High Emission Cross Section Research Articles

High-efficiency 1.6 μm-band fiber laser based on single Er3+-doped tungsten tellurite glass with high mechanical strength through tailored glass network

In this study, the correlation between the Raman structure, thermal stability, and mechanical properties of TeO2-ZnO-La2O3–WO3 glasses with varying WO3 contents are systematically established. By exploring the critical point in the transformation process of glass network structural units, the optimal glass components of 74TeO2-12ZnO-5La2O3–9WO3 glass possess the maximum thermal stability (158 °C) and the highest mechanical properties at the same time. The maximum Vicker hardness and Young's modulus of the optimal glass can reach up to 4.007 GPa and 56.212 GPa, which are higher than those of the well-known TeO2-ZnO-Na2O (TZN) and TeO2-ZnO-La2O3 (TZL) glasses. Furthermore, the 0.5 mol% Er3+-doped glass at this critical point (TZLW-0.5Er) exhibits a higher laser figure of merit (54.29 × 10−21 cm2 ms), a larger laser gain bandwidth value (116 nm) and higher emission cross-sections at 1600 nm (2.52 × 10−21 cm2) and 1625 nm (1.06 × 10−21 cm2) than other host glasses. Finally, high-efficiency laser outputs at 1600 and 1625 nm based on TZLW-0.5Er glass fiber are successfully achieved by simulation. These results show the greater practical potential of TZLW-0.5Er glass with higher mechanical strength compared to TZN and TZL fibers for the 1.6 μm-band laser.

Growth, structure and optical characterization of new Pr3+-doped LaGaGe2O7 and LaGa0.6Al0.4Ge2O7 single crystals

In this work, a new crystal belonging to the germanate family: LaGaGe2O7 (or LGGO) doped with trivalent Praseodymium (Pr) ion is studied. We report the first single crystal growth of this material using the Czochralski method. The spectroscopic properties including absorption and emission cross-sections of praseodymium in this new matrix are measured, as well as the refractive index along the dielectric axes. This material exhibits very high emission cross sections of 38, 20, and 16 10−20 cm2 at 746 nm, 646 nm and 620 nm, respectively. Some persistent luminescence is observed in Pr:LGGO after UV irradiation at 254 nm. To reduce the phenomenon, the solid solution LaGa1-xAlxGe2O7 (0 ≤ x ≤ 1) is considered. Thermoluminescence experiments show that a substitution of 40 % of gallium by aluminium in the crystal structure allows to suppress this persistent luminescence phenomenon.

Luminescence properties of CdF2 single crystals co-doped with Er3+ and Y3+ ions.

The luminescence properties of erbium and yttrium co-doped cadmium difluoride with three different concentrations of yttrium were investigated. First, we synthesized single crystal samples with good optical quality using the Bridgman technique. From the optical absorption spectra, recorded at room temperature, both in the ultraviolet-visible and infrared spectral ranges, Judd-Ofelt analysis was performed based on yttrium concentrations to predict the radiative properties of Er3+ luminescent ions. For the 10% optimum concentration of yttrium, a detailed photoluminescence investigation was carried out. We mainly explored green, red, and near-infrared fluorescence under different excitation wavelengths and presented their highlight spectroscopic characteristics. The desired transitions had relatively high emission cross-sections both under visible and near-infrared excitation. Optical gain followed a similar trend. Furthermore, the dynamic fluorescence study showed a significant increase in the measured lifetime under an 800 nm infrared excitation. The upconversion process under an 800 nm excitation produced quantum efficiency greater than 100% due to the contribution of more than one energy transfer mechanism.

Investigation of radiation shielding and optical properties of neodymium doped Bismuth Boro tellurite glasses for solid state device applications

In this work, a variety of glass samples with different chemical profiles for optical applications were synthesized, and characterized. The thermal properties of the prepared glass are investigated through Differential Thermal Analysis (DTA) and we have observed the endothermic peak at 894.9 °C and exothermic peak at 1066 °C. The optical properties were investigated using a UV–Visible–NIR Spectrophotometer, and the radiation shielding properties were reported using the Phy-X/PDS software. The optical property results show that when the amount of Nd3+ ions in a glass structure grows, the oscillator strengths also increase. The high emission cross-section and excellent quantum efficiency indicate that glass has the potential for compact 1.06 μm laser applications. The Photoluminescence (PL) analysis of Nd3+ ions doped prepared glass samples are recorded at 808 nm laser diode. The emission spectra for every Nd3+ ion concentration exhibit three distinct emission peaks at wavelengths of 902 nm, 1064 nm, and 1339 nm. The investigation of luminescence kinetics revealed the development of neodymium ion clusters commencing at a neodymium concentration of 1.006 × 1020cm−3. Furthermore, we noticed that the addition of Nd2O3 increased the mass attenuation coefficient and effective atomic number of the glass samples. In terms of the glasses' ability to absorb charged particles, the Nd2O3 addition also made a difference in Half Value Layer, Mean Free Path, and Effective atomic number. The research shows that the glass samples are non-toxic, visible light transparent, and radiation-efficient.

