New Data on the Nonlinear Optical Constant,   Phase-Matching,  and Optical Damage of AgGaS<sub> 2</sub>

Harasaki, Akiko; Kimura, Kiyoshi

doi:10.1143/jjap.36.700

Cited by 245 publications

(181 citation statements)

References 20 publications

Supporting

Mentioning

171

Contrasting

Order By: Relevance

“…The 5 times larger thermal conductivity of LIS as compared to AGS certainly favors the use of LIS in intra-cavity cw applications. Under similar nanosecond pulsed regime, however, the ∼ 1 J/cm 2 damage threshold measured with LIS is comparable to the threshold found for AGS or AGSe [93,94]. Independent measurements at longer wavelengths (9.55 µm) with 30 ns long pulses yielded, under identical experimental conditions, damage thresholds of 6.5 J/cm 2 for LIS [57] and 5.5 J/cm 2 and 4.2 J/cm 2 for AGS and AGSe, respectively [95].…”

Section: B Continuous-wave Mid-ir Dfgsupporting

confidence: 69%

Optical, vibrational, thermal, electrical, damage, and phase-matching properties of lithium thioindate

et al. 2004

View full text Add to dashboard Cite

Lithium thioindate (LiInS2) is a new nonlinear chalcogenide biaxial material transparent from 0.4 to 12 µm, that has been successfully grown in large sizes and good optical quality. We report on new physical properties that are relevant for laser and nonlinear optics applications. With respect to AgGaS(e)2 ternary chalcopyrite materials, LiInS2 displays a nearly-isotropic thermal expansion behavior, a 5-times larger thermal conductivity associated with high optical damage thresholds, and an extremely low intensity-dependent absorption allowing direct high-power downconversion from the near-IR to the deep mid-IR. Continuous-wave difference-frequency generation (5-11 µm) of Ti:sapphire laser sources is reported for the first time.

show abstract

Section: B Continuous-wave Mid-ir Dfgsupporting

confidence: 69%

Optical, vibrational, thermal, electrical, damage, and phase-matching properties of lithium thioindate

et al. 2004

View full text Add to dashboard Cite

show abstract

“…The solid line in Fig. 4 was simulated tuning curve based on the Sellmeier's equation in [12], which gave the best agreement with our experimental data. The damage on the cavity mirror were seen when we attempted for wider wavelength.…”

supporting

confidence: 61%

3–5 μm AgGaS2 optical parametric oscillator with prism cavity

Wang

Zhang

et al. 2009

Laser Phys.

View full text Add to dashboard Cite

1 Tunable mid-infrared laser sources operating at the transparency windows of 3-5 µ m in the atmosphere are more and more important for applications in laser remote sensing, laser target detecting, spectra analysis, atmospheric environment monitoring, space communication and applications in military. There are two effective methods to generate it: second harmonic generation (SHG) of CO 2 laser [1, 2] and optical parametric oscillator (OPO) [3][4][5][6][7][8][9][10]. The former has the limited tuning range at the atmospheric window, which is due to the limited tunable range of CO 2 laser. The latter is an effective tool to cover the 3-5 µ m range. Mid-infrared OPO especially pumped by around 1 µ m wavelength (such as Nd:YAG, Nd:YLF, Yb:YAG lasers) is more and more important with the development of growth technology of nonlinear crystals. The most important reason is that commercial Nd or Yb lasers, as a pumping source, have high output energy and good beam quality, which are widely distributed and used in mobile systems with compact design. In order to cover the ultra-broadband range of 3-5 µ m, the nonlinear crystal in OPO is required to have the large optical transmission and can be phase matched around 1 µ m. By far, commercial negative silver thiogallate crystal is one of the few crystals which can be pumped by commercially available 1.064 µ m Nd:YAG laser to achieve phase-matched down-conversion into the λ > 5 µ m region. AgGaS 2 (AGS) crystal has high nonlinear optical coefficient and high optical transmission from 0.5-12.0 µ m, which makes it realistic to generate infrared parametric radiation. That is why numerous experiments with one or multistage OPO/OPG pumped by ns and ps IR dye, Nd:YAG and another near IR solid state 1 The article is published in the original. lasers, so as by femtosecond Ti:sapphire and Cr:forsterite lasers, are carried out during last decade. Comparing with optical parametric superfluorescence, ultra-broadband tunable, mid-infrared OPO is a more challenging work due to the difficulty on its fabrication of ultrabroadband reflectivity coating.In this paper, the presented setup is a simplified version of our earlier one [7]. A coated prism as the output coupling device of OPO was used to replace the common cavity mirror. It was also functionalized a filter to separate the pump and ultra-broadband tunable idler at the same time. The problem on ultra-broadband reflectivity coating has been avoided. AgGaS 2 type-I singly resonant optical parametric oscillator (SRO OPO) with prism cavity pumped by a ns 1.064 µ m Nd:YAG laser was demonstrated experimentally. The ultra-wide tuning 2.35 to 5.27 µ m and maximum output energy 0.58 mJ per pulse at idle light were obtained.Due to the relatively low damage threshold of AGS crystal, how to lower the pump threshold was considered firstly. Threshold pump energy density is mainly determined as a function of cavity length, crystal physical length, pump spot size, pump pulse width as we discussed previously [7,11]. The influence of the parameters on th...

