Magnetooptic rotation and thermal expansion of AgGaGeS4 crystals

Abstract

We have studied experimentally Faraday effect and thermal expansion for AgGaGeS 4 crystals. The Verdet constant F V and the effective Faraday coefficient ' 11 6 1 33 (5.63 0.36) 10 K      . They are temperature-independent at 300-600 K.

Investigation of the Thermal Properties and Crystal Growth of the Nonlinear Optical Crystals AgGaS2 and AgGaGeS4

“…These results are slightly different from the values reported by Adamenko, i.e. α 11 = 2.51 × 10 –6 K –1 , α 22 = 3.98 × 10 –6 K –1 , and α 33 = 5.63 × 10 –6 K –1 , which indicates that the AgGaGeS 4 crystal has a stronger thermal expansion anisotropy.…”

“…Up to now, studies on AgGaGeS 4 crystals have almost always focused on single-crystal growth and optical and nonlinear optical properties; 28 thus there are few reports on the thermodynamics of AgGaGeS 4 crystals. Only Adamenko measured the thermal expansion of AgGaGeS 4 and found that the thermal expansion coefficients are independent of temperature in the range of 300−600 K. 29 Therefore, there has been no in-depth analysis of the thermal expansion mechanism and discussion about the influence of the thermal expansion on the crystal growth.…”

Polycrystal Synthesis, Crystal Growth, Structure, and Optical Properties of AgGaGenS2(n+1) (n = 2, 3, 4, and 5) Single Crystals for Mid-IR Laser Applications

“…The new ternary and quaternary chalcogenides are gradually approved as promising materials for its NLO properties and the transparent region which can be modulated with the composition. − AgGaGeS 4 crystal is just one of the solid solution crystal AgGaS 2 – n GeS 2 ( n = 1) and becomes a popular research subject. , It has a high nonlinear optical coefficient ( d 31 = 15 pm/V), a wide transmission range (0.5–11.5 μm), and a low residual absorption coefficient (0.05 cm –1 at 1.064 μm), which make it a promising material for frequency-shifting 1.064 μm Nd:YAG laser into the range of 4–11 μm. − However, the other AgGaS 2 – n GeS 2 ( n = 2, 3, 4, and 5) crystals, i.e., AgGaGe 2 S 6 , AgGaGe 3 S 8 , AgGaGe 4 S 10 and AgGaGe 5 S 12 , which are rarely reported, also have the comparable NLO properties. The nonlinear optical coefficients of AgGaGe 3 S 8 and AgGaGe 4 S 10 crystal are d 31 = 13.65 and 13.8 pm/V, respectively, which are very close to that of AgGaGeS 4 .…”

“…6−14 AgGaGeS 4 crystal is just one of the solid solution crystal AgGaS 2 −nGeS 2 (n = 1) and becomes a popular research subject. 15,16 It has a high nonlinear optical coefficient (d 31 = 15 pm/V), a wide transmission range (0.5− 11.5 μm), and a low residual absorption coefficient (0.05 cm −1 at 1.064 μm), which make it a promising material for frequency-shifting 1.064 μm Nd:YAG laser into the range of 4−11 μm. 17−21 However, the other AgGaS 2 −nGeS 2 (n = 2, 3, 4, and 5) crystals, i.e., AgGaGe 2 S 6 , AgGaGe 3 S 8 , AgGaGe 4 S 10 and AgGaGe 5 S 12 , which are rarely reported, also have the comparable NLO properties.…”