THERMAL SELF-FOCUSING OF LASER BEAMS IN LEAD GLASSES

THERMAL SELF-FOCUSING OF LASER BEAMS IN LEAD GLASSES

Strong thermal self-focusing of an argon laser beam has been observed when the beam passes through lead glass. Focal lengths of less than 20 cm were obtained. The beams showed the effects of spherical aberration and at certain power levels beam trapping occurred. A simple theory is proposed to expla...

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Veröffentlicht in:Applied physics letters 1968-10, Vol.13 (8), p.284-286
Hauptverfasser: Dabby, F. W., Whinnery, J. R.
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container_title Applied physics letters
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Whinnery, J. R.
description Strong thermal self-focusing of an argon laser beam has been observed when the beam passes through lead glass. Focal lengths of less than 20 cm were obtained. The beams showed the effects of spherical aberration and at certain power levels beam trapping occurred. A simple theory is proposed to explain the observed trapping. Computer solutions have been obtained which reasonably agree with experimental determination of focal planes and spot radius.
doi_str_mv 10.1063/1.1652612
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title THERMAL SELF-FOCUSING OF LASER BEAMS IN LEAD GLASSES
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