Optical emission from individual InGaAs quantum dots in single-defect photonic crystal nanocavity

W. H. Chang; W. Y. Chen; H. S. Chang; T. M. Hsu; T. P. Hsieh; J. I. Chyi

doi:10.1063/1.1953885

Optical emission from individual InGaAs quantum dots in single-defect photonic crystal nanocavity

W. H. Chang
, W. Y. Chen
, H. S. Chang
, T. M. Hsu
, T. P. Hsieh
, J. I. Chyi

Department of Electrical Engineering

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

3 Scopus citations

Abstract

Collective and individual emissions from In0.5 Ga0.5 As quantum dots (QDs) in single-defect photonic crystal nanocavities are investigated. When the cavity mode is collectively excited by the QD ensemble, a pair of dipolelike modes with definite linear polarizations is shown. Under low excitations, single-exciton emission lines are resolved. The power dependence of individual QD emissions reveals a nearly tenfold light enhancement for on-resonance QDs. The polarization state of each individual QD is also investigated. It is found that an individual dot could excite either a pure dipole mode or a mixture of both dipole modes. This behavior can be attributed to the random distribution of QDs in the nanocavity.

Original language	English
Article number	034306
Journal	Journal of Applied Physics
Volume	98
Issue number	3
DOIs	https://doi.org/10.1063/1.1953885
State	Published - 1 Aug 2005

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title = "Optical emission from individual InGaAs quantum dots in single-defect photonic crystal nanocavity",

abstract = "Collective and individual emissions from In0.5 Ga0.5 As quantum dots (QDs) in single-defect photonic crystal nanocavities are investigated. When the cavity mode is collectively excited by the QD ensemble, a pair of dipolelike modes with definite linear polarizations is shown. Under low excitations, single-exciton emission lines are resolved. The power dependence of individual QD emissions reveals a nearly tenfold light enhancement for on-resonance QDs. The polarization state of each individual QD is also investigated. It is found that an individual dot could excite either a pure dipole mode or a mixture of both dipole modes. This behavior can be attributed to the random distribution of QDs in the nanocavity.",

author = "Chang, \{W. H.\} and Chen, \{W. Y.\} and Chang, \{H. S.\} and Hsu, \{T. M.\} and Hsieh, \{T. P.\} and Chyi, \{J. I.\}",

note = "Funding Information: The authors would like to thank Dr. C.C. Lee for his help with the e -beam lithography and Professor C.Y. Chang, Professor C.C. Chen, and Professor P.G. Luan for their help with the dry-etching processes and theoretical simulations. This work was supported by the National Science Council of Taiwan under Grant No. NSC-93-2120-M-008-001 and by CNST of UST. ",

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T1 - Optical emission from individual InGaAs quantum dots in single-defect photonic crystal nanocavity

AU - Chang, W. H.

AU - Chen, W. Y.

AU - Chang, H. S.

AU - Hsu, T. M.

AU - Hsieh, T. P.

AU - Chyi, J. I.

N1 - Funding Information: The authors would like to thank Dr. C.C. Lee for his help with the e -beam lithography and Professor C.Y. Chang, Professor C.C. Chen, and Professor P.G. Luan for their help with the dry-etching processes and theoretical simulations. This work was supported by the National Science Council of Taiwan under Grant No. NSC-93-2120-M-008-001 and by CNST of UST.

PY - 2005/8/1

Y1 - 2005/8/1

N2 - Collective and individual emissions from In0.5 Ga0.5 As quantum dots (QDs) in single-defect photonic crystal nanocavities are investigated. When the cavity mode is collectively excited by the QD ensemble, a pair of dipolelike modes with definite linear polarizations is shown. Under low excitations, single-exciton emission lines are resolved. The power dependence of individual QD emissions reveals a nearly tenfold light enhancement for on-resonance QDs. The polarization state of each individual QD is also investigated. It is found that an individual dot could excite either a pure dipole mode or a mixture of both dipole modes. This behavior can be attributed to the random distribution of QDs in the nanocavity.

AB - Collective and individual emissions from In0.5 Ga0.5 As quantum dots (QDs) in single-defect photonic crystal nanocavities are investigated. When the cavity mode is collectively excited by the QD ensemble, a pair of dipolelike modes with definite linear polarizations is shown. Under low excitations, single-exciton emission lines are resolved. The power dependence of individual QD emissions reveals a nearly tenfold light enhancement for on-resonance QDs. The polarization state of each individual QD is also investigated. It is found that an individual dot could excite either a pure dipole mode or a mixture of both dipole modes. This behavior can be attributed to the random distribution of QDs in the nanocavity.

UR - https://www.scopus.com/pages/publications/23944469894

U2 - 10.1063/1.1953885

DO - 10.1063/1.1953885

M3 - 期刊論文

AN - SCOPUS:23944469894

SN - 0021-8979

VL - 98

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 3

M1 - 034306

ER -

Optical emission from individual InGaAs quantum dots in single-defect photonic crystal nanocavity

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