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Basic Properties of Quartz Crystal

Transparency Range: 200 - 2300 nm

material-cq.GIF (10904 bytes)

Transmission Curve

Crystal Symmetry: Hexagonal, P3121
Lattice Constants: a=b=4.9133A, c=5.4053A
Density:  2.65 g/cm3
Thermo-Optic Coefficients:
dno/dT= -0.52 x 10-6 /oC @ 530 nm
dne/dT= -0.63 x 10-6/oC  @ 530 nm
Damage Threshold ( 10ns, 10Hz)
~ 1GW/cm2 at 1064 nm
~ 500 MW/cm2 qt 532 nm
Optical Homogeneity: Δn < 10-6/cm
Mohs Hardness:  7
Thermal Expansion Coefficients:   αa = 14 x 10-6/K
  ac = 7.6 x 10-6/K
Linear Absorption Coefficients: α<0.01cm-1 from 300 to 2300 nm

Sellmeier Equations: (λ in m) :
no2=2.3573-0.01170λ2+0.01054/λ2+1.3414x10-4/λ4-4.4537x10-7/λ6+5.9236x10-8/λ8
ne2=2.3849-0.01259λ2+0.01079/λ2+1.6518x10-4/λ4-1.9474x10-6/λ6+9.3648x10-8/λ8

 Wavelength(nm) no ne Birefringence
(Δn=ne-no)
Walk-off Angle
 at 45
1064 1.5341 1.5428 0.00872 -0.325
800 1.5384 1.5473 0.00891 -0.331
632.8 1.5427 1.5517 0.00906 -0.336
532 1.5469 1.5561 0.00920 -0.340
400 1.5577 1.5673 0.00957 -0.351
355 1.5646 1.5744 0.00982 -0.358
266 1.5916 1.6024 0.01077 -0.386


 

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