show abstract

“…Such values are smaller than that of benchmark AGS (E g = 2.56 eV), 22 but still comparable to those of other commercial MFIR NLO materials, for instance, chalcopyrite-type semiconductors AgGaSe 2 (E g = 1.75 eV) 6 and ZnGeP 2 (E g = 1.65 eV). 7 As shown in Fig. 6c and d, results of TG and DTA measurements indicate that the compounds are thermally stable up to 1174 K for compound 1 and 1106 K for compound 2 under nitrogen atmosphere.…”

Section: Optical Properties and Thermal Stabilitiesmentioning

confidence: 73%

Experimental and theoretical studies on the NLO properties of two quaternary non-centrosymmetric chalcogenides: BaAg₂GeS₄and BaAg₂SnS₄

Chen

Liu

et al. 2018

Dalton Trans.

View full text Add to dashboard Cite

New middle and far-infrared (MFIR) nonlinear optical (NLO) chalcogenides have been receiving increasing attention for their great importance in military and civil fields. In addition, the current challenge in the efforts for identifying a promising MFIR NLO material lies in achieving simultaneously large second-harmonic generation (SHG) intensity and high laser-induced damage threshold (LIDT) in the same material.In this study, two quaternary non-centrosymmetric (NCS) sulfides, BaAg 2 GeS 4 (1) and BaAg 2 SnS 4 (2), were synthesized from a high-temperature solid-state reaction using BaCl 2 flux in evacuated closed silica tubes. Although 1 and 2 show identical stoichiometry, they crystallize in different NCS space groups, tetragonal I42m (no. 121) and orthorhombic I222 (no. 23), respectively, based on the results of crystal structure solution. In their structures, highly distorted AgS 4 tetrahedra interconnect together via corner-sharing to form two-dimensional (2D) layers, which are further bridged with isolated GeS 4 or SnS 4 units to produce a three-dimensional (3D) framework structure with Ba cations lying in the tunnels. Remarkably, they not only possess phase-matchable (PM) abilities but also exhibit a good balance between strong SHG responses (1.7× and 0.4× AgGaS 2 ) and high LIDTs (3.2× and 1.5× AgGaS 2 ). Moreover, theoretical calculations based on density functional theory (DFT) methods have aided the understanding of energy bands, electronic structures, and linear and NLO properties.

show abstract

New Data on the Nonlinear Optical Constant, Phase-Matching, and Optical Damage of AgGaS₂

Cited by 245 publications

References 20 publications

Optical, vibrational, thermal, electrical, damage, and phase-matching properties of lithium thioindate

Optical, vibrational, thermal, electrical, damage, and phase-matching properties of lithium thioindate

3–5 μm AgGaS2 optical parametric oscillator with prism cavity

Experimental and theoretical studies on the NLO properties of two quaternary non-centrosymmetric chalcogenides: BaAg₂GeS₄and BaAg₂SnS₄

Contact Info

Product

Resources

About

New Data on the Nonlinear Optical Constant, Phase-Matching, and Optical Damage of AgGaS 2

Cited by 245 publications

References 20 publications

Optical, vibrational, thermal, electrical, damage, and phase-matching properties of lithium thioindate

Optical, vibrational, thermal, electrical, damage, and phase-matching properties of lithium thioindate

3–5 μm AgGaS2 optical parametric oscillator with prism cavity

Experimental and theoretical studies on the NLO properties of two quaternary non-centrosymmetric chalcogenides: BaAg2GeS4and BaAg2SnS4

Contact Info

Product

Resources

About

New Data on the Nonlinear Optical Constant, Phase-Matching, and Optical Damage of AgGaS₂

Experimental and theoretical studies on the NLO properties of two quaternary non-centrosymmetric chalcogenides: BaAg₂GeS₄and BaAg₂SnS₄