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AgGaS2 - Nonlinear Optical Infrared Crystals

Tsanangudzo Pfupi

AGS iri pachena kubva 0.53 kusvika 12 µm.Kunyange zvazvo nonlinear optical coefficient iri yakaderera pakati peakataurwa infrared crystals, high short wavelength transparency edging pa550 nm inoshandiswa mumaOPO anopombwa neNd:YAG laser;mune akawanda mutsauko frequency kusanganisa kuedza ne diode, Ti: Sapphire, Nd: YAG uye IR dhayi lasers inovhara 3-12 µm renji;mune yakananga infrared countermeasure masisitimu, uye yeSHG yeCO2 laser.


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Product Description

Thin AgGaS2 (AGS) mahwendefa ekristaro akakurumbira kune ultrashort pulse chizvarwa pakati peIR renji nemusiyano frequency chizvarwa chinoshandisa NIR wavelength pulses.

Applications

● Generation yechipiri harmonics pamusoro CO uye CO2 - lasers
● Optical parametric oscilator
● Different frequency generator kusvika pakati infrared regions kusvika 12 mkm.
● Frequency kusanganisa pakati IR nharaunda kubva 4.0 kusvika 18.3 µm
● Tuneable solid state lasers (OPO inopomba neNd: YAG nemamwe ma lasers anoshanda mu1200 kusvika 10000 nm mudunhu nekubudirira 0.1 kusvika 10%)
● Optical nhete-bhendi mafirita munzvimbo iri padyo neisotropic point (0.4974 m pa300 °K), bhendi rekutumira riri kugadziridzwa pakusiyana kwetembiricha.
● Up-shanduko yeCO2 laser radiation image kuva pedyo-IR kana nharaunda inooneka nekushandisa/kana kushandisa Nd:YAG, ruby ​​kana dhayi lasers nekubudirira kusvika 30%

Features

● Kutumira mu 0.25-5.0 mm, hapana kupinza mu 2-3 mm
● High thermal conductivity
● High index of refraction uye Non-birefringence

Basic Properties

Crystal Structure Tetragonal
Sero Parameters a=5.992 Å, c=10.886 Å
Melting Point 851 °C
Density 5.700 g/cm3
Mohs Kuoma 3-3.5
Absorption Coefficient <0.05 cm-1 @ 1.064 µm
<0.02 cm-1 @ 10.6 µm
Relative Dielectric Constant @ 25 MHz ε11s=10.5 ε11t=12.0
Thermal Kuwedzera Coefficient ||C: -8.1 x 10-6 /°C
⊥C: +19.8 x 10-6 /°C
Thermal Conductivity 1.0 W/M/°C

Linear Optical Properties

Transparency Range 0.50-13.2 um
Refractive Indices no ne
@ 1.064 um 2.4521 2.3990
@5.300 um 2.3945 2.3408
@10.60um 2.3472 2.2934
Thermo-Optic
Coefficients
dno/dt=15.4 x 10-5/°C
dne/dt=15.5 x 10-5/°C
Sellmeier Equations (ʎ in um) no2=3.3970+2.3982/(1-0.09311/ʎ2)
+2.1640/(1-950/ʎ2)
ne2=3.5873+1.9533/(1-0.11066/ʎ2)
+2.3391/(1-1030.7/ʎ2)

Nonlinear Optical Properties

Phase-Matching SHG Range 1.8-11.2 um
NLO Coefficients @ 1.064 um d36=d24=d15=23.6 pm/V
Linear Electro-optic
Coefficients
Y41T=4.0 pm/V
Y63T=3.0 pm/V
Kukuvadza chikumbaridzo @ ~ 10 ns, 1.064 um 25 MW/cm2(pamusoro), 500 MW/cm2(yakawanda)

Basic Parameters

Wavefront distortion isingasviki λ/6 @ 633 nm
Dimension kushivirira (W +/-0.1 mm) x (H +/-0.1 mm) x (L +0.2 mm/-0.1 mm)
Aperture yakajeka > 90% yepakati nzvimbo
Flatness λ/6 @ 633 nm yeT>=1.0mm
Surface Quality Kukwenya/kuchera 20/10 pa
MIL-O-13830A
Parallelism nani pane 1 arc min
Perpendicularity 5 arc maminitsi
Angle tolerance Δθ < +/-0.25o,
Δφ < +/-0.25o

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