Ti:Sapphire (Titanium sapphire)
Ti:Sapphire crystal product, also known as titanium doped sapphire crystal, with the chemical formula of Ti3+:Al2O3. It is a transition metal doped laser crystal with good comprehensive performance.
As an optically pumped solid-state laser crystal, Ti-doped sapphire is widely used in wavelength tunable lasers. The tunable range is 650-1100 nm and the peak value is 800 nm. It is the widest wavelength tunable laser crystal.
Ti3+ ions have very large gain bandwidth, which opens the possibility of obtaining very wide wavelength tunability in short pulse lasers. The upper state lifetime of Ti: sapphire is as short as 3.2 ms. because of its high saturated power. It is generally used as a lamp, an argon ion laser or a frequency double pumped Nd:YAG laser.
Using self mode locking technology, Ti: sapphire laser can directly output laser pulses with a pulse width of less than 6.5 fs, which is the narrowest laser pulse of all lasers directly output from the resonator. Through the dual frequency technology, the wavelength of the laser beam can cover the wideband from blue to deep UV.
The 193 nm laser produced has been used in the lithography machine. The product has the characteristics of short service life and high saturation power. It can be used in lamps, argon ion lasers or frequency double pumped Nd:YAG lasers.
The Features of Ti:Sapphire:
- High damage threshold
- With wide absorption pump
- The narrow width of lock mode
- Wide wavelength tunability
- The output efficiency of excellence
- On the state of life is short (3.2 mm)
|Orientation||The A-axis is within 5 degrees, and the E-vector is parallel to the C-axis|
|Wavefront Distortion||<λ /4@632 nm|
|Surface Flatness||<λ/8@632 nm|
|Coating||Standard coating is AR with R < 5.0% each
face @532 nm and R < 0.5% each face,
from 650 nm to 850 nm. Custom coatings
Physical and Chemical Properties
|Crystal Structure||Hexagonal System|
|Melting Point||2040 °C|
|Coefficient of Thermal Conductivity||33 W / (m K)|
|Refractive Index Temperature Coefficient||13 × 10−6K−1|
|Thermal Shock Resistance Parameters||790 W/m|
|Thermal Expansion||≈ 5 × 10-6K-1|
|Young modulus/ GPa||335|
|Specific Heat Capacity||0.1 cal/g|
|Tensile Strength/ Mpa||400|
|0.1％Titanium density||4.56 × 1019cm−3|
Optical and Spectral Properties
|Laser Wavelength,||660-1200 nm|
|Tunable Absorption Band||400-600 nm|
|Absorption Peak||488 nm|
|Emission Cross Section@ 790 nm||41 × 10-20 cm2|
|Fluorescence Lifetime||3.2 ms|
|Emission Line Width||650-1100 nm|
|Refractive Index@ 633 nm||1.77@ 532 nm; 1.76@800 nm; 1.75@1100 nm|
|Absorption Coefficient||0.5～6.0 cm-1|
Absorption and Emission Spectra
Ti:Sapphire Absorption Curve
Ti:Sapphire Emission Curve
Related product(s) with Ti:Sapphire:
|Nonlinear Crystal BBO|
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