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Home > 제품소개 > OPTIC & COMPONENT > Laser Crystal > Alexandrite - ALLEXITE

Alexandrite - ALLEXITE
* broad wavelength tuning range of 710 - 800nm
* capability to store and efficiently extract multijoule pulses of energy. 
* thermal shock resistance five times that of Nd:YAG.

* Medical
* Cosmetic
* Spectroscopy
* Industrial Ordering Options and Specifications

#1 : alex_data_sheet.pdf
#2 : Alexandrite_Absorption Spectrum.pdf

Alexandrite (710-800 nm)

Ordering Options and Specifications
%Cr Concentration 0.13% (0.10% to 0.20% available)
Wavefront Distortion (per inch of rod length) l/2
End Face Parallelism <30 arc seconds

Material Properties
Formula Be (Al1-xCrx)2O4
Crystal Structure Orthorhombic
Unit Cell Dimensions (Å) 5.476(a) x 9.404(b) x 4.427(c) per ASTM 10-32
Thermal Expansion
(x 10-6 °C-1)
5.9(a) x 6.1(b) x 6.7(c)
Index of Refraction
(at 750 nm)
1.7367(a) x 1.7241(b) x 1.7346(c)
Melting Point 1870°C
Vickers Hardness 2000 kg mm-2
Density 3.7 g/cm3
Thermal Conductivity 0.23 W cm-1 K-1
Young's Modulus 469 GPa
Thermal Shock Resistance 35-74 W/cm
dn/dT 8 x 10-6 K-1

Available Rod Lengths
3 mm - 152.4 mm

Available Rod Diameters
2 mm - 12.7 mm



 
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