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Second Harmonic Generation (SHG) measurement affected by electric field

Amjadi, A ; Sharif University of Technology | 2007

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  1. Type of Document: Article
  2. Publisher: Sharif University of Technology , 2007
  3. Abstract:
  4. A type II (eoe: extraordinary-ordinary-extraordinary) phase matching condition in a 2nd Harmonic Generation of Nd-YAG laser under a high electric field in a uniaxial KDP crystal has been measured. Type II phase matching takes place when the two mixing waves are of orthogonal polarizations (extraordinary-ordinary) and the 2nd harmonic radiation corresponds to an extraordinary wave. By applying an electric field along the X(Y) axes of the crystal, a new phase-matching angle was measured under the influence of different electric fields. The deflection angle of the SHG beam was measured as a function of the applied voltage. An optical collector will focus the 1st harmonic and a fraction of its 2nd harmonic generation used in surgical operations. © Sharif University of Technology, June 2007
  5. Keywords:
  6. Polarization ; Deflection angle ; Optical collector ; Orthogonal polarization ; Solid state lasers ; Electric field effects ; Harmonic generation ; Phase matching ; Polarization ; Crystal ; Electric field ; Laser ; Measurement method
  7. Source: Scientia Iranica ; Volume 14, Issue 3 , 2007 , Pages 236-239 ; 10263098 (ISSN)
  8. URL: http://scientiairanica.sharif.edu/article_2770.html