YAG from Russia 

YAG

           Ho,Tm,Cr:YAG YTTRIUM ALUMINIUM GARNET
 

          CHEMICAL    FORMULA                             Ho,Tm,Cr:Y₃ Al₅ O₁₂
          CRYSTAL    STRUCTURE                           CUBIC 
          SPACE GROUP                                              Ia3d-0¹⁰_h(No.230)

DOPANT                                    HOLMIUM,  THULIUM,  CHROMIUM

DOPING IMPURITY
CONCENTRATION, CM^-3    0.5X10²⁰      8X10²⁰ 1.77X10²¹/ 0.6X10²⁰
                                      %             0.37             5.8            1.8             0.7

WAVELENGTH, mm                                          2.08

          REFRACTION    INDEX                                   1.83

THERMO-OPTICAL EFFECT                        7.3 x10^-6/ ^o C 
LINEAR EXPANSION COEFFICIENT         6.9x10^-6/ ^o C 
THERMAL SHOCK RESISTANCE               790 Wm^-1 
DIMENSIONS, mm
                                          ROD                        DIA. 3-6.3XLENGTH 50-100
                                         SLAB                        5-10X10-30X80-100 mm
ORIENTATION OF ROD AXIS                     [100] OR [111] + /-15'
PARALLELISM OF END SURFACES, ARC SEC          10
END SURFACE PERPENDICULARITY, ARC MIN         5
END SURFACE FLATNESS                           1/10TH WAVE 
SURFACE FINISH                                             10/5 SCRATCH-DIG
BARREL FINISH     -    GROUND WITH EQUIVALENT TO 400 GRIT

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