Material | Spectral range (um) | Transmission efficiency, % (k1) ; (k2) | Degree of polarisation, % (k1-k2) / (k1+k2) | Extinction ratio (k1/2k2) | Contrast ratio (k1/k2) | Type |
KRS-5 | 2-35 microns | (k1>75%; k2<0,7%)@3um ; (k1>71%; k2<0,3%)@15um | 98,2%@3um ; 99,2%@15um | 54:1@3um ; 118:1@15um | 108:1@3um ; 236:1@15um | Holographic |
CaF2 | 1-10 microns | (k1>85%; k2<0,7%)@3um ; (k1>80%; k2<0,24%)@8um | 98,4%@3um ; 99,4%@8um | 61:1@3um ; 165:1@8um | 122:1@3um ; 330:1@8um | Holographic |
BaF2 | 1-13 microns | (k1>85%; k2<0,58%)@3um ; (k1>85%; k2<0,23%)@10um | 98,6%@3um ; 99,5%@10um | 73:1@3um ; 185:1@10um | 146:1@3um ; 370:1@10um | Holographic |
ZnSe | 1-16 microns | (k1>70%; k2<0,6%)@3um ; (k1>72%; k2<0,22%)@10um | 98,3%@3um ; 99,4%@10um | 58:1@3um ; 163:1@10um | 116:1@3um ; 326:1@10um | Holographic |
CaF2 | 1-9 microns | (k1>70%; k2<0,7%)@3um | >98%@3um | >50:1@3um | >100:1@3um | Mechanically ruled |
ZnSe | 1,5-14 microns | (k1>70%; k2<1,4%)@3um | >97%@3um | >25:1@3um | >50:1@3um | Mechanically ruled
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