ZGP(ZnGeP2) Crystals
Zinc Germanium Phosphide (ZGP) crystals possess large nonlinear coefficients (d36=75pm/V). Our ZGP has wide infrared transparency range(0.75-12μm), useful transmission from 1.7um. ZGP also shows high thermal conductivity(0.35W/(cm·K)), high laser damage threshold (2-5J/cm2)and well machining property.
ZnGeP2 (ZGP) crystal is called the king of infrared nonlinear optical crystals and it is still the best frequency conversion material for high power, tunable infrared laser generation. DIEN TECH offers high optical quality and large diameter ZGP crystals with extremely low absorption coefficient α < 0.02 cm-1(at pump wavelengths 2.0-2.1 µm). These properties enable ZGP crystals to be used to generate mid-infrared tunable laser with high efficiency through OPO or OPA processes.
DIEN TECH provides two types of ZnGeP2 crystal, C-ZGP and YS-ZGP. YS-ZGP shows lower absorption at 2090nm than C-ZGP. C-ZGP absorption coefficient at 2090nm <0.05cm-1 while YS-ZGP absorption coefficient at 2090nm <0.02cm-1 . C-ZGP grew by vertical method while YS-ZGP grew by horizontal method. Also, YS-ZGP shows better homogeneity and output efficiency as well.
Applications of ZGP:
• Second, third, and fourth harmonic generation of CO2-laser.
• Optical parametric generation with pumping at a wavelength of 2.0 µm.
• Second harmonic generation of CO-laser.
• YS-ZGP are typical material for THz range from 40.0 µm to 1000 µm, pumped by 1um.
• Generation of combined frequencies of CO2- and CO-lasers radiation and other lasers are working in the crystal transparency region.
Custom orientations of our ZGP crystals are available on request.
|
Basic Properties |
|
| Chemical | ZnGeP2 |
| Crystal Symmetry and Class | Tetragonal, -42m |
| Lattice Parameters | a = 5.467 Å |
| c = 12.736 Å | |
| Density | 4.162 g/cm3 |
| Mohs Hardness | 5.5 |
| Optical Class | Positive uniaxial |
| Userful Transmission Range | 2.0 um – 10.0 um |
| Thermal Conductivity @ T= 293 K | 35 W/m∙K (⊥c) 36 W/m∙K ( ∥ c) |
| Thermal Expansion @ T = 293 K to 573 K | 17.5 x 106 K-1 (⊥c) 15.9 x 106 K-1 ( ∥ c) |
