Xenon Ion Laser Research Articles

A pulsed Xe ion laser with a double-discharge excitation

A long-pulse ( approximately 30 mu s) xenon-ion laser with a maximum output energy of 20 mJ has been developed by using a double-discharge technique. Design details of the laser tube and the discharge circuits are described. Laser performance for different discharge circuits and working parameters (gas pressure and excitation voltage) is also presented.

Generation of 1180 å period gratings with a Xe ion laser

Holographic lithography with the 2315 Å line of a xenon ion laser is used to produce gratings in polymethylmethacrylate. An 1180 Å period grating is made and examined with a scanning electron microscope (SEM). This grating period is appropriate for use as a first-order grating with a GaAs distributed feedback laser.

Parametric study of a pulsed xenon-ion laser

Detailed results of the parametric behavior of the prominent seven visible transitions in a pulsed Xe IV laser are reported. The various laser parameters considered are gas pressure, excitation voltage, energy storage capacitor, and the diameter and length of the plasma tube. Based on our results we believe that lasing is favored in larger bore tubes as wall collisions play a significant role in quenching the laser action.

Subpicosecond-pulse development in a colliding-pulse mode-locking dye laser pumped by a pulsed xenon laser

We obtain 0.34-psec optical pulses by using a long-pulse xenon-ion laser as a pump source in a colliding-pulse mode-locking (CPM) configuration. The pump shape is an important parameter affecting the development of short pulses. Some characteristics of xenon- and argon-laser-pumped CPM systems are compared.

A mode-locked dye laser pumped by a xenon ion laser

Passive mode-locking of a rhodamine 6G dye laser has been achieved, using a pulsed xenon ion laser as a pumping source. A pulse width of 5 ps and a peak power of 4 kW have been obtained. Thermal problems were encountered, which adversely affected the operation of the dye laser. Work is in progress to improve these results.

A subpicosecond dye laser pumped by a xenon ion laser

A pulsed xenon ion laser has been used to pump a rhodamine 6G dye laser utilizing a ring resonator. The dye laser has been passively mode-locked; a pulsewidth of 0.5 ps and a 50 kW peak power have been obtained.

A long-pulse xenon ion laser as a pumping source for dye lasers

A simple xenon ion laser that is either sealed or has a gas flow mode is described. The laser delivered long pulses (∼ 15 μs) of almost 1 kW peak power. It has been used to pump a dye laser employing the same configuration as cw dye lasers. The system is inexpensive and can be mode-locked, enabling it to yield ultrashort pulses comparable in duration to those delivered by cw argon laser-pumped dye lasers but with much higher peak powers.

Frequency locking in double-pumped dye laser

A jet-stream dye laser was pumped simultaneously by a CW argon laser and a high-power xenon ion laser. The frequency and bandwidth of the pulsed radiation obtained were locked to the CW radiation inside the folded cavity.

Injection-locked dye laser pumped by a xenon-ion laser

Injection locking of a dye laser is reported for a 4-mirror ring-cavity dye laser pumped by a xenon-ion laser. Both a He-Ne laser and tunable CW dye laser were used as the injection sources.

A xenon ion pumped open dye stream laser

A pulsed xenon ion laser with an output power of 1 kW over the blue-green lines was used to pump an open dye stream laser. An efficiency of the order of 40 percent was determined in broad-band mode operation. The bandwidth in this case was 48 nm (from 582 to 630 nm).

A xenon ion pumped blue dye laser

A pulsed xenon ion laser with an output power of 5 kW at 364.5 nm has been used as a pump source for several blue dyes. Broad-band conversion efficiencies exceed 20 percent. The use of a birefringent filter provides tunable output in the blue region of the spectrum with a bandwidth of 0.08 nm and a pulsewidth of 120 ns.

Single-mode operation of a repetitively pulsed dye laser

A Hansch-type dye laser pumped by a xenon ion laser achieves single-mode operation with a frequency jitter of 32 MHz and a peak power of 2 kW.

