Electron paramagnetic resonance of Cr2+ and Cr4+ ions in CdGeAs2 crystals
Electron paramagnetic resonance (EPR) has been used to investigate chromium ions in single crystals of CdGeAs2 grown by the horizontal gradient freeze technique. Signals from Cr2+ and Cr4+ ions were o...
Electron paramagnetic resonance (EPR) has been used to investigate chromium ions in single crystals of CdGeAs2 grown by the horizontal gradient freeze technique. Signals from Cr2+ and Cr4+ ions were o...
Nitrogen-activated bowing of dilute InyGa1–yAs1–xNx based on photoreflectance studies
The dependence of the fundamental band gap and higher-lying critical-point energies of dilute-nitrogen Ga1–yInyAs1–xNx epilayers on nitrogen mole fraction (x), for x0.0125, and temperature, ...
The dependence of the fundamental band gap and higher-lying critical-point energies of dilute-nitrogen Ga1–yInyAs1–xNx epilayers on nitrogen mole fraction (x), for x0.0125, and temperature, ...
Acousto-optic response of nematic liquid crystals
J. Appl. Phys. 94, 7571 (2003); doi:10.1063/1.1628381
Issue Date: 15 December 2003
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The dependence of the acousto-optic response of two nematic liquid crystals on several possible future device parameters is investigated. Several paths for possible optimization are identified. A large enhancement of the acousto-optic response is obtained through optimization of the incident angle of the acoustic wave. The power required for a given cell to reach the maximum optical intensity is also reduced by adjusting the optical angle. This reduction comes at the expense of higher zero-field intensity, and therefore lowers the overall contrast. Finally, the acousto-optic response shows a significant dependence on liquid crystal layer thickness, scaling with the theoretically predicted fifth power of the cell thickness. ©2003 American Institute of Physics.
| History: | Received 3 July 2003; accepted 2 October 2003 |
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REFERENCES (11)
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- S. Candau and S. V. Letcher, in Advances in Liquid Crystals, edited by G. H. Brown (Academic, New York, 1978), p. 167.
- O. A. Kapustino, in Physical Properties of Liquid Crystals, edited by D. Demus, J. W. Goodby, G. W. Gray, and H. Spiess (Wiley, New York, 1999).
- J.-L. Dion,
C. R. Seances Acad. Sci. Ser. B 284, 219 (1977) . - J.-L. Dion and A. D. Jacob, Appl. Phys. Lett. 31, 490 (1977).
- J.-L. Dion, C. R. Seances Acad. Sci. Ser. B 286, 383 (1978).
- J.-L. Dion, J. Appl. Phys. 50, 2965 (1979).
- J.-L. Dion, R. Simard, A. D. Jacob, and A. Leblanc, Ultrasonics Symposium (IEEE, New York, 1979), p. 56.
- J. S. Sandhu, U.S. Patent No. 4,379,408 (April 12, 1983);
- D. W. Gerdt, M. C. Baruch, and C. M. Adkins,
Proc. SPIE 3955, 58 (1999) . - J. S. Sandhu, H. Wang, and W. J. Popek, Proc. SPIE 2955, 94 (2000).
- J. V. Selinger, M. S. Spector, V. A. Greanya, B. T. Weslowski, D. K. Shenoy, and R. Shashidhar, Phys. Rev. E 66, 051708 (2002).
U.S. Patent No. 4,492,107 (January 8, 1985);
U.S. Patent No. 4,506,550 (March 26, 1985);
U.S. Patent No. 4,651567 (March 24, 1987);
U.S. Patent No. 4,652,086 (March 24, 1987);
U.S. Patent No. 4,788,865 (December 6, 1988);
J. S. Sandhu, W. J. Popek, and H. Wang, U.S. Patent No. 5,796,003 (August 18, 1998);
U.S. Patent No. 6,049,411 (April 11, 2000).
