Phonon-Assisted Anti-Stokes Lasing in ZnTe Nanoribbons

Qing Zhang; Xinfeng Liu; M Iqbal Bakti Utama; Guichuan Xing; Tze Chien Sum; Qihua Xiong

doi:10.1002/adma.201502154

Phonon-Assisted Anti-Stokes Lasing in ZnTe Nanoribbons

Adv Mater. 2016 Jan 13;28(2):276-83. doi: 10.1002/adma.201502154. Epub 2015 Nov 17.

Authors

Qing Zhang¹, Xinfeng Liu^{1

2

3}, M Iqbal Bakti Utama¹, Guichuan Xing^{1

2

3}, Tze Chien Sum^{1

2

3}, Qihua Xiong^{1

4}

Affiliations

¹ Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, Singapore.
² Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, 50 Nanyang Drive, 637553, Singapore.
³ Singapore-Berkeley Research Initiative for Sustainable Energy, 1 Create Way, Singapore, 138602, Singapore.
⁴ NOVITAS, Nanoelectronics Centre of Excellence, School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, 639798.

PMID: 26573758
DOI: 10.1002/adma.201502154

Abstract

Phonon-assisted anti-Stokes emission and its stimulated emission in polar semiconductor ZnTe are demonstrated via the annihilation of phonons as a result of strong exciton-phonon coupling. The findings are not only important for developing high-power radiation-balanced lasers, but are also promising for manufacturing ultraefficient solid-state laser coolers.

Keywords: anti-Stokes emission; exciton-phonon coupling; laser cooling; upconversion lasing; zinc telluride.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Lasers, Semiconductor*
Lasers, Solid-State
Microscopy, Electron, Scanning
Nanostructures* / chemistry
Phonons*
Spectrum Analysis, Raman
Tellurium* / chemistry
Temperature
Zinc Compounds* / chemical synthesis
Zinc Compounds* / chemistry

Substances

Zinc Compounds
Tellurium