A high-power pulsed xenon ion laser as a pump source for a tunable dye laser

An inexpensive pulsed xenon ion laser with peak power outputs up to 4 kW has been constructed and used as a pump source for a tunable rhodamine 6G dye laser with a 0.25-Å bandpass in the yellow-red range of the spectrum. The dye laser is tunable from 5465 to 6300 Å. Over 50 W are obtained at the peak of the tuning range.

Construction of a high power xenon ion laser

Construction of a pulsed xenon ion laser, which has a combined peak power on all visible lines of over 80 kW is described. Design of the laser and the pulsing circuit is detailed, and the light pulse shape, peak power and electrical effieciency of the laser are discussed.

A high-power pulsed xenon ion laser

Output and threshold characteristics of small-bore pulsed xenon ion lasers are presented in detail as a function of current and gas pressure for ranges of these parameters that are consistent with high optical power output in the green-blue spectral region. It has been found that six wavelengths characteristic of xenon exhibit peak output powers greater than 100 watts, from a 5-foot laser tube over a limited (8-24 mtorr) range of xenon tube pressure. Laser action has also been obtained at high peak powers for longer current pulse ( 5-50 \mu s) operation of the tube. In addition, observation of three new laser wavelengths 5340, 5501, and 5590 A is reported. These lines are only observed at very low tube pressures and very high peak currents.

Radiative-lifetime measurements of levels in the 5p^4 6p configuration of singly ionized xenon*

Radiative lifetimes were measured for six levels that constitute the upper states of the more-important cw xenon-ion laser transitions. The values ranged from about 7 to 10 ns and were determined within limiting errors of about 5%.

Simple dye laser repetitively pumped by a xenon ion laser

A rhodamine 6G laser and a cresyl violet laser emit light pulses of 0.3-μs pulse length and 10-20 W peak power at a rate of 120 Hz when pumped with an inexpensive xenon ion laser.

Nd:YALO oscillation at 0.930 µm at 300 K

Oscillation at 0.930 μm was obtained by end pumping a c -axis Nd:YALO rod at 300 K with the output of a pulsed xenon ion laser.

New Nd:YAG laser transitions<sup>4</sup>F<inf>3/2</inf>→<sup>4</sup>I<inf>9/2</inf>

Oscillation at 0.939, 0.900, 0.891 μm was obtained by end pumping a Nd:YAG rod at room temperature with the output of a pulsed xenon ion laser.

Linear and nonlinear optical properties of AgGaS<inf>2</inf>, CuGaS<inf>2</inf>, and CuInS<inf>2</inf>, and theory of the wedge technique for the measurement of nonlinear coefficients

The refractive indices of the ternary A^{I}B^{III}C_{2}^{VI} semiconductors AgGaS 2 , CuGaS 2 , and CuInS 2 have been measured over the entire range of transparency of these crystals. The optical nonlinear coefficients for second-harmonic generation have also been determined. Three-frequency collinear phase matching is analyzed in detail for AgGaS 2 . The birefringences of CuGaS 2 and CuInS 2 are not large enough to permit three-frequency phase matching within the transparent regions. A parametric oscillator threshold calculation for a pump wavelength 0.89 μ, which is within the range of the GaAs injection laser, indicates that AgGaS 2 is promising for this application. The upconversion efficiency in AgGaS 2 for sum mixing of the CO 2 laser ( \lambda = 10.5 \mu ) with the xenon ion laser ( \lambda = 0.597 \mu ) is also calculated. The result indicates that, depending upon system requirements and the availability of high optical quality material, AgGaS 2 can be comparable to ZnGeP 2 for upconversion. In Appendix II, we present a theory of the wedge technique for the measurement of nonlinear coefficients. This theory takes into account losses and assumes a Gaussian beam geometry. Furthermore, a discussion of units in nonlinear optics is given.