| Technical Parameters | |
| Surface flatness | PV<ʎ/8@632.8nm |
| Surface quality S-D | 20-10 |
| Wedge/Parallelism error | <30 arc sec |
| Perpendicularity | <5 arc min |
| Transparency range | 0.75 – 12.0 |
| Non-linear coefficient | d36= 68.9 (at 10.6 um),d36= 75.0 (at 9.6 um) |
|
Model |
Product |
Size |
Orientation |
Surface |
Mount |
Quantity |
|
BMB000003 |
ZnGeP2 |
6*6*20mm |
θ=54.7°φ=0° |
Blank |
|
10 |
|
BMB000058 |
ZnGeP2 |
4*4*25mm |
θ=90°φ=45° |
Blank |
|
1 |
|
BMB000060 |
ZnGeP2 |
5*5*3.2mm |
θ=51° φ=0° |
Blank |
|
2 |
|
BMB000061 |
ZnGeP2 |
5*5*4.2mm |
θ=51° φ=0° |
Blank |
|
3 |
|
BMB000122 |
ZnGeP2 |
6*8*20mm |
θ=54°φ=0° |
Blank |
|
5 |
|
BMB000123 |
ZnGeP2 |
1*6*10mm |
θ=59.6°φ=0° |
Blank |
|
1 |
|
BMB000124 |
ZnGeP2 |
1*6*10mm |
θ=48.4°φ=0° |
Blank |
|
1 |
|
BMB000125 |
ZnGeP2 |
5*5*1mm |
θ=51°φ=0° |
Blank |
|
3 |
|
BMB000133 |
ZnGeP2 |
5*5*2.5mm |
θ=50°φ=0° |
Blank |
|
1 |
|
BMB000134 |
ZnGeP2 |
5*5*3.5mm |
θ=50°φ=0° |
Blank |
|
1 |
|
BMB000190 |
ZnGeP2 |
6*6*25mm |
θ=50.4°φ=0° |
Blank |
|
6 |
|
BMB000254 |
ZnGeP2 |
8*8*15mm |
θ=54.7°，φ=0° |
Blank |
|
2 |
|
BMB000271 |
ZnGeP2 |
5*5*1.5mm |
θ=51° φ=0° |
Blank |
|
2 |
|
BMB000272 |
ZnGeP2 |
5*5*1mm |
θ=53° φ=0° |
Blank |
|
3 |
|
BMB000282 |
ZnGeP2 |
6*6*15mm |
θ=56.5°；φ=0° |
Blank |
|
2 |
|
BMB000283 |
ZnGeP2 |
6*6*12mm |
θ=59.6°φ=0° |
Blank |
|
1 |
|
BMB000296 |
ZnGeP2 |
10*10*1mm |
<110> |
Blank |
|
1 |
|
BMB000297 |
ZnGeP2 |
10*10*2mm |
<110> |
Blank |
|
1 |
|
BMB000298 |
ZnGeP2 |
10*10*3mm |
<110> |
Blank |
|
5 |
|
BMB000299 |
ZnGeP2 |
10*10*2mm |
<012> |
Blank |
|
7 |
|
BMB000300 |
ZnGeP2 |
10*10*3mm |
<012> |
Blank |
|
2 |
|
BMB000303 |
ZnGeP2 |
6*6*1mm |
θ=66° φ=0° |
Blank |
|
2 |
|
BMB000314 |
ZnGeP2 |
6*6*15mm |
θ=60.8° φ=0° |
Blank |
|
1 |
|
BMB000317 |
ZnGeP2 |
25*25*35mm |
θ=56.2° φ=0° |
Blank |
|
1 |
|
BMB000323 |
ZnGeP2 |
6*6*20mm |
θ = 53.8° φ = 0° |
Blank |
|
1 |
|
BMP000062 |
ZnGeP2 |
6*6*25mm |
θ=50.4°φ=0° |
Polished; uncoated |
|
1 |
|
BMP000073 |
ZnGeP2 |
6*6*20mm |
θ=56.8°φ=0° |
Polished; uncoated |
|
2 |
|
BMP000079 |
ZnGeP2 |
6*8.5*0.035mm |
θ=48.4°φ=0° |
Polished; uncoated |
