6450 nm wavelength tissue ablation using a nanosecond laser based on difference frequency mixing and stimulated Raman scattering

2007 ◽  
Vol 32 (11) ◽  
pp. 1426 ◽  
Author(s):  
G. S. Edwards ◽  
R. D. Pearlstein ◽  
M. L. Copeland ◽  
M. S. Hutson ◽  
K. Latone ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Stimulated Raman Scattering ◽  
Difference Frequency ◽  
Tissue Ablation ◽  
Nanosecond Laser ◽  
Stimulated Raman ◽  
Frequency Mixing

Survey of lasers for spectroscopic use: optical and ultraviolet

1982 ◽  
Vol 307 (1500) ◽  
pp. 469-479
Keyword(s):  
Raman Scattering ◽  
Ultraviolet Radiation ◽  
Harmonic Generation ◽  
Stimulated Raman Scattering ◽  
Dye Lasers ◽  
Excimer Lasers ◽  
Narrow Bandwidth ◽  
Stimulated Raman ◽  
Frequency Mixing

The principles and operation of narrow-bandwidth and mode-locked tunable dye lasers are described and the extension of their effective tuning ranges by harmonic generation and stimulated Raman scattering is discussed. Methods of producing highpower ultraviolet radiation using excimer lasers and techniques for vacuum u.v. generation by frequency mixing are also described.

Frequency Modulation Applied to Stimulated Raman Scattering (SRS) for Linewidth and Temperature Measurement

1980 ◽  
Vol 34 (6) ◽  
pp. 617-621 ◽  
Author(s):  
P. E. Perkins
Keyword(s):  
Raman Scattering ◽  
Temperature Measurement ◽  
Frequency Modulation ◽  
Frequency Tuning ◽  
Stimulated Raman Scattering ◽  
Difference Frequency ◽  
Harmonic Content ◽  
Stimulated Raman

FM modulation is investigated as a technique for accurately measuring the linewidths of Lorentzian resonances observed by stimulated Raman scattering difference frequency tuning. A normalized linewidth is obtained from the ratio of the nth to the ( n + 1)th harmonic content of the detected signal. Possible applications in temperature measurement are discussed.

scholarly journals Scattering of Ginzburg–Frank and Cherenkov Types Under Self-Focusing of Nanosecond Laser Pulses in Liquids

2018 ◽  
Vol 63 (4) ◽  
pp. 285
Author(s):  
A. I. Ivanisik
Keyword(s):  
Raman Scattering ◽  
Phase Velocity ◽  
Stimulated Raman Scattering ◽  
Laser Pulses ◽  
Pulse Excitation ◽  
Nanosecond Laser Pulse ◽  
Nanosecond Laser ◽  
Self Focusing ◽  
Anti Stokes ◽  
Stimulated Raman

We study the dynamics of nonlinear optical processes such as self-focusing, self-phase modulation, and stimulated Raman scattering in Kerr-liquids under the nanosecond laser pulse excitation. The results prove the existence of the transition Ginzburg–Frank-type effect, which promotes the appearance of new spectral components of the laser radiation at the medium boundary. The generation of extended anti-Stokes frequency-angular bands of stimulated Raman scattering is explained. When the velocity of a self-focusing focal spot matches the phase velocity of the non-linear polarization at the anti-Stokes Raman frequency and the phase velocity of the scattered axial radiation, the most intense frequency-angular bands appear. They are described by the equations typical of the Cherenkov radiation.

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