Polarized cathodoluminescence study of (InP)2/(GaP)2 bilayer superlattice structures

Y. Tang; K. Rammohan; H. T. Lin; D. H. Rich; P. Colter; S. M. Vernon

doi:10.1557/proc-379-165

Polarized cathodoluminescence study of (InP)₂/(GaP)₂ bilayer superlattice structures

Y. Tang, K. Rammohan, H. T. Lin, D. H. Rich, P. Colter, S. M. Vernon

Research output: Contribution to journal › Conference article › peer-review

4 Scopus citations

Abstract

Linearly polarized cathodoluminescence (LPCL) imaging and spectroscopy techniques have been employed to examine the optical properties and homogeneity of (InP)₂/(GaP)₂ bilayer superlattice (BSL) structures which exhibit a lateral composition modulation that leads to the formation of quantum wires. LPCL spectra were measured for various temperature and electron beam excitation densities. The magnitude of the polarization anisotropy and spectral lineshape are found to depend sensitively on the excitation conditions, revealing large nonlinear optical effects in these samples. CL images reveal that defects in the bilayer superlattice structure originate from the GaAs substrate or the initial stages of InGaP growth.

Original language	English
Pages (from-to)	165-170
Number of pages	6
Journal	Materials Research Society Symposium - Proceedings
Volume	379
DOIs	https://doi.org/10.1557/proc-379-165
State	Published - 1 Jan 1995
Externally published	Yes
Event	Proceedings of the 1995 MRS Spring Meeting - San Francisco, CA, USA Duration: 17 Apr 1995 → 20 Apr 1995

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1557/proc-379-165

Cite this

@article{e456d5491f5e49679e0e3c8fab0f9f39,

title = "Polarized cathodoluminescence study of (InP)2/(GaP)2 bilayer superlattice structures",

abstract = "Linearly polarized cathodoluminescence (LPCL) imaging and spectroscopy techniques have been employed to examine the optical properties and homogeneity of (InP)2/(GaP)2 bilayer superlattice (BSL) structures which exhibit a lateral composition modulation that leads to the formation of quantum wires. LPCL spectra were measured for various temperature and electron beam excitation densities. The magnitude of the polarization anisotropy and spectral lineshape are found to depend sensitively on the excitation conditions, revealing large nonlinear optical effects in these samples. CL images reveal that defects in the bilayer superlattice structure originate from the GaAs substrate or the initial stages of InGaP growth.",

author = "Y. Tang and K. Rammohan and Lin, {H. T.} and Rich, {D. H.} and P. Colter and Vernon, {S. M.}",

year = "1995",

month = jan,

day = "1",

doi = "10.1557/proc-379-165",

language = "English",

volume = "379",

pages = "165--170",

journal = "Materials Research Society Symposium - Proceedings",

issn = "0272-9172",

publisher = "Materials Research Society",

note = "Proceedings of the 1995 MRS Spring Meeting ; Conference date: 17-04-1995 Through 20-04-1995",

}

TY - JOUR

T1 - Polarized cathodoluminescence study of (InP)2/(GaP)2 bilayer superlattice structures

AU - Tang, Y.

AU - Rammohan, K.

AU - Lin, H. T.

AU - Rich, D. H.

AU - Colter, P.

AU - Vernon, S. M.

PY - 1995/1/1

Y1 - 1995/1/1

N2 - Linearly polarized cathodoluminescence (LPCL) imaging and spectroscopy techniques have been employed to examine the optical properties and homogeneity of (InP)2/(GaP)2 bilayer superlattice (BSL) structures which exhibit a lateral composition modulation that leads to the formation of quantum wires. LPCL spectra were measured for various temperature and electron beam excitation densities. The magnitude of the polarization anisotropy and spectral lineshape are found to depend sensitively on the excitation conditions, revealing large nonlinear optical effects in these samples. CL images reveal that defects in the bilayer superlattice structure originate from the GaAs substrate or the initial stages of InGaP growth.

AB - Linearly polarized cathodoluminescence (LPCL) imaging and spectroscopy techniques have been employed to examine the optical properties and homogeneity of (InP)2/(GaP)2 bilayer superlattice (BSL) structures which exhibit a lateral composition modulation that leads to the formation of quantum wires. LPCL spectra were measured for various temperature and electron beam excitation densities. The magnitude of the polarization anisotropy and spectral lineshape are found to depend sensitively on the excitation conditions, revealing large nonlinear optical effects in these samples. CL images reveal that defects in the bilayer superlattice structure originate from the GaAs substrate or the initial stages of InGaP growth.

UR - http://www.scopus.com/inward/record.url?scp=0029509414&partnerID=8YFLogxK

U2 - 10.1557/proc-379-165

DO - 10.1557/proc-379-165

M3 - Conference article

AN - SCOPUS:0029509414

SN - 0272-9172

VL - 379

SP - 165

EP - 170

JO - Materials Research Society Symposium - Proceedings

JF - Materials Research Society Symposium - Proceedings

T2 - Proceedings of the 1995 MRS Spring Meeting

Y2 - 17 April 1995 through 20 April 1995

ER -

Polarized cathodoluminescence study of (InP)₂/(GaP)₂ bilayer superlattice structures

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this