Down-conversion emission of Er3+ doped sulfophosphate glass: The role of TiO2 and Ag nanoparticles co-embedment

In this study, Er3+-doped sulfophosphate glasses containing titanium nanoparticles (TiO2 NPs) with 0.0, 0.01, 0.02, 0.03, 0.04, and 0.05 mol% of silver (Ag) nanoparticles (AgNPs) were synthesized using the melt-quenching technique. The impact of AgNPs on the physical and structural characteristics, optical absorption and emission features, and photocatalytic activity of the glasses were investigated. The density and molar volume of the glasses were determined. Transmission electron microscopy (TEM) was used to study the existence of both AgNPs and TiO2 NPs in the glass matrix. The absorption spectra of the glasses revealed several bands of absorption in the UV–Vis–NIR region, with peaks at 1534, 977, 795, 650, 544, 520, 487, 450, 406, 378, and 364 nm. The SPR peaks of silver were observed at 553 and 588 nm, while those of TiO2 NPs were located around 409 and 849 nm. The intensity of emission was found to be enhanced by increasing the concentration of AgNPs. According to the findings of Judd-Ofelt theory, the system containing of 0.04 mol% of AgNPs has also the optimal performance which can be applied to the function of a broadband amplifier by having a high emission cross section of 70.18 × 10−22 cm2. Finally, the photocatalytic performance of the glasses was evaluated by conducting a degradation experiment with methylene blue (MB). The results validated their light-activated self-cleaning properties in the presence of Ag/TiO2 NPs.

Spectroscopic investigations of Tm3+ doped CdF2 single crystals and infrared laser potentialities

By use of standard Bridgman technique, CdF2 single crystals doped with Tm3+ have been obtained with good optical quality. XRD analysis has been performed confirming the cubic structure. An ordered sequence of spectroscopic measurements (including absorption, excitation, emission and fluorescence dynamics) was carried out at room temperature. By exploiting both UV–Visible and near-infrared absorption spectra, the JO phenomenological parameters are determined by taking into account the complete refractive index dispersion, which allowed us to compute the probabilities of all transitions. Under 355 nm wavelength excitation, the Stokes emission spectrum exhibits mainly an intense blue emission line around 450 nm which is associated to 1D2→3F4 excited state transition. Whereas, the anti-Stokes blue emission around 480 nm associated to 1G4→3H6 transition is obtained under infrared excitation according to a two photon absorption mechanism. For both blue emissions, the CIE chromaticity coordinates of CdF2:Tm3+ are located in the blue region.As trivalent Tm3+ ions are known for their emissions in the near- and mid-infrared spectral ranges suitable for efficient laser operation, we have systematically studied the fluorescence behavior of the eye safe emission (pointed at ∼1.8 μm) and associated to the 3F4 → 3H6 transition. Such transition exhibit a relatively high emission cross-section (σem = 0.22 × 10−20 cm2) and a positive gain cross-section at low pumping threshold with a metastable fluorescence lifetime decay.

Boosting Nd3+ emission in Nd/Al/Y co-doped silica glass by mid-range localized environmental manipulation

