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Crystals 2017, 7(6), 178; doi:10.3390/cryst7060178

Heteroepitaxy, an Amazing Contribution of Crystal Growth to the World of Optics and Electronics

Air Force Research Laboratory, Sensors Directorate, WPAFB, Dayton, OH 45433, USA
Academic Editor: Helmut Cölfen
Received: 21 April 2017 / Revised: 5 June 2017 / Accepted: 11 June 2017 / Published: 19 June 2017

Abstract

Advances in Electronics and Optics are often preceded by discoveries in Crystal Growth theory and practice. This article represents in retrospect some of the most significant contributions of heteroepitaxy in these and some other areas—the strong impact of the three modes of heteroepitaxy on microelectronics and quantum optics, the big “push” of PENDEO epitaxy in development of Light Emitting Diodes, etc. A large part of the text is dedicated to heteroepitaxy of nonlinear optical materials grown on orientation-patterned templates and used in the development of new quasi-phase-matching frequency conversion laser sources. By achieving new frequency ranges such sources will result in a wide variety of applications in areas such as defense, security, industry, medicine, and science. Interesting facts from the scientific life of major contributors in the field are mixed in the text with fine details from growth experiments, chemical equations, results from material characterizations and some optical and crystallographic considerations—all these presented in a popular way but without neglecting their scientific importance and depth. The truth is that often heteroepitaxy is not just the better but the only available option. The truth is that delays in device development are usually due to gaps in materials research. In all this, miscommunication between different scientific communities always costs vain efforts, uncertainty, and years of going in a wrong scientific direction. With this article we aim to stimulate a constructive dialog that could lead to solutions of important interdisciplinary scientific and technical issues. View Full-Text
Keywords: heteroepitaxy; hydride vapor phase epitaxy; selective growth; III-Nitrides; nonlinear optical materials; orientation-patterned templates; frequency conversion; quasi-phase-matching heteroepitaxy; hydride vapor phase epitaxy; selective growth; III-Nitrides; nonlinear optical materials; orientation-patterned templates; frequency conversion; quasi-phase-matching
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Tassev, V.L. Heteroepitaxy, an Amazing Contribution of Crystal Growth to the World of Optics and Electronics. Crystals 2017, 7, 178.

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