Mechanical interaction in near-field spectroscopy of single semiconductor quantum dots

A. M. Mintairov; P. A. Blagnov; O. V. Kovalenkov; C. Li; J. L. Merz; S. Oktyabrsky; V. Tokranov; A. S. Vlasov; D. A. Vinokurov

doi:10.1557/proc-722-k11.2

Mechanical interaction in near-field spectroscopy of single semiconductor quantum dots

A. M. Mintairov
, P. A. Blagnov
, O. V. Kovalenkov
, C. Li
, J. L. Merz
, S. Oktyabrsky
, V. Tokranov
, A. S. Vlasov
, D. A. Vinokurov

University at Albany

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

1 Scopus citations

Abstract

We have studied high-energy shifts of single quantum dot (QD) emission lines induced by contact pressure exerted by a near-field optical fiber tip. "Pressure" coefficients of 0.65-3 meV/nm have been measured for self-organized InAs/GaAs, InAs/AlAs and InP/GaInP QDs in agreement with numerical calculations of the local strain field. We found an increase of the tip-induced pressure with increasing aperture diameter from 50-300 nm. A correlation between the shift rate and QD stiffness was obtained. We also observed an order of magnitude increase of single QD emission intensity with increased pressure.

Original language	English
Pages (from-to)	319-324
Number of pages	6
Journal	Materials Research Society Symposium - Proceedings
Volume	722
DOIs	https://doi.org/10.1557/proc-722-k11.2
State	Published - 2002
Event	Materials and Devices for Optoelectronics and Microphotonics - San Francisco, CA, United States Duration: Apr 1 2002 → Apr 5 2002

Access to Document

10.1557/proc-722-k11.2

Cite this

@article{476b91c068014f75a9fa3d3591e9edb6,

title = "Mechanical interaction in near-field spectroscopy of single semiconductor quantum dots",

abstract = "We have studied high-energy shifts of single quantum dot (QD) emission lines induced by contact pressure exerted by a near-field optical fiber tip. {"}Pressure{"} coefficients of 0.65-3 meV/nm have been measured for self-organized InAs/GaAs, InAs/AlAs and InP/GaInP QDs in agreement with numerical calculations of the local strain field. We found an increase of the tip-induced pressure with increasing aperture diameter from 50-300 nm. A correlation between the shift rate and QD stiffness was obtained. We also observed an order of magnitude increase of single QD emission intensity with increased pressure.",

author = "Mintairov, \{A. M.\} and Blagnov, \{P. A.\} and Kovalenkov, \{O. V.\} and C. Li and Merz, \{J. L.\} and S. Oktyabrsky and V. Tokranov and Vlasov, \{A. S.\} and Vinokurov, \{D. A.\}",

year = "2002",

doi = "10.1557/proc-722-k11.2",

language = "English",

volume = "722",

pages = "319--324",

journal = "Materials Research Society Symposium - Proceedings",

issn = "0272-9172",

note = "Materials and Devices for Optoelectronics and Microphotonics ; Conference date: 01-04-2002 Through 05-04-2002",

}

TY - JOUR

T1 - Mechanical interaction in near-field spectroscopy of single semiconductor quantum dots

AU - Mintairov, A. M.

AU - Blagnov, P. A.

AU - Kovalenkov, O. V.

AU - Li, C.

AU - Merz, J. L.

AU - Oktyabrsky, S.

AU - Tokranov, V.

AU - Vlasov, A. S.

AU - Vinokurov, D. A.

PY - 2002

Y1 - 2002

N2 - We have studied high-energy shifts of single quantum dot (QD) emission lines induced by contact pressure exerted by a near-field optical fiber tip. "Pressure" coefficients of 0.65-3 meV/nm have been measured for self-organized InAs/GaAs, InAs/AlAs and InP/GaInP QDs in agreement with numerical calculations of the local strain field. We found an increase of the tip-induced pressure with increasing aperture diameter from 50-300 nm. A correlation between the shift rate and QD stiffness was obtained. We also observed an order of magnitude increase of single QD emission intensity with increased pressure.

AB - We have studied high-energy shifts of single quantum dot (QD) emission lines induced by contact pressure exerted by a near-field optical fiber tip. "Pressure" coefficients of 0.65-3 meV/nm have been measured for self-organized InAs/GaAs, InAs/AlAs and InP/GaInP QDs in agreement with numerical calculations of the local strain field. We found an increase of the tip-induced pressure with increasing aperture diameter from 50-300 nm. A correlation between the shift rate and QD stiffness was obtained. We also observed an order of magnitude increase of single QD emission intensity with increased pressure.

UR - https://www.scopus.com/pages/publications/0036458483

U2 - 10.1557/proc-722-k11.2

DO - 10.1557/proc-722-k11.2

M3 - Conference article

SN - 0272-9172

VL - 722

SP - 319

EP - 324

JO - Materials Research Society Symposium - Proceedings

JF - Materials Research Society Symposium - Proceedings

T2 - Materials and Devices for Optoelectronics and Microphotonics

Y2 - 1 April 2002 through 5 April 2002

ER -

Mechanical interaction in near-field spectroscopy of single semiconductor quantum dots

Abstract

Access to Document

Other files and links

Fingerprint

Cite this