KYW Crystal Secrets
KYW Crystal Secrets
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This one of a kind attribute of ultrafast pulses allows nonlinear optical interaction with tissue at reduced Total publicity, and drives programs like deep-tissue multiphoton microscopy and high-precision eye medical procedures
time. Crystals of the compound melts congruently at 1007 oC, however soften crystallization of top of the range crystal is impossible resulting from phase transition at ~920 oC. The best seeded Answer system from
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This paper describes a femtosecond laser regenerative amplifier according to two Yb:KYW crystals with immediate longitudinal pumping by powerful linear arrays of semiconductor injection lasers having fiber output. To stop spectral narrowing for the duration of amplification as well as corresponding lengthening from the amplified pulse when it's compressed, a combination of two Yb:KYW crystals had been made use of, With all the spectral maxima of your amplification shifted relative to each other and with spectral profiling on the amplified radiation.
Adhesion Exam Compliant with MIL-C-675C army expectations, an adhesion exam involved applying a tape that fulfills LT-90 requirements on to the lens movie layer. The tape was affixed thoroughly and then removed vertically. This process was carried out three times, resulting in no blistering or peeling.
Raman, luminescence and transmission spectra expose optical options owing on the presence of thulium ions, and as a consequence the elements could possibly be further researched in the scope of laser and luminescence apps.
Spatial structure of the beam and the corresponding depth profiles I within the output of your laser.
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By substituting yttrium with ytterbium in the crystal lattice of Yb:KYW mainly because of the equivalent sizes of such chemical components approximately a hundred% of Yb-doping may very well be attained.
The thermal conductivity of popular double tungstates is with the get to 3–four W/(K m) �?which isn't bad compared with other laser crystals (Though various times below for YAG), and quite big as opposed Using the thermal conductivity of normal Eyeglasses.
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Yb:KYW crystal (Yb-doped potassium yttrium tungstate) when compared with its counterpart Yb:KGW, can be a remarkable content that plays a crucial role in laser technology. Its Main purpose will be to click here deliver ultrashort pulses of sunshine, spanning just a couple hundred femtoseconds.
Simultaneously, a shorter laser wavelength might be attained; it can be done to operate having a quantum defect properly beneath one%. For a consequence, the warmth technology is usually so compact this partly compensates the lower thermal conductivity.