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Proceedings Paper

Investigation of the electronic, linear, and second-order nonlinear optical properties for the wide bandgap chalcopyrite ternary nitrides
Author(s): L. C. Tang; Y. C. Chang; J. Y. Huang; C. S. Chang
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Paper Abstract

We present the results of the ab initio calculated electronic properties, first and second harmonic generation for the AII BIV N2 (AII=Be, Mg; BIV =C, Si, Ge) compounds with chalcopyrite structure performed using the Linear Augmented Slater-Type Orbitals (LASTO) method. The second-order optical susceptibilities as functions of frequency for AII BIV N2 are also presented. Specifically, we study the relation between the structural properties and the optical responses. Our electronic band structure and density of states (PDOS) analysis reveal that the underestimate bandgaps of these chalcopyrite AIIBIV N2 are wide enough (from 4eV to 6eV), direct transition and mainly located at Γ-point. Calcultion results show this new category wide-bandgap ternary nitrides has potential applications in optoelectronics.

Paper Details

Date Published: 25 August 2008
PDF: 9 pages
Proc. SPIE 7056, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications II, 705605 (25 August 2008); doi: 10.1117/12.791577
Show Author Affiliations
L. C. Tang, National Chiao Tung Univ. (Taiwan)
Research Ctr. for Applied Science (Taiwan)
Y. C. Chang, Univ. of Illinois at Urbana-Champaign (United States)
Research Ctr. for Applied Science (Taiwan)
J. Y. Huang, National Chiao Tung Univ. (Taiwan)
C. S. Chang, National Chiao Tung Univ. (Taiwan)


Published in SPIE Proceedings Vol. 7056:
Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications II
Shizhuo Yin; Ruyan Guo, Editor(s)

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