|
1 |
|
BMP000080 |
ZnGeP2 |
6*6*30mm |
θ=54.7°φ=0° |
Polished; uncoated |
|
3 |
|
BMP000091 |
ZnGeP2 |
6*6*20mm |
θ=59°φ=0° |
Polished; uncoated |
|
1 |
|
BMP000144 |
ZnGeP2 |
5*5*1mm |
θ=51° φ=0° |
Polished; uncoated |
|
6 |
|
BMP000206M |
ZnGeP2 |
10*10*1mm |
<110> |
Polished; uncoated |
Mounted |
3 |
|
BMP000413 |
ZnGeP2 |
6*8*20mm |
θ=54.0°,φ=0° |
Polished; uncoated |
|
1 |
|
BMP000442M |
ZnGeP2 |
10*10*0.1mm |
<110> |
Polished; uncoated |
Mounted |
3 |
|
BMP000443M |
ZnGeP2 |
10*10*0.5mm |
<110> |
Polished; uncoated |
Mounted |
7 |
|
BMP000446 |
ZnGeP2 |
12*12*15mm |
θ=54.7°φ=0° |
Polished; uncoated |
|
1 |
|
BMP000463 |
ZnGeP2 |
6*8*20mm |
θ=60°φ=0° |
Polished; uncoated |
|
2 |
|
BMP000511 |
ZnGeP2 |
6*6*0.5mm |
θ=66° φ=0° |
Polished; uncoated |
|
1 |
|
BMP000640 |
ZnGeP2 |
5*4.7*25mm |
θ=54.9°φ=0° |
Polished; uncoated |
|
1 |
|
BMP000678 |
ZnGeP2 |
5*8*25mm |
θ=52.1°φ=0° |
Polished; uncoated |
|
4 |
|
CM000016 |
ZnGeP2 |
6*6*25mm |
θ=50.5°φ=0° |
AR/AR@2090nm(R<0.25%)+3-5um(R<1%) |
|
1 |
|
CM000017 |
ZnGeP2 |
6*6*30mm |
θ=54.5°φ=0° |
AR/AR@2.1um+3-5um |
|
2 |
|
CM000018 |
ZnGeP2 |
6*6*30mm |
θ=54.7°φ=0° |
AR/AR@2090nm+3~5μm |
|
3 |
|
CM000019 |
ZnGeP2 |
6*6*20mm |
θ=54.7°φ=0° |
AR/AR@2090nm(R<0.25%)+3-5um(R<1%) |
|
2 |
|
CM000028 |
ZnGeP2 |
6*6*25mm |
θ=57.5°φ=0° |
AR/AR@2.1um+3-5um |
|
1 |
|
CM000029 |
ZnGeP2 |
6*8*15mm |
θ=54°φ=0° |
AR/AR@2090nm(R<0.25%)+3-5um(R<1%) |
|
1 |
|
CM000030 |
ZnGeP2 |
12*12*15mm |
θ=54.7°φ=0° |
AR/AR@2090nm+3~5μm |
|
1 |
|
CM000068 |
ZnGeP2 |
8*8*20mm |
θ=54.7°φ=0° |
AR/AR@2090nm(R<0.25%)+3-5um(R<1%) |
|
1 |
|
CM000081M |
ZnGeP2 |
15*15*1.5mm |
θ=48.6°φ=0° |
AR/AR@2-3.3μm(R<2%)+7-12μm(R<5%) |
Mounted |
1 |
|
CM000082 |
ZnGeP2 |
15*15*2.5mm |
θ=48.6°φ=0° |
AR/AR@2-3.3μm(R<2%)+7-12μm(R<5%) |
|
1 |
|
CM000083 |
ZnGeP2 |
15*15*0.5mm |
θ=48.6°φ=0° |
AR/AR@1.8-3.5um+5-11um |
|
2 |
|
CM000084M |
ZnGeP2 |
15*15*1mm |
θ=48.6°φ=0° |
AR/AR@1.8-3.5um+5-11um |
Mounted |
1 |
|
CM000088 |
ZnGeP2 |
8*8*4mm |
θ=57.5°φ=0° |
AR/AR@1.7-3um+5-13um |
|
2 |
|
CM000190 |
ZnGeP2 |
6*6*5mm |
θ=48°φ=0° |
AR/AR@2-3um+5-9um |
|
1 |
|
CM000206 |
ZnGeP2 |
