Abstract
This paper presents a modified method to study the dispersion properties of infrared nonlinear optical crystals, which takes advantage of the first principles calculations and oscillator model. The phonon effects play an important role in the dispersion properties, and obvious discrepancies between calculated and experimental results are found due to the lack of such effects in first principles optical property calculations. In order to compensate for such deficiency, the oscillator model was introduced. Phonon oscillator terms are added to the calculated dispersion equations, and the phonon oscillator coefficients can be obtained from first principles infrared dielectric property calculations. With the modified method, the simulated dispersion curves of GaAs, CdSiP2, AgGaS2, and ZnGeP2 crystals show excellent agreement with the experimental results.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
