Slow components of solitonic wave of change in reflection and conduction excited by CO2 laser pulse in plexiglass: experiments with IR detector

Eugene M. Kudriavtsev; Sergey D. Zotov; Michel L. Autric

doi:10.1117/12.413985

25 January 2001 Slow components of solitonic wave of change in reflection and conduction excited by CO₂ laser pulse in plexiglass: experiments with IR detector

Eugene M. Kudriavtsev, Sergey D. Zotov, Michel L. Autric

Author Affiliations +

Proceedings Volume 4184, XIII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference; (2001) https://doi.org/10.1117/12.413985
Event: XIII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, 2000, Florence, Italy

Abstract

Experimental results of investigation in plexiglas support previously published our groups data of JR laser and e-beam excitation in solids of solitonic Wave of Change in Reflection and Conduction (WCRC). Method of single IR detector WCRC registration was applied in addition to JR thermovision method used before (there were used also -5other different methods). Results of slow WCRC components investigations showed that solitonic heat transfer play additional role to usual diffusive heat transfer. This role could be important at some conditions. As the control, the measured in this work WCRC component velocity ~ 0.26 cm/s does not depend from sample thickness which was equal 1.5 and 2.0 mm. Analysis of records treatment by help of (x-t) diagram permit to show many features of studied solitonic excitations lived in the solid sample during many minutes. Irradiation of the front surface by single laser pulse produced WCRC components; in experimental conditions of this work one can see pair components of the same velocity which were born as on front as on rear sample surface. They moved in different directions and reflects from sample surfaces many times with small energy losses. This work was sponsored by RFBR (Russia), project 97-02-17954-a) and 00-02-17249 a).

Citation Download Citation

Eugene M. Kudriavtsev, Sergey D. Zotov, and Michel L. Autric "Slow components of solitonic wave of change in reflection and conduction excited by CO₂ laser pulse in plexiglass: experiments with IR detector", Proc. SPIE 4184, XIII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, (25 January 2001); https://doi.org/10.1117/12.413985

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KEYWORDS

Reflection

Velocity measurements

Carbon dioxide lasers

Infrared detectors

Pulsed laser operation

Solitons

Diffusion

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