Ti:Sapphire レーザ結晶
Titanium Doped Sapphire Crystal (Ti:Sapphire)
Titanium doped Sapphire (Ti:Sapphire) is the most widely used laser crystal for widely tunable and ultrashort pulsed lasers with high gain and high power outputs. CASTECH possesses the advanced growth method of Temperature Gradient Technique (TGT), it supplies large-sized (Dia.30× 30mm) Ti:Sapphire crystal in high quality free of light scatter, with the dislocation density less than 102cm-2. The TGT grown sapphire crystal is characterized by the (0001) oriented growth, high doping level (a490= 4.0cm-1), high gain and laser damage threshold.
Main Applications
- The tunable wavelengths that cover a broad range from 700 to 1000 nm make Ti:Sapphire an excellent substitute for dye lasers in many applications.
- Doubling by NLO crystals such as BBO in an ultra-thin, Ti:Sapphire can be used to generate UV and DUV (up to 193 nm ) laser with ultrafast pulses below 10fs.
- Ti:Sapphire is also widely used as the pumping source of OPOs greatly to expand the tunable range.
Basic Properties
| Chemical formula: | Ti3+: Al2O3 |
| Crystal structure: | Hexagonal |
| Lattice constants: | a=4.758Å, c=12.991Å |
| Density: | 3.98 g/cm3 |
| Melting point: | 2040oC |
| Mohs hardness: | 9 |
| Thermal conductivity: | 52 W/m/k |
| Specific heat: | 0.42 J/g/k |
| Laser action: | 4-Level Vibronic |
| Fluorescence lifetime: | 3.2µs (T=300K) |
| Tuning range: | 660 ～ 1050 nm |
| Absorbtion range: | 400 ～ 600 nm |
| Emission peak: | 795 nm |
| Absorption peak: | 488 nm |
| Refractive index: | 1.76 @ 800 nm |
| Peak Cross-section: | 3-4×10-19cm2 |
| thermal Expansion: | 8.40×10-6/℃ |
Standard product specifications
- Orientation: Optical axis C normal to rod axis
- Ti2O3 concentration: 0.06 - 0.26atm %
- Figure Of Merit(FOM): 100~250(>250 available on special requests)
- α490: 1.0-4.0cm-1
- Diameter: 2-30mm or specified
- Path Length: 2-30mm or specified
- End configurations: Flat/Flat or Brewster/Brewster ends
- Flatness: <λ/10 @ 633 nm
- Parallelism: <10 arc sec
- Surface finishing: <40/20scratch/dig to MIL-PRF-13830B
- Wavefront distortion: <λ/4 per inch
カタログ ダウンロード
- Ti:Sapphire レーザ結晶
204KB
CASTECH社の製品一覧へ戻る