Refractive index dispersion and anisotropy in Cr4+:Mg2SiO4
Source abstract
Abstract
Abstract Room-temperature refractive index dispersion and anisotropy were measured in the orthorhombic Cr4+:Mg2SiO4 (Cr4+:forsterite) single crystal between 300 and 2000 nm. Use was made of bireflection in an oriented single crystal prism and of birefringence modulation in an oriented plane-parallel sample for obtaining accurate measurements of the anisotropy. Minimum-deviation measurement in an oriented prism provided the refractive index dispersion for one of the axes, whence for the other two axes as well. The crystal is biaxial, and its dielectric principal axes X, Y, and Z, coincide with the crystallographic b, a, and c axes, respectively. Taking 632.8 nm (the HeNe laser line) as a representative wavelength of the visible range, the refractive indices would be na=1.6505±0.0005, nb=1.6365±0.0006, and nc=1.6685±0.0006. The dispersion curves were fitted to different Sellemeier functions. Our results would be very useful for the design of compensating elements of group-velocity dispersion in Cr4+:Mg2SiO4 short-pulse laser cavities.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Solid State Laser Technologies · Photorefractive and Nonlinear Optics · Glass properties and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (23)
Show source-provided references
1. Laser action in chromium-doped forsterite10.1063/1.99203 ↗
2. Continuous-wave laser operation of chromium-doped forsterite10.1364/OL.14.000612 ↗
3. Tunable, CW operation of a multiwatt forsterite laser10.1364/OL.16.001662 ↗
4. Verdun · Appl. Phys. Lett. · 1988 · 53 · 259310.1063/1.100537 ↗
5. Femtosecond pulse generation by using an additive-pulse mode locked chromium-doped forsterite laser operated at 77 K10.1364/OL.17.001216 ↗
6. Generation of sub-100-fs pulses from a CW mode-locked chromium-doped forsterite laser10.1364/OL.17.000937 ↗
7. Generation of 48-fs pulses and measurement of crystal dispersion by using a regeneratively initiated self-mode-locked chromium-doped forsterite laser10.1364/OL.18.000826 ↗
8. Generation of tunable femtosecond pulses in the 1.21–1.27 and 605–635 μm wavelength region by using a regeneratively initiated self-mode-locked Cr:forsterite laser10.1109/3.301649 ↗
9. All-solid-state femtosecond sources in the near infrared10.1016/S0030-4018(96)00706-7 ↗
10. Generation of 25-fs pulses from a self-mode-locked Cr:forsterite laser with optimized group-delay dispersion10.1364/OL.18.001541 ↗
11. Some optical properties of Cr4+-doped crystals10.1016/S0925-3467(99)00020-8 ↗
12. Growth and characteristics of Mg2SiO4:Ti10.1016/0022-0248(94)90183-X ↗
13. J. Cryst. Growth · 1988 · 53 · 2593
14. Th.G. Sahama, D.R. Torgeson, Thermochemical study of the olivines and orthopyroxenes, US Bur. Mines Rept. Invest. 4408, 194910.1086/625607 ↗
15. Crystal structure of natural olivines
16. Method for complete determination of the refractive index tensor by bireflectance: Application to CdWO410.1364/OL.12.000561 ↗
17. Ditchburn · 1963
18. Moss · 1961
19. See e.g., Y. Shimony, Cr4+-doped crystals for laser applications, in: M. Oron, I. Shladov, Y. Weissman (Eds.), Proceedings of the 8th meeting on optical engineering in Israel, December 1992, SPIE vol., 1972, p. 13910.1117/12.151087 ↗
20. Y. Kalisky, C. Labbé, K. Waichman, L. Kravchik, U. Rachum, P. Deng, J. Xu, J. Dong, W. Chen, Passively Q-switched, diode-pumped Yb:YAG using Cr4+-doped garnets, Opt. Mater., in press10.1016/S0925-3467(02)00003-4 ↗
21. Excited state absorption and stimulated emission measurements in Cr4:forsterite10.1016/S0022-2313(97)00131-2 ↗
22. Near infrared and visible excited-state absorption in Cr4:forsterite
23. Dmitriev · 1999