ALEXANDRITE BeAl₂O₄:Cr³⁺ (LASER)

Having emerged in the field of laser manufacturing just recently, Alexandrite became the leader among other tunable solid-state materials straight away because of the unique advantages exhibited by alexandrite lasers. Especially wide application of such lasers is found in medicine for

Photodynamic cancer therapy, blood purification in acquired immunodeficiency syndrome (AIDS) treatment, coverlet and hypodermic tissues, gall-stones and gravel destruction in gall-bladder and kidney, hair epilation.

“SOLIX” puts on the market Alexandrite crystals and elements both for lasers with diode and lamp pumping.

Properties	Parameter unit	Values
Molecular weight		126.97
Mean dislocation density	cm²	10³
Syngony		Rhombic
Spatial group		Pnma
Unit sell parameters	Å	a = 5.47 b = 9.39 c = 4.42
Refraction indexes		Ng = 1.753 Nm = 1.747 Np = 1.744
Density	g/cm³	3.79
Moh’s hardness		8.5
Axial characteristics		Biaxial
Melting point	^oC	1870
Thermal conductivity	W/cm^oK	0.23
Color		Green (for daylight), Red (for artificial lightening)

BeAl₂O₄:Cr³⁺ PROPERTIES

Cr⁴⁺ concentration	at%	0.03 – 1.0
Stimulated emission cross-section at 300 K	cm²	3.0 ´ 10^-19
Lifetime	sec	260 ´ 10^-6
Optical loss (l= 750 nm)	cm^-1	0.001 - 0.003
Wavelengths of operation in CW and pulsed mode	mm	0.70 – 0.82

BeAl₂O₄:Cr³⁺ LASER RODS

Configuration of rod’s cross section		Round
Sizes and processing
Diameter tolerance	mm	+/- 0.1
Length tolerance	mm	+/- 0.5
Non-parallelism of end faces		10”
Surface finish	Scratch-dig	10-5
Flatness		l/10
Orientation tolerance		< 0.5^o
Rod’s orientation		[001]
Diameter	mm	4 – 10
Length	mm	60 - 120

ALEXANDRITE BeAl2O4:Cr3+ (LASER)

“SOLIX” puts on the market Alexandrite crystals and elements both for lasers with diode and lamp pumping.

Refraction indexes

Rod’s orientation

[001]

ALEXANDRITE BeAl₂O₄:Cr³⁺ (LASER)