英文名称： THz Crystals
有机太赫兹晶体
新势力光电供应有机太赫兹晶体，包括：DAST、OH1、DSTMS。该系列THz太赫兹晶体具有如下特点：非线性光学系数大、光电系数大、光电响应快、晶体品质高、1.2-1.6μm泵浦波长优化、700-800nm泵浦波段可选，广泛应用于：光整流太赫兹发生器、非线性光学差频太赫兹发生器、太赫兹探测器。
THz Frequency Ranges for Generator Materials
Spectal Bandwidth(measured by Rainbow Photonics instruments)
THz Frequency Range for Different Pump Pulsewidth
| Physical Properties | DAST Crystal |
| DAST: 4-N,N-dimethylamino-4’-N’-methyl-stilbazolium tosylate | |
| Phase matching for THz Generation | 720-1650nm |
| Efficient THz generation and detection | 0.3-16THz |
| Melting point | 256℃ |
| Refractive indices | n1(720nm)=2.519 |
| n2(720nm)=1.720 | |
| n3(720nm)=1.635 | |
| Nonlinear optical coefficients | d11(1318nm) = 1010pm/V |
| d11(1542nm)=290pm/V | |
| d26(1542nm)=39pm/V | |
| Electro optic coefficients | r11(720nm)=92pm/V |
| r11(1313nm)=53pm/V | |
| r11(1535nm)=47pm/V | |
| Physical Properties | OH1 Crystal |
| OH1: (2-(3-(4-Hydroxystyryl)-5,5-dimethylcyclohex-2-enylidene)malononitrile) | |
| Phase matching for THz Generation | 1200-1460nm |
| Efficient THz generation and detection | 0.1-10THz |
| Melting point | 212℃ |
| Refractive indices | n2(1319nm)=1.58 |
| n3(1319nm)=2.15 | |
| Nonlinear optical coefficients | d333(1900nm)=120±10pm/V |
| d223(1900nm)=13±2pm/V | |
| d322(1900nm)=8.5±2pm/V | |
| Electro optic coefficients | r333(633nm)=109±4pm/V |
| r333(785nm)=75±7pm/V | |
| r333(1064nm)=56±2pm/V | |
| r333(1319nm)=52±7pm/V | |
| Physical Properties | DSTMS Crystal |
| DSTMS: 4-N,N-dimethylamino-4’-N’-methyl-stilbazolium 2,4,6-trimethylbenzenesulfonate | |
| Phase matching for THz Generation | 720-1650nm |
| Efficient THz generation and detection | 0.3-16THz |
| Melting point | 250℃ |
| Refractive indices | n1(1550nm)=2.07 |
| n2(1550nm)=1.64 | |
| Nonlinear optical coefficients | d111(1900nm)=214±20pm/V |
| d122(1900nm)=31±4 pm/V | |
| d212(1900nm)=35±4pm/V | |
| Electro optic coefficient | r111(1900nm)=37±3 pm/V |
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