Improving the repetition frequency of high-energy lasers is vital to promote the development and application of high-energy lasers, and its key lies in finding the laser gain media with excellent thermal shock resistance and high emission cross-section. Rare-earth ion (RE3+)-doped silica glass, whose thermal shock parameter is 1.5 times higher than that of yttrium aluminum garnet (YAG) crystals, is expected to satisfy this criterion after enhancing the emission intensity of RE3+. Nevertheless, modulating the spectral properties of RE3+ in rigid silica glass networks poses a significant challenge. Herein, we propose a mid-range localized environmental manipulation approach, which dramatically changes the microscopic symmetry of RE3+ from amorphous to the desired crystal structures for emission enhancement. As a representative, Nd/Y/Al co-doped silica glasses were prepared and heat-treated for different durations to form different mid-range localized environments, which were demonstrated by transmission electron microscopy, electron paramagnetic resonance tests, and Judd-Ofelt theory analysis. The results show that Nd3+ enters the YAG structure in favor of its emission enhancement. After optimizing the mid-range local environment of Nd3+ to balance fluorescence enhancement with fluorescence quenching and Rayleigh scattering, the emission intensity increases by 300%. Our work suggests that the mid-range localized environmental manipulation approach is extremely promising for promoting the development of high-energy and high-repetition-rate lasers. Furthermore, this approach can be generalized to adjust the emission characteristics of other RE3+-doped glasses and fibers.

Effect of silica-alumina co-introduction on structure as well as physical and spectroscopic properties of Nd3+-doped potassium phosphate glass

The effect of silica-alumina co-introduction on physical and spectroscopic properties of Nd3+-doped potassium phosphate glass was investigated. The Raman and X-ray photoelectron spectroscopy (XPS), physical parameters as well as spectroscopic characteristics were determined and analyzed in detail. Q2 units gradually increase while Q1 units have the opposite trend with the increase of SiO2/Al2O3 ratios. Meanwhile the total number of [AlO6] octahedrons and [AlO4] tetrahedrons continue to decrease with [AlO6]/ [AlO6]+ [AlO4] ratio keeping rise. As a result, the increase of more symmetrical bridge oxygen bonds and more ionic Si-O bonds lead to more centrosymmetric and stronger ionicity of Nd3+ ion coordination environment. The physical and spectroscopic properties of glasses benefit from silica-alumina co-introduction. When SiO2/Al2O3 ratio was 1.8, the glass showed a high emission cross-section of 3.05 × 10−20 cm2, a high optical gain parameter of 10.8 × 10−24 cm2s, together with wider gain bandwidth parameter of 7.61 × 10−26 cm3.

Tm3+/Ho3+ co-doped tellurate glass with high emission cross section for 2μm fiber lasers

A modified melt quenching technique was used to prepare new Tm3+/Ho3+ co-doped TeO2-Ta2O5-La2O3 (TTL) glass with high emission cross section. By standing the traditional tube furnace sideways, the melt quenching method is optimized to produce tellurate glass efficiently and simply. The performance of the glass system is studied in detail, and the possibility of this glass system as a 2.0 μm fiber laser material is obtained. The glass system was obtained by test analysis to have large refractive index (nd>2.01) and density (>5.28 g/cm3), excellent mechanical properties (>4.5Gpa). TTL5 glass was obtained with excellent glass transition temperature (Tg>439 °C) and good resistance to crystallization based on thermodynamic analysis(ΔT>170 °C). In addition, the bonding structure was studied and maximum phonon energy of TTL5 glasses was determined to be ∼669 cm−1 by Raman. The SEM micrographs show well the surface micromorphology of TTL3 and TTL5, and EDAX verifies that the results of elemental analysis of this system of glasses are reliable. Fluorescence spectroscopy demonstrated a TTL5 series of samples with 2.0 μm strong emission. Finally, the absorption emission cross-sections of Ho3+ were calculated to be as high as7.92×10−21 (at 1963 nm) and 12.301×10−21 (at 2061 nm), respectively, with a maximum gain factor of 2.75 cm−1. The results show that this new TTL series glass has high thermal stability, low phonon energy, and efficient 2.0 µm fluorescence, extending the tellurite glass system and being a good candidate for obtaining efficient 2.0 µm emission.

Influence of Mixed Na2O/K2O on Chemical Durability and Spectral Properties of P2O5-Al2O3-BaO-K2O-Na2O-Nd2O3 Phosphate Glasses.

