Five-fold reduction of lasing threshold near the first Γl-pseudogap of ZnO inverse opals

Michael Scharrer; Heeso Noh; Xiaohua Wu; Mark A. Anderson; Alexey Yamilov; Hui Cao; Robert P.H. Chang

doi:10.1088/2040-8978/12/2/024007

Five-fold reduction of lasing threshold near the first Γl-pseudogap of ZnO inverse opals

Michael Scharrer, Heeso Noh^*, Xiaohua Wu, Mark A. Anderson, Alexey Yamilov, Hui Cao, Robert P.H. Chang

^*Corresponding author for this work

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

We report room temperature lasing in ZnO inverse opal photonic crystals in the near-ultraviolet (UV) frequency range. We observe random lasing due to disorder in the structures when the photonic pseudogaps are located away from the ZnO gain spectrum. Tuning the first ΓL-pseudogap to the gain peak leads to a five-fold reduction in lasing threshold and a frequency shift of the lasing modes due to the enhanced confinement of light.

Original language	English (US)
Article number	024007
Journal	Journal of Optics A: Pure and Applied Optics
Volume	12
Issue number	2
DOIs	https://doi.org/10.1088/2040-8978/12/2/024007
State	Published - 2010

Keywords

3D photonic crystals
Opal
Random laser
ZnO

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1088/2040-8978/12/2/024007

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title = "Five-fold reduction of lasing threshold near the first Γl-pseudogap of ZnO inverse opals",

abstract = "We report room temperature lasing in ZnO inverse opal photonic crystals in the near-ultraviolet (UV) frequency range. We observe random lasing due to disorder in the structures when the photonic pseudogaps are located away from the ZnO gain spectrum. Tuning the first ΓL-pseudogap to the gain peak leads to a five-fold reduction in lasing threshold and a frequency shift of the lasing modes due to the enhanced confinement of light.",

keywords = "3D photonic crystals, Opal, Random laser, ZnO",

author = "Michael Scharrer and Heeso Noh and Xiaohua Wu and Anderson, {Mark A.} and Alexey Yamilov and Hui Cao and Chang, {Robert P.H.}",

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T1 - Five-fold reduction of lasing threshold near the first Γl-pseudogap of ZnO inverse opals

AU - Scharrer, Michael

AU - Noh, Heeso

AU - Wu, Xiaohua

AU - Anderson, Mark A.

AU - Yamilov, Alexey

AU - Cao, Hui

AU - Chang, Robert P.H.

PY - 2010

Y1 - 2010

N2 - We report room temperature lasing in ZnO inverse opal photonic crystals in the near-ultraviolet (UV) frequency range. We observe random lasing due to disorder in the structures when the photonic pseudogaps are located away from the ZnO gain spectrum. Tuning the first ΓL-pseudogap to the gain peak leads to a five-fold reduction in lasing threshold and a frequency shift of the lasing modes due to the enhanced confinement of light.

AB - We report room temperature lasing in ZnO inverse opal photonic crystals in the near-ultraviolet (UV) frequency range. We observe random lasing due to disorder in the structures when the photonic pseudogaps are located away from the ZnO gain spectrum. Tuning the first ΓL-pseudogap to the gain peak leads to a five-fold reduction in lasing threshold and a frequency shift of the lasing modes due to the enhanced confinement of light.

KW - 3D photonic crystals

KW - Opal

KW - Random laser

KW - ZnO

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DO - 10.1088/2040-8978/12/2/024007

M3 - Article

AN - SCOPUS:75849165117

SN - 1464-4258

VL - 12

JO - Journal of Optics A: Pure and Applied Optics

JF - Journal of Optics A: Pure and Applied Optics

IS - 2

M1 - 024007

ER -

Five-fold reduction of lasing threshold near the first Γl-pseudogap of ZnO inverse opals

Abstract

Keywords

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