Table 1 Measured properties of different crystalline fluoride materials at 4.4 μm.
From: Mid-infrared ultra-high-Q resonators based on fluoride crystalline materials
Crystal |
| Q | Q 0 | α(cm−1) |
|
|---|---|---|---|---|---|
MgF2 | 3.4 MHz | 1 × 107 | 2 × 107 | 9 × 10−4 | 4 × 103 |
CaF2 | 710 kHz | 9.6 × 107 | 3.5 × 108 | 5 × 10−5 | 7.8 × 104 |
BaF2 | 509 kHz | 1.4 × 108 | 6.2 × 108 | 3.3 × 10−5 | 1.3 × 105 |
SrF2 | 430 kHz | 1.6 × 108 | 6 × 108 | 3.2 × 10−5 | 1.5 × 105 |
