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Proceedings Paper

Second harmonic generation in hexagonal SiC
Author(s): Paul M. Lundquist; Weiping Lin; George K. Wong; Manijeh Razeghi; John B. Ketterson
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Paper Abstract

We report optical second harmonic generation measurements in single crystal (alpha) -SiC of polytype 6H. The sample was found to be optically uniaxial, consistent with the hexagonal symmetry of the crystal structure. The two independent components of the second order electric susceptibility tensor were determined to be d33 equals 43 pm/V and d31 equals -4.3 pm/V. From this data the principle electro-optic coefficient was computed to be r33 equals 100 pm/V. The corresponding figures of merit for nonlinear optical device operation compare favorably with leading materials such as lithium niobate and KTP, and thus the relatively convenient and inexpensive fabrication of 6H SiC thin films could prove useful for integrated optical devices.

Paper Details

Date Published: 10 April 1995
PDF: 8 pages
Proc. SPIE 2379, Solid State Lasers and Nonlinear Crystals, (10 April 1995); doi: 10.1117/12.206502
Show Author Affiliations
Paul M. Lundquist, Northwestern Univ. (United States)
Weiping Lin, Northwestern Univ. (United States)
George K. Wong, Northwestern Univ. (United States)
Manijeh Razeghi, Northwestern Univ. (United States)
John B. Ketterson, Northwestern Univ. (United States)


Published in SPIE Proceedings Vol. 2379:
Solid State Lasers and Nonlinear Crystals
Gregory J. Quarles; Leon Esterowitz; Lap Kin Cheng, Editor(s)

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