A series of 56P2O5-7.5Al2O3-5.9BaO-(28.56-x)K2O-xNa2O-1.51Nd2O3 phosphate glasses with different Na/(Na+K) ratios, which were specially designed for high-power laser application, were prepared by a high-temperature melting method. Except for the density, refractive index, glass transition temperature, and DC conductivity, the chemical durability and spectral properties, as emphasized by high-power and high-energy laser material, were further measured and analyzed. Regarding the chemical durability, the dissolution rates of these glasses do not show an evident mixed alkali effect with increasing the Na/(Na+K) ratio, although the effect is obvious for the glass transition temperature and DC conductivity. To better understand the nature of the dissolution mechanism, the ionic release concentrations of every element are determined. Both Na and K undergo ion exchange, but the ion exchange rate of K is much larger than that of Na. In terms of the spectral properties, the J-O parameters, emission cross-section, radiation lifetime, fluorescence lifetime, effective bandwidth, fluorescence branching ratio, and quantum efficiency are determined from absorption and emission spectra. The trend of Ω2 deviating from linearity indicates that the coordination environment symmetry of Nd3+ ions and the covalence of Nd-O also present an evident mixed alkali effect. The most important finding is that the emission cross-section and fluorescence lifetime of Nd3+ ions at 1053 nm were not affected by the change in the Na/K ratio. According to the above experimental results, the optimized value of the Na/K ratio was determined, based on which the 56P2O5-7.5Al2O3-5.9BaO-(28.56-x)K2O-xNa2O-1.51Nd2O3 glass maintains a high emission cross-section with good chemical durability.

Er3+-doped barium sodium borate glasses development for 1.54 µm broadband amplifier and optical laser

Er3+-doped BaNaB glasses with 0.5, 1.0, 2.0, 3.0 and 4.0 mol% of Er3+ were prepared by melt-quenching technique for study their luminescence properties in NIR and visible regions. The absorption spectra showed the absorption bands at 381, 406, 451, 488, 522, 545, 653, 804, 977 and 1532 nm in UV-Vis-NIR region. The NIR emission spectra, excited with 977 nm, show the broad band centered at 1540 nm in the range of 1460–1625 nm covers the S, C and L bands that have low transmission loss region in fiber-optic communication. The glass sample with 3.0 mol% of Er3+ provides the highest intensity of NIR emission. From the Judd-Ofelt analysis and McCumber theory, the glass sample with 4.0 mol% of Er3+ show the best performance for use as a broadband amplifier with the high gain bandwidth at 633.64 × 10−28 cm3 and the high emission cross section at 7.51 × 10−21 cm2. For the emission in visible region, when excited with 349 nm, the glass sample with 3.0 mol% of Er3+ provides the most intense emission in yellow-green region, when excited with 402 nm, the glass sample with 4.0 mol% of Er3+ provides the most intense emission in green region. The results from the McCumber theory and gain efficiency show good agreement of the glass sample with 4.0 mol% of Er3+ for use as broadband amplifier in C and L communication windows when the population inversion is more than 50%.

Luminescence and Gamma Spectroscopy of Phosphate Glass Doped with Nd3+/Yb3+ and Their Multifunctional Applications

A new glass with a composition of 40P2O5-30ZnO-20LiCl-10BaF2 (in mol%), doped with 3.5Nd2O3-3.5Yb2O3, was fabricated by the quenching melt technique. The luminescence (PL) and gamma spectroscopy of the glass were investigated systematically. The spectroscopic parameters of the prepared glass, such as the optical energy gap, Judd–Ofelt parameters Ωk (where k = 2, 4 and 6), lifetimes and branching ratio of the Nd3+/Yb3+ level, were evaluated. Moreover, the shielding parameters, such as the linear and mass attenuation coefficients, mean free path and half-value layer, were evaluated. The prepared glass had a spectroscopic quality factor (Ω4/Ω6) of 0.84, which is about three-times larger than that of the most standard laser host, Nd3+:YAG. The energy of the 2P1/2 (Nd3+) level (~23,250 cm−1) was twice the energy of the Yb3+ transition (~10,290 cm−1). The value of the emission cross section (σem(λ)) of Nd3+:4F3/2→4I9/2 and Yb3+:2F5/2→2F7/2 were 2.23 × 10−24 cm2 and 2.88 × 10−24 cm2, respectively. The fabricated glass had a high emission cross section and low mean free path parameters, which makes the fabricated glass a potential candidate for multifunctional applications, such as laser emissions for medical purposes.

Pump control based pulse on demand operation of frequency doubled Nd:YVO4

Directly pump controlled pulse on demand operation of an intracavity frequency doubled Nd:YVO4 laser is presented, capable of generating arbitrary delay between pulses in the output sequence with the upper limit in MHz range. Micro pulses on demand were achieved by the gain switching technique and intracavity doubling through the optimization between the conversion efficiency and achievable repetition rate. Further, the article presents first study of a high modulation intracavity doubled Nd:YVO4 laser utilizing the crystals high emission cross section for fast gain switching. In the free space experimental setup, the highest repetition rate over 2 MHz and frequency doubling efficiency of 30% were achieved with the further scaling possible using optically bonded tightly packed architecture. The demonstrated pulse on demand operation of a compact micro pulsed laser at 532 nm enables full synchronization with the application.

