KYW Crystal - An Overview
KYW Crystal - An Overview
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The obtain bandwidth e.g. of Yb:KGW and Yb:KYW is rather huge compared with that of Yb:YAG. This enables for large wavelength tunability and for Significantly shorter pulse durations from manner-locked lasers. Values perfectly down below a hundred fs have already been attained with passive method locking.
This exclusive characteristic of ultrafast pulses permits nonlinear optical conversation with tissue at minimal Over-all exposure, and drives purposes for instance deep-tissue multiphoton microscopy and superior-precision eye surgery
Femtosecond laser based upon Yb:KYW crystals with suppression of spectral narrowing within a regenerative amplifier by spectral profiling of the heartbeat
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By substituting yttrium with ytterbium in the crystal lattice of Yb:KYW due to equivalent measurements of these chemical components as many as one hundred% of Yb-doping could be obtained. This one of a kind attribute permits ytterbium to go ahead and take place of yttrium with pretty much no disruption to your crystal’s lattice.
Adhesion Exam Compliant with MIL-C-675C military services standards, an adhesion exam included making use of a tape that meets LT-90 specifications onto the lens movie layer. The tape was affixed absolutely after which you can taken out vertically. This treatment was performed thrice, resulting in no blistering or peeling.
Raman, luminescence and transmission spectra expose optical attributes owing into the more info presence of thulium ions, and therefore the products may be additional analyzed inside the scope of laser and luminescence apps.
Tungstates have a tendency to obtain high Raman coefficients (�?Raman scattering). Consequently, they're able to create important Raman acquire at reasonable optical intensities. It can be done to utilize the laser crystal alone for a Raman converter.
For tungstates, the ytterbium doping concentration can be quite significant with no major quenching because the changed ions have an exceptionally similar ion radius, and the inter-ion length is comparatively big.
On the other hand, the moment Nd3+:YAG turned commercially out there, the curiosity in CaWO4 dropped sharply. In later on many years, certain other tungstate crystals began to appeal to loads of attention.
The thermal conductivity of common double tungstates is from the buy to three–four W/(K m) �?which is not poor as opposed with other laser crystals (Even though a number of moments below for YAG), and reasonably substantial in comparison Along with the thermal conductivity of typical Eyeglasses.
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