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Experimental Estimate of the Nonlinear Refractive Index of Crystalline ZnSe in the Terahertz Spectral Range

  • A. N. TcypkinEmail author
  • S. E. Putilin
  • M. C. Kulya
  • M. V. Melnik
  • A. A. Drozdov
  • V. G. Bespalov
  • X.-C. Zhang
  • R. W. Boyd
  • S. A. Kozlov
Article
  • 4 Downloads

Abstract

A modification of the Z-scan technique for measuring nonlinear refractive index n2 in the terahertz spectral region is proposed. Measurements are made at a broadband terahertz radiation intensity of 0.8 × 109 W cm−2. Coefficient n2 = 2.5 × 10−11 cm2 W−1 is estimated for semiconductor crystalline ZnSe.

Notes

ACKNOWLEDGMENTS

This work was supported by leading universities of the Russian Federation, subsidy 08-08; and by the Government of the Russian Federation, project 3.9041.2017/7.8.

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Copyright information

© Allerton Press, Inc. 2018

Authors and Affiliations

  • A. N. Tcypkin
    • 1
    Email author
  • S. E. Putilin
    • 1
  • M. C. Kulya
    • 1
  • M. V. Melnik
    • 1
  • A. A. Drozdov
    • 1
  • V. G. Bespalov
    • 1
  • X.-C. Zhang
    • 1
    • 2
  • R. W. Boyd
    • 2
  • S. A. Kozlov
    • 1
  1. 1.ITMO UniversitySt. PetersburgRussia
  2. 2.Institute of Optics, University of RochesterRochesterUSA

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