Reddish-orange emissions from Sm3+ doped zinc alumino borosilicate glasses: A correlative study on structural, thermal, and optical properties

The present study investigates the structural, thermal, and optical properties of Sm3+-doped Zinc Alumino Borosilicate (ZABS) glasses obtained through the melt-quenching method. The prepared glasses clearly exhibit an amorphous nature confirmed by XRD analysis. Through FTIR studies, the vibrations of metal cations, B2O3, SiO2, Al2O3 network groups and OH groups were analysed. This study helps to determine the bridging and non-bridging oxygen quantity in glass structures including Sm2O3. Through differential thermal studies, the thermal stability factor and its related calculations were carried out. Glasses showed a thermal stability (ΔT) value > 100 °C. Absorption spectra of the glasses showed thirteen peaks emerged from the lower ground state 6H5/2. The bonding parameter calculation showed that the glasses exhibit ionic bonding. The Judd-Ofelt (J-O) parameters followed the same trend Ω4 >Ω2> Ω6 for the synthesized glasses. The bandgap values of the glasses decrease with higher content of NBOs in the glass network, and the Urbach energy (EU) increases. The luminescence spectra of the glasses show four emission peaks such that the intense emission is seen at transition 4G5/2 → 6H7/2 at 599 nm. The radiative parameters calculation showed that Sm3+- 0.5 mol% glass has a higher emission cross section (σse) and transition probability (AR). Decay curves were recorded for all the glasses that show single exponential behavior with extended lifetimes (ms). Glasses produce reddish-orange emissions under 402 nm excitation and the values of correlated color temperature (CCT) lie in the range of 1500–1600 K. Overall, the prepared Sm3+-doped ZABS glasses act as a good candidate for luminescent display applications and laser materials.

Study the Effect of Ag NWs Concentration on Surface Plasmon Polariton

The laser dyes can be used in many practical systems as a gain medium. The dye consists of fluorescence molecules in organic or water solvent. A dye can be pumped efficiently and can exhibit high gain, due to the high fluorescence quantum efficiency and broad emission and absorption cross-sections. For this reason, the dye used as a gain medium. The large bandwidth of the gain in the dyes gives a broad tuning range for the laser's output. It (RhB dye) was utilized at various concentrations, and a UV-VIS spectrometer was used to study the absorption spectra of these materials, followed by fluorescence spectroscopy to investigate the emission spectrum. A greater concentration of dye (1*10-5M) was used to mix with different amounts of Ag NWs. It will have a substantial influence on the parameters of the emission and absorption spectra. It was discovered that the emission parameters (emission intensity, lasing threshold) are greatly dependent on the concentration of Ag NWs.

Novel Tm3+/Ho3+ Co-Doped Tellurate Glass with High Emission Cross Section for 2μm Fiber Lasers

Novel Tm3+/Ho3+ Co-Doped Tellurate Glass with High Emission Cross Section for 2μm Fiber Lasers

Structural and spectroscopic investigations of neodymium-doped strontium borophosphate glass.

Neodymium-doped glass finds application in lasers with high energy and low pulse width. In the present study, a series of Nd3+ ions (0-2 mol%)-doped strontium borophosphate (SBP) glass samples was prepared through the conventional melt quench method. A broad peak in the X-ray diffraction spectrum confirmed the formation of a single-phase amorphous borophosphate glass. Fourier transform infrared spectra of the doped and undoped glass samples indicated the presence of borate and phosphate groups that form the anionic network. The thermal properties of the glass samples were determined from thermogravimetry/differential thermal analysis. Photoluminescence and ultraviolet-visible light techniques were used to investigate the optical properties of the as-prepared SBP:Nd glass. The Judd-Ofelt (JO) intensity parameters Ωλ (2, 4, 6), stimulated emission cross-section, branching ratios, and transition probabilities of the Nd3+ -doped glass were obtained through the JO analysis. Characteristic Nd3+ emission peaks were observed at 1330, 1060, and 876 nm, corresponding to the 4 F3/2 →4 IS/2 (S = 13, 11, and 9) transitions, respectively. The suitability of SBP:Nd (0.5 mol%) glass for use in solid-state lasers was demonstrated by its intense luminescence, high transition probability, high emission cross-section, optical gain, and luminescence branching ratio.