6*6*15mm |
θ=54.7°φ=0° |
AR/AR@2.1um+3-5um |
|
3 |
|
CM000226 |
ZnGeP2 |
6*6*27mm |
θ=50.11°φ=0° |
AR/AR@2.09+2.8+8um |
|
1 |
|
CM000227 |
ZnGeP2 |
6*6*27mm |
θ=50.5°φ=0° |
AR/AR@2.09+2.8+8um |
|
1 |
|
CM000228 |
ZnGeP2 |
6*6*27mm |
θ=51.2°φ=0° |
AR/AR@2.09+2.8+8um |
|
1 |
|
CM000255 |
ZnGeP2 |
6*6*40mm |
θ=54.7°φ=0° |
AR/AR@2.1μm+3-5μm |
|
1 |
|
CM000261 |
ZnGeP2 |
5*5*20mm |
θ=67°φ=0° |
AR/AR@5um+10um |
|
1 |
|
CM000336 |
ZnGeP2 |
8*8*4mm |
θ=57.5°φ=0° |
S1:AR@1.3-2.6um S2:AR@3.5-10um |
|
3 |
|
CM000337 |
ZnGeP2 |
8*8*1mm |
θ=57.5°φ=0° |
S1:AR@1.3-2.6um S2:AR@3.5-10um |
|
2 |
|
CM000565 |
ZnGeP2 |
8*8*7.5mm |
θ=57.5°φ=0° |
AR/AR@1.7-3um+5-13um |
|
1 |
|
CM000586 |
ZnGeP2 |
7*7*20mm |
θ=62°φ=0° |
AR/AR@1.8-4.2um |
|
1 |
|
CM000621 |
ZnGeP2 |
8*6*8.5mm |
θ=55°φ=0° Type I |
AR/AR@2.09um(R<0.5%)+3.5-5um(R<1%) |
|
1 |
|
CM000675 |
ZnGeP2 |
6*6*25mm |
θ=50.4°φ=0° |
AR/AR@2090+2800+8um |
|
1 |
|
CM000751 |
ZnGeP2 |
6*8*20mm |
θ=60°φ=0° |
AR/AR@1938+3000-5000nm |
|
1 |
|
CM000799 |
ZnGeP2 |
6*6*20mm |
θ=56.2°φ=0° |
AR/AR@1.9μm-2.1μm+3.8μm-4.5μm |
|
1 |
|
CM000912 |
ZnGeP2 |
6*6*20mm |
θ=55 °, φ=0° |
AR/AR@2.05µm+3-5µm |
|
1 |
|
CM000948 |
ZnGeP2 |
6*6*15mm |
θ=56.5°φ=0° |
AR/AR@2050+3500-5000nm |
|
1 |
|
CM000949 |
ZnGeP2 |
6*6*12mm |
θ=59.6°φ=0° |
AR/AR@1925-1945+1975-1995+3500-4500nm |
|
1 |
|
CM000982 |
ZnGeP2 |
5*5*0.25mm |
θ=51°Φ=0° Type Ⅰ |
S1:AR@1000-4000nm S2:AR@1500-12000nm |
|
4 |
|
CM000983 |
ZnGeP2 |
5*5*0.5mm |
θ=51°Φ=0° Type Ⅰ |
S1:AR@1000-4000nm S2:AR@1500-12000nm |
|
4 |
|
CM000984 |
ZnGeP2 |
5*5*1mm |
θ=51°Φ=0° Type Ⅰ |
S1:AR@1000-4000nm S2:AR@1500-12000nm |
|
1 |
|
CM000985 |
ZnGeP2 |
5*5*1mm |
θ=51°Φ=0° Type Ⅰ |
S1:AR@1000-3500nm S2:AR@3000-12000nm |
|
1 |
|
CM000986 |
ZnGeP2 |
5*5*1.5mm |
θ=51°Φ=0° Type Ⅰ |
S1:AR@1000-3500nm S2:AR@3000-12000nm |
|
1 |
|
CM001019 |
ZnGeP2 |
6*6*25mm |
θ=54.9°φ=0° |
AR/AR@2.09μm+3.8-4.6μm |
|
1 |
|
CM001058 |
ZnGeP2 |
6*6*20mm |
θ=54.7°φ=0° |
AR/AR@2.1+3-5um |
|
1 |
|
CM001125 |
ZnGeP2 |
6*6*20mm |
θ = 53.8° ; φ = 0° |
AR/AR@2-2.1μm (R<0.25%)+5.8-6.8μm (R<1%) |
|
1 |
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