SHG phase matching in GaSe and mixed GaSe1(1-x)S(x), x < or =0.412, crystals at room temperature.

The optical properties of p-type GaSe and mixed GaSe(1-x)S(x), x=0.04, 0.023, 0.090, 0.133, 0.175, 0.216, 0.256, 0.362, 0.369, and 0.412, crystals were studied to reveal the potentials for phase matching and frequency conversion. Comparative experiment on Er3+:YSGG and CO2 laser SHG at identical experimental conditions is carried out at room temperature. Any change in polytype structure of GaSe1(1-x)S(x) was not found.

[1]  N. I. Chapliev,et al.  Efficient generation of the second harmonic of CO2 laser radiation in a GaSe crystal , 1989 .

[2]  Konstantin L. Vodopyanov,et al.  New dispersion relationships for GaSe in the 0.65–18 μm spectral region , 1995 .

[3]  Yoshiro Sasaki,et al.  Polytypes and Excitons in GaSe 1-x S x Mixed Crystals , 1980 .

[4]  Victor V. Atuchin,et al.  Growth, real structure and applications of GaSe1−xSx crystals , 2006 .

[5]  Lothar Kador,et al.  Second-Harmonic Generation in GaS Crystals , 1997 .

[6]  N. Fernelius,et al.  Properties of gallium selenide single crystal , 1994 .

[7]  Phase‐matched second‐harmonic generation at 789.5 nm in a GaSe crystal , 1996 .

[8]  J. C. Irwin,et al.  Indices of refraction of GaS and GaSe , 1976 .

[9]  D. Suhre,et al.  Far-infrared conversion materials: Gallium selenide for far-infrared conversion applications , 1998 .

[10]  Generation properties of coherent infrared radiation in the optical absorption region of GaSe crystal. , 2006, Optics express.

[11]  D R Suhre,et al.  Improved crystal quality and harmonic generation in GaSe doped with indium. , 1997, Optics letters.

[12]  Yaochun Shen,et al.  Optical properties of GaSe andGaSxSe1−xmixed crystals , 1976 .

[13]  Y. Andreev,et al.  Modified GaSe crystal as a parametric frequency converter , 2006 .

[14]  Kerim R. Allakhverdiev,et al.  BRIEF COMMUNICATIONS: Investigation of linear and nonlinear optical properties of GaSxSe1-x crystals , 1982 .

[15]  Wei Shi,et al.  A monochromatic and high-power terahertz source tunable in the ranges of 2.7–38.4 and 58.2–3540 μm for variety of potential applications , 2004 .

[16]  G. A. Akhundov,et al.  Optical Absorption, Reflection, and Dispersion of GaS and GaSe Layer Crystals , 1966 .

[17]  Ching-Hwa Ho,et al.  Crystal structure and electronic structure of GaSe1−xSx series layered solids , 2005 .

[18]  Kiyoshi Katō,et al.  Temperature Phase-Matching Properties for Harmonic Generation in GaSe , 1999 .

[19]  A. M. Prokhorov,et al.  LETTERS TO THE EDITOR: Parametric conversion of infrared radiation in a GaSe crystal , 1975 .