Structural evolution, crystallization behaviour and mid-infrared emission properties in Yb/Ho codoped oxyfluoride germanosilicate glass ceramics with varied Si/Ge ratio

Changes in glass structure and crystallization behaviour from oxyfluoride silicate glass to oxyfluoride germanate glass were studied by modifying the ratio of Si/Ge in oxyfluoride germanosilicate glass ceramics, and transparent glass ceramic with low light scattering and efficient mid-infrared emissions were obtained. The NaYF4 nanocrystals crystallization ability of oxyfluoride glass was decreased with the increase in Ge content, which can be attributed to the weakened oxide and fluoride phase separation in GeO2-rich glass. Upconversion and down-conversion emission spectra together with Ho3+: 5I6 energy level fluorescent decay curves have been discussed for SiO2-rich glass ceramics and GeO2-rich glass ceramics, in which the fluoride crystallization induced the decrease of multi-phonon non-radiative decay rates plays the main role in the energy transfer processes. The influence of Si/Ge ratio on 2 μm and 3 μm fluorescent emissions in glasses and glass ceramics, and its link with glass network structural changes were discussed. The optimized Yb/Ho codoped oxyfluoride germanosilicate glass ceramic with low light scattering, high peak emission cross section(11.18 × 10−21cm2) and maximum gain coefficient (1.387 cm−1) at 2888 nm provides a potential application in the development of new 3 μm laser devices based on transparent oxyfluoride glass ceramic materials.

High content Er3+ doped ZBLAN glass: The spectral characteristics and high slope efficiency MIR laser investigation

The ZBLAN glass with high content of Er3+ was prepared and studied. The glass has a wide infrared transmittance range of 2.5–8.0 µm, which means a lower maximum phonon energy. By testing and analyzing the fluorescence spectrum and lifetime curves under different penetration depths, the intrinsic emission spectrum and lifetime of the sample are obtained without the influence of sub-absorption. Under 980 nm excitation, the maximum emission cross section and the lifetime of 2.7 µm are 6.10 × 10−21 cm2 and 6.49 ms, indicating that high-concentration doping has a larger laser quality factor. According to the rate equation and transmission equation, cascaded and non-cascaded fiber laser models are established to conduct research on 2.7 µm fiber lasers. The slope efficiency can reach 40.38% at a pump wavelength of 980 nm and a fiber background loss of 0.1 dB/m. The high emission cross section, long fluorescence lifetime and high slope efficiency output make ZBLAN glass heavily doped with Er3+ an ideal host material for mid-infrared lasers.

Crystal growth, structure, defect, and spectroscopic properties of the Nd3+-doped Y2.8ScAl4.2O12 single crystal

A Nd 3+ -doped Y 2.8 ScAl 4.2 O 12 (Nd:YSAG) single crystal was grown successfully via the Czochralski technology. The crystal structure and crystalline quality of the as-grown Nd:YSAG crystal were determined by the X-ray powder diffraction and X-ray rocking curve, respectively. By X-ray fluorescence analysis, the effective segregation coefficient of Nd 3+ is calculated to be 0.33 in the YSAG crystal. Using the chemical etching method, the dislocation density on the (111)-crystalline face is obtained to be about 3.45 × 10 2 cm −2 . The large absorption cross-section (2.95 × 10 −20 cm 2 ) and wide FWHM (9.8 nm) around 808.8 nm imply a high LD pumping efficiency. The high emission cross-section (3.53 × 10 −20 cm 2 ) at 1336.3 nm and long fluorescence lifetime of Nd 3+ ions (286.20 μs) are beneficial to realize laser output. Thereby, all the results indicate that the Nd:YSAG crystal is a potentially new gain material pumped by a LD for near-infrared laser at 1336.3 nm. • A Nd 3+ :Y 2.8 ScAl 4.2 O 12 crystal was grown successfully by the Czochralski method. • Dislocation density on the (111)-crystalline face is obtained to be 3.45 × 10 2 cm −2 . • A large absorption cross-section (2.95 × 10 −20 cm 2 ) implies high pumping efficiency. • High emission cross-section (3.53 × 10 −20 cm 2 ) is beneficial to realize 1336.3 nm laser. • All results indicate this crystal is a potential gain material for 1336.3 nm laser.