BROWSE
Detail
Journal Article
Optimizations of the Thickness and the Operating Temperature of LiB3O5, BaB2O4, and KTiOPO4 Crystals for Second Harmonic Generation
Cited 1 time in 
Share 
Share
- Authors
- Doo Jae Park, Hong Chu, Won Bae Cho, Soo Bong Choi
- Issue Date
- 2015-12
- Citation
- 새물리, v.65, no.12, pp.1234-1240
- ISSN
- 0374-4914
- Publisher
- 한국물리학회 (KPS)
- Language
- English
- Type
- Journal Article
- Abstract
- We demonstrate a theoretical study for determining the optimal crystal thickness and operating temperature when generating a second harmonic of a pulse laser with pulsewidths ranging from a few tens of femtosecond to a few nanosecond by using commonly-used nonlinear crystals of lithium barium borate, beta barium borate, and potassium titanyl phosphate. The optimal thicknesses of those crystals to avoid any pump pulse depletion for a fundamental-mode laser pulse having a high intensity and a long pulsewidth was calculated as a function of the intensity and the pulsewidth of the fundamental mode. Also, for short-pulse operation, thickness limits are calculated for conditions under which no pulse dispersion due to group velocity mismatch is observed. Finally, the fluctuation of second-harmonic yield due to temperature variations which introduce a refractive-index change is calculated, and the effective temperature ranges are demonstrated for room-temperature operation.
- KSP Keywords
- Crystal thickness, Effective Temperature(ET), Fundamental mode, Group velocity mismatch, High intensity, Laser pulse, Operating Temperature, Pulse laser, Refractive index change, Room-temperature operation, Second Harmonic Generation