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Undoped YAG Crystal is an excellent material for UV-IR optical windows, particularly for high temperature and high energy density online_orderings, The mechanical and chemical stability is comparable to sapphire crystal, but YAG is unique with non-birefringence and available with higher optical homogeneity and surface quality. Up to 3'' YAG boule grown by CZ method, as-cut blocks, windows and mirrors are available from ultiQuest Technology.
 Physical and Optical Properties: |
Properties |
Values |
Crystal structure |
Cubic |
Density |
4.5g/cm 3 |
Transmission Range |
250-5000nm |
Melting Point |
1970°C |
Specific Heat |
0.59 W.s/g/K |
Thermal Conductivity |
14 W/m/K |
Thermal Shock Resistance |
790 W/m |
Thermal Expansion |
6.9x10 -6 /K |
dn/dt, @633nm |
7.3x10 -6 /K -1 |
Mohs Hardness |
8.5 |
Refractive Index |
1.8245 @0.8 m m, 1.8197 @1.0 m m, 1.8121 @1.4 m m |
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| Our Manufacture Technical Capabilities: |
Properties |
Values |
Orientation |
within 5° |
Diameter |
+/-0.1mm |
Thickness |
+/-0.2mm |
Flatness |
better than l /8@633nm |
Parallelism |
better than 30'' |
Perpendicularity |
better than 5' |
Scratch-Dig |
10-5 per MIL-O-1383A |
Wavefront Distortion |
better than l /2 per inch@1064nm |
| Please Contact ultiQuest for more information and technical supports. |
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| NOTES! |
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Be sure to wear laser safety goggles when checking optical path and adjusting optical axis. |
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