TITLE

Bragg-diffraction-type acousto-optic device using Pb(ZrTi)O[sub 3] film

AUTHOR(S)
Lee, Changho; Kim, Sangho; No, Kwangsoo
PUB. DATE
May 2003
SOURCE
Applied Physics Letters;5/12/2003, Vol. 82 Issue 19, p3153
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We fabricated a hybrid-type acousto-optic [AO] device [Pb(Zr,Ti)O[SUB3](PZT)/TiO[SUBx] /SiO[SUB2]/SiN[SUBx]/SiO[SUB2]/Si] and analyzed AO Bragg diffraction efficiency (ζ) to estimate the applicability of piezoelectric PZT to a Bragg-diffraction-type AO device. A surface acoustic wave (SAW) was generated on the PZT film, and an optical beam (He-Ne laser) was guided in the SiN[SUBx] film. ζ was varied to 9% in the AO devices fabricated with various AO quality factors (Q) and film thicknesses of top SiO[SUB2] and PZT film, respectively. Using the results, we qualitatively analyzed the decay of SAW power to the film depth direction and AO figure of merit (M[SUB2] = 0.75× 10[SUP-18] s[SUP3]/g of the SiN[SUBx] film.
ACCESSION #
9697779

 

Related Articles

  • Multielement hypersonic piezotransducers with slowly varying parameters for acoustooptic devices. Nefedov, I. S.; Petrov, V. V. // Technical Physics Letters;Mar99, Vol. 25 Issue 3, p196 

    The frequency bands of acoustooptic devices can be extended appreciably by using multielement transducers in the form of multielement chains with variable parameters such as the grating step, phase shift per cell, piezolayer thickness, cell impedance, and electrode length of a single element....

  • Acoustooptic Cells with Nonuniform Length of Light–Sound Interaction. Voloshinov, V.B.; Knyazev, G.A. // Technical Physics;Nov2003, Vol. 48 Issue 11, p1475 

    Diffraction of light by acoustic waves that are generated in the acoustooptic cells of piezoelectric transducers with complex geometry is studied. The diffraction by acoustic beams with triangular, quadrangular (rhombic), hexagonal, etc., cross sections, when the lengths of light–sound...

  • Acousto-optic modulation using a new chlorotellurite glass. Abdulhalim, I.; Pannell, C.N.; Wang, J.; Wylangowski, G.; Payne, D.N. // Journal of Applied Physics;1/1/1994, Vol. 75 Issue 1, p519 

    Results of initial tests on an acousto-optic modulator using a new chlorotellurite glass with a composition of 3TeO2-2ZnCl2 are reported. This glass exhibits a wider transparency range (0.42–5.7 μm) than other tellurite glasses, with approximately the same figures of merit. We obtained...

  • A Multichannel Acoustooptical Deflector with a Planar Delay-Line Structure for Ultrasound Excitation. Rozdobud’ko, V.; Shibaev, S.; Pelipenko, M. // Instruments & Experimental Techniques;Jul/Aug2005, Vol. 48 Issue 4, p509 

    Results are presented from the development and experimental study of an eight-channel acoustooptical deflector with central frequency f0 = 1000 MHz and bandwidth Δ fΣ = 500 MHz within the limits of a 6-dB nonuniformity of diffraction efficiency, the maximum value of which is η ≈...

  • Signs of Elastooptic Coefficients in Low-Symmetry Materials. Mytsyk, B.; Dem'yanyshyn, N.; Kost', Ya. // Materials Science;Mar2015, Vol. 50 Issue 5, p762 

    For CaWO calcium-tungstate crystals based of piezooptic π and elastic C coefficients, we fill the matrix of elastooptic constants p and compute the errors of their determination. We reveal the following empirical regularity: the signs of piezo- and elastooptic coefficients with identical...

  • New Acousto-Optic Device Shapes and Steers Light Beams at Very High Speeds.  // Photonics Components & Subsystems;Jan2015, Vol. 14 Issue 1, p2 

    The article reports on the development of a team of engineers, led by Bruce Drinkwater and Mike MacDonald, of an acousto-optic device than can shape and steer light beams at very high speed. According to Drinkwater, the method offers very high refresh rates for future laser beam-based devices....

  • Cascaded TeO2 acousto-optic devices for high efficiency multifrequency modulation. Kastelik, J.C.; Gazalet, M.G.; Boudy, P. // Journal of Applied Physics;1/15/1998, Vol. 83 Issue 2, p674 

    Presents an original combination of two cascaded multifrequency acousto-optic modulators, based on the tangential phase matching anisotropic interaction. Result of the diffraction os a light beam by multiple acoutic waves; Information on the multifrequency tangential phase matching interaction...

  • Physics update. Schewe, Phillip F.; Stein, Benjamin P. // Physics Today;Jul97, Vol. 50 Issue 7, p9 

    States that an acousto-optic device which was developed at the University of Munich will bring about a method for processing and storing light signals on a chip. Concept of the device; Observation on typical excitons in the experiment.

  • Acoustooptical processor for radio signals with discrete frequency modulation. Esepkina, N. A.; Lavrov, A. P.; Dmitriev, S. V. // Technical Physics Letters;Jan97, Vol. 23 Issue 1, p54 

    A study is made of a processor for pulsed radio signals with discrete frequency modulation, where the frequency varies discontinuously within a pulse and takes on N different values. The spectral components are separated with an acoustooptic spectrum analyzer whose spectral plane is imaged onto...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics