Web1 day ago · According to the laser resonator theory [25], [26], the frequency spacing between adjacent longitudinal modes in the resonator is expressed as (9) ∆ λ = λ 2 2 nL where λ represents the output laser wavelength, n=1.82 is the refractive index of Nd:YAG crystal, l=3.5 mm is the length of laser resonator, and the calculated result of ∆ λ is ... WebThe mechanism for refractive-index changes that accompany changes in population during pumping and amplification of an optical beam is studied in a Nd:YAG laser crystal by both resonant four-wave mixing and interferometric techniques.
Thermal coefficients of the expansion and refractive index in YAG
WebApr 11, 2024 · Good surface morphology by enhancing the silicon wafer surfaces is very necessary due to the high refractive index of crystalline silicon (η = 3.4 at 550 nm) in the solar spectrum region of 300-1100 nm ... size, density, and depth. The pulsed Nd:YAG laser also enables the adjustment of a number of laser process parameters, including lamp ... WebDec 1, 2024 · The nonlinear refractive index of Yb:YAG ceramic was found to be ~3.8 × 10 −20 m 2 /W, which is not sensitive to the Yb 3+ doping concentration and incident laser … 首 鳴らす 寿命
Reflectance spectra and refractive index of a Nd:YAG laser …
WebThe thermal expansion coefficient and dn/dT are measured by interferometry techniques in undoped YAG below 300 K. The thermal expansion coefficient at 125 K is measured to be 2.70 × 10-6 K-1 and dn/dT at 633 nm is 2.5 × 10-6 K-1, compared with 7 × 10-6 K-1 and 9 × 10-6 K-1 for these quantities at 300 K. Web23 rows · YAG (Yttrium aluminium oxide Y 3 Al 5 O 12) is an active laser crystal when dopants such as Nd, ... WebRefractive Index: 1.83 (@ 632.8 nm) Crystal Phase / Structure: Cubic: Specific Heat: 0.59 J/g·K: Tensile Strength: 2 Gpa: Thermal Conductivity: 11.2W/m·K: Thermal Expansion: ... YAG crystals with dopant concentrations ranging from 0.2-30% Yb in various dimensions and orientations in both coated and uncoated forms. Please request a quote above ... 首 鳴らす やめる方法