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This special attribute of ultrafast pulses allows nonlinear optical conversation with tissue at very low In general exposure, and drives applications including deep-tissue multiphoton microscopy and substantial-precision eye surgical procedures
Femtosecond laser determined by Yb:KYW crystals with suppression of spectral narrowing within a regenerative amplifier by spectral profiling of the heartbeat
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Ultrafast lasers, with pulse widths of a few picoseconds (10−12 s) or significantly less, allow time resolution essential in laser-excited fluorescence lifetime spectroscopy and imaging strategies.Additionally, they provide large pulse peak powers at large repetition charges and moderate average output powers.
Adhesion Test Compliant with MIL-C-675C navy criteria, an adhesion exam associated making use of a tape that satisfies LT-ninety specifications onto the lens movie layer. The tape was affixed entirely after which removed vertically. This method was carried out three times, leading to no blistering or peeling.
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A high brightnessQ-switched oscillator and regenerative amplifier depending on a dual-crystal Yb:KGW laser
... at fifty percent-peak had been generated inside a master oscillator with selfsynchronization of the axial modes, explained within our previously post. 21 The new version of your laser, compared with that described in our before post, employed an Yb:KYW crystal having an N pcut (optical axis N p with the index ellipsoid was parallel to your propagation route in the laser radiation), Using the polarization of the produced radiation directed along the click here N m axis.
... Not simply the position of crystal while in the cavity but also the amplification axis of crystal has an effect on the laser Procedure significantly, as the absorption and emission cross sections with the crystal are pretty various based on the orientation of your crystal.
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Concurrently, a shorter laser wavelength is often acquired; it is feasible to operate which has a quantum defect perfectly underneath 1%. As a consequence, the warmth generation is usually so smaller that this partly compensates the lessen thermal conductivity.