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Applied Optics

Applied Optics


  • Vol. 28, Iss. 17 — Sep. 1, 1989
  • pp: 3647–3651

Pyroelectric detection of submicrosecond laser pulses between 230 and 530 μm

Wen-sen Zhu, Jerald R. Izatt, and B. K. Deka  »View Author Affiliations

Applied Optics, Vol. 28, Issue 17, pp. 3647-3651 (1989)

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A continuously tunable far-IR Raman laser has been used to measure the responsivity and the spectral response of uncoated LiTaO3 pyroelectric detectors between 230 and 530 μm. A striking feature of the spectral response curves is a periodic sequence of maxima and minima, with a modulation factor of ≥75%. Calculations based on the theory of an absorbing Fabry-Perot etalon indicate that these variations correspond to interference fringes produced by multiple reflections at the surfaces of the LiTaO3 crystal.

© 1989 Optical Society of America

Original Manuscript: November 3, 1988
Published: September 1, 1989

Wen-sen Zhu, Jerald R. Izatt, and B. K. Deka, "Pyroelectric detection of submicrosecond laser pulses between 230 and 530 μm," Appl. Opt. 28, 3647-3651 (1989)

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