Compliant heterogeneous assemblies of micro-VCSELs as a new materials platform for integrated optoelectronics

Dongseok Kang; Sung-Min Lee; Anthony Kwong; Jongseung Yoon

doi:10.1117/12.2080677

4 March 2015 Compliant heterogeneous assemblies of micro-VCSELs as a new materials platform for integrated optoelectronics

Dongseok Kang, Sung-Min Lee, Anthony Kwong, Jongseung Yoon

Author Affiliations +

Proceedings Volume 9381, Vertical-Cavity Surface-Emitting Lasers XIX; 93810S (2015) https://doi.org/10.1117/12.2080677
Event: SPIE OPTO, 2015, San Francisco, California, United States

Abstract

Despite many unique advantages, vertical cavity surface emitting lasers (VCSELs) have been available mostly on rigid, planar wafers over restricted areas, thereby limiting their usage for applications that can benefit from large-scale, programmable assemblies, hybrid integration with dissimilar materials and devices, or mechanically flexible constructions. Here, materials design and fabrication strategies that address these limitations of conventional VCSELs are presented. Specialized design of epitaxial materials and etching processes, together with printing-based deterministic assemblies and substrate thermal engineering, enabled defect-free release of microscale VCSELs and their device- and circuit-level implementation on non-native, flexible substrates with performance comparable to devices on the growth substrate.

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Dongseok Kang, Sung-Min Lee, Anthony Kwong, and Jongseung Yoon "Compliant heterogeneous assemblies of micro-VCSELs as a new materials platform for integrated optoelectronics", Proc. SPIE 9381, Vertical-Cavity Surface-Emitting Lasers XIX, 93810S (4 March 2015); https://doi.org/10.1117/12.2080677

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KEYWORDS

Vertical cavity surface emitting lasers

Metals

Semiconducting wafers

Positron emission tomography

Etching

Optoelectronics

Silicon

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