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Title: Flexible nanomembrane photonic-crystal cavities for tensilely strained-germanium light emission

Abstract

Flexible photonic-crystal cavities in the form of Si-column arrays embedded in polymeric films are developed on Ge nanomembranes using direct membrane assembly. The resulting devices can sustain large biaxial tensile strain under mechanical stress, as a way to enhance the Ge radiative efficiency. Pronounced emission peaks associated with photonic-crystal cavity resonances are observed in photoluminescence measurements. These results show that ultrathin nanomembrane active layers can be effectively coupled to an optical cavity, while still preserving their mechanical flexibility. Thus, they are promising for the development of strain-enabled Ge lasers, and more generally uniquely flexible optoelectronic devices.

Authors:
; ;  [1]; ; ;  [2]
  1. Department of Electrical and Computer Engineering and Photonics Center, Boston University, 8 Saint Mary's Street, Boston, Massachusetts 02215 (United States)
  2. Department of Materials Science and Engineering, University of Wisconsin – Madison, 1509 University Avenue, Madison, Wisconsin 53706 (United States)
Publication Date:
OSTI Identifier:
22590776
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 108; Journal Issue: 24; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CRYSTALS; EFFICIENCY; FILMS; FLEXIBILITY; GERMANIUM; LASERS; LAYERS; MEMBRANES; OPTOELECTRONIC DEVICES; PEAKS; PHOTOLUMINESCENCE; RESONANCE; STRAINS; STRESSES; VISIBLE RADIATION

Citation Formats

Yin, Jian, Wang, Xiaowei, Paiella, Roberto, Cui, Xiaorui, Sookchoo, Pornsatit, and Lagally, Max G. Flexible nanomembrane photonic-crystal cavities for tensilely strained-germanium light emission. United States: N. p., 2016. Web. doi:10.1063/1.4954188.
Yin, Jian, Wang, Xiaowei, Paiella, Roberto, Cui, Xiaorui, Sookchoo, Pornsatit, & Lagally, Max G. Flexible nanomembrane photonic-crystal cavities for tensilely strained-germanium light emission. United States. doi:10.1063/1.4954188.
Yin, Jian, Wang, Xiaowei, Paiella, Roberto, Cui, Xiaorui, Sookchoo, Pornsatit, and Lagally, Max G. Mon . "Flexible nanomembrane photonic-crystal cavities for tensilely strained-germanium light emission". United States. doi:10.1063/1.4954188.
@article{osti_22590776,
title = {Flexible nanomembrane photonic-crystal cavities for tensilely strained-germanium light emission},
author = {Yin, Jian and Wang, Xiaowei and Paiella, Roberto and Cui, Xiaorui and Sookchoo, Pornsatit and Lagally, Max G.},
abstractNote = {Flexible photonic-crystal cavities in the form of Si-column arrays embedded in polymeric films are developed on Ge nanomembranes using direct membrane assembly. The resulting devices can sustain large biaxial tensile strain under mechanical stress, as a way to enhance the Ge radiative efficiency. Pronounced emission peaks associated with photonic-crystal cavity resonances are observed in photoluminescence measurements. These results show that ultrathin nanomembrane active layers can be effectively coupled to an optical cavity, while still preserving their mechanical flexibility. Thus, they are promising for the development of strain-enabled Ge lasers, and more generally uniquely flexible optoelectronic devices.},
doi = {10.1063/1.4954188},
journal = {Applied Physics Letters},
number = 24,
volume = 108,
place = {United States},
year = {Mon Jun 13 00:00:00 EDT 2016},
month = {Mon Jun 13 00:00:00 EDT 2016}
}