Journal ArticleDOI
Thermally self‐induced phase modulation of laser beams
TLDR
In this paper, a simple qualitative explanation of the ring structure is given and a self-induced frequency modulation of 1.5W argon laser pulses was also observed and chirping detected.Abstract:
Self‐phase modulation of laser beams by media which possess a temperature‐dependent refractive index gives rise to far‐field aberrational rings. Steady‐state aberration profiles were measured and quantitative agreement with theory was obtained. A simple qualitative explanation of the ring structure is given. A self‐induced frequency modulation of 1.5‐W argon laser pulses was also observed and chirping detected.read more
Citations
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New thermooptical measurement method and a comparison with other methods
Chenming Hu,John R. Whinnery +1 more
TL;DR: A simple and sensitive method of measuring the thermally induced index changes arising from absorption of a laser beam in a low-loss material that is applicable to other nonlinear index changes induced by laser beams.
Journal ArticleDOI
Thermal lens technique: a new method of absorption spectroscopy.
TL;DR: Both a single beam and a dual beam (with synchronous detection) thermal lens technique have been employed in the measurement of "colorless" organic compounds in the range 15,700 to 17,400 cm-1, with good results.
Journal ArticleDOI
Mode‐mismatched thermal lens determination of temperature coefficient of optical path length in soda lime glass at different wavelengths
TL;DR: In this article, the temperature coefficient of optical path length ds/dT at different wavelengths of soda lime glasses (72 wt% SiO2, 18 wt % Na2O, 10 wt´% CaO, and 70.5 wt''% Fe2O3) was determined.
References
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Journal ArticleDOI
Long‐Transient Effects in Lasers with Inserted Liquid Samples
TL;DR: In this paper, buildup and decay transients were observed when polar or nonpolar liquid cells were placed within the resonator of a helium-neon laser operating in the red at 6328 A.
Journal ArticleDOI
Thermal self-actions of laser beams
TL;DR: Theoretical and experimental studies of thermal self-defocusing and self-focusing CW laser beams in liquids and solids are given in this article, where an analytical theory of the thermal selfactions, including aberration phenomena, is developed.
Journal ArticleDOI
Self-Modulation, Self-Steepening, and Spectral Development of Light in Small-Scale Trapped Filaments
TL;DR: In this paper, the influence of a nonzero orientational relaxation time and of linear dispersion upon the phase (and amplitude) development of the light as it interacts with the optically nonlinear medium is studied.
Journal ArticleDOI
Thermal convention and spherical aberration distortion of laser beams in low-loss liquids
TL;DR: In this paper, experiments and approximate analysis are given for spherical aberration interference rings and for convection distortion arising in the thermal self-defocusing effects produced by laser beams passing through materials of finite loss.
Journal ArticleDOI
Optical patterns of thermally self‐defocused light
TL;DR: In this paper, the authors observed a pattern of concentric annuli formed as a result of thermal effects upon a light beam, which is the first time such patterns have been reported.