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Cryogenic photoluminescence imaging system for nanoscale positioning of single quantum emitters

Cryogenic photoluminescence imaging system for nanoscale positioning of single quantum emitters
Cryogenic photoluminescence imaging system for nanoscale positioning of single quantum emitters
We report a photoluminescence imaging system for locating single quantum emitters with respect to alignment features. Samples are interrogated in a 4 K closed-cycle cryostat by a high numerical aperture (NA = 0.9, 100× magnification) objective that sits within the cryostat, enabling high efficiency collection of emitted photons without image distortions due to the cryostat windows. The locations of single InAs/GaAs quantum dots within a >50 μm × 50 μm field of view are determined with ≈4.5 nm uncertainty (one standard deviation) in a 1 s long acquisition. The uncertainty is determined through a combination of a maximum likelihood estimate for localizing the quantum dot emission, and a cross correlation method for determining the alignment mark center. This location technique can be an important step in the high-throughput creation of nanophotonic devices that rely upon the interaction of highly confined optical modes with single quantum emitters.
0034-6748
Liu, Jin
3d7dc193-ccff-42de-9b7c-20a39781eb2d
Davanco, Marcelo
cfacc6c8-a09b-4b66-95e5-074b69930d91
Sapienza, Luca
a2e0cf6c-1f22-4a5a-87a2-ffab0e24e6ac
Konthasinghe, Kumarasiri
822ab23c-b157-4133-84e0-f103d6a04451
De Miranda Cardoso, Jose Vinicus
35c1ec54-37db-4356-9e91-13f4a3e0d186
Dong Song, Jin
b6eaca8c-d37d-4fae-8f5b-2264184e080f
Badolato, Antonio
73373515-ce29-49dc-9137-412c5f55a574
Srinivasan, Kartik
419dfd1a-2440-44de-9530-7aaa9383bc15
Liu, Jin
3d7dc193-ccff-42de-9b7c-20a39781eb2d
Davanco, Marcelo
cfacc6c8-a09b-4b66-95e5-074b69930d91
Sapienza, Luca
a2e0cf6c-1f22-4a5a-87a2-ffab0e24e6ac
Konthasinghe, Kumarasiri
822ab23c-b157-4133-84e0-f103d6a04451
De Miranda Cardoso, Jose Vinicus
35c1ec54-37db-4356-9e91-13f4a3e0d186
Dong Song, Jin
b6eaca8c-d37d-4fae-8f5b-2264184e080f
Badolato, Antonio
73373515-ce29-49dc-9137-412c5f55a574
Srinivasan, Kartik
419dfd1a-2440-44de-9530-7aaa9383bc15

Liu, Jin, Davanco, Marcelo, Sapienza, Luca, Konthasinghe, Kumarasiri, De Miranda Cardoso, Jose Vinicus, Dong Song, Jin, Badolato, Antonio and Srinivasan, Kartik (2017) Cryogenic photoluminescence imaging system for nanoscale positioning of single quantum emitters. Review of Scientific Instruments, 88 (2), [023116]. (doi:10.1063/1.4976578).

Record type: Article

Abstract

We report a photoluminescence imaging system for locating single quantum emitters with respect to alignment features. Samples are interrogated in a 4 K closed-cycle cryostat by a high numerical aperture (NA = 0.9, 100× magnification) objective that sits within the cryostat, enabling high efficiency collection of emitted photons without image distortions due to the cryostat windows. The locations of single InAs/GaAs quantum dots within a >50 μm × 50 μm field of view are determined with ≈4.5 nm uncertainty (one standard deviation) in a 1 s long acquisition. The uncertainty is determined through a combination of a maximum likelihood estimate for localizing the quantum dot emission, and a cross correlation method for determining the alignment mark center. This location technique can be an important step in the high-throughput creation of nanophotonic devices that rely upon the interaction of highly confined optical modes with single quantum emitters.

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Accepted/In Press date: 2 February 2017
e-pub ahead of print date: 23 February 2017
Published date: February 2017
Organisations: Quantum, Light & Matter Group

Identifiers

Local EPrints ID: 408689
URI: http://eprints.soton.ac.uk/id/eprint/408689
ISSN: 0034-6748
PURE UUID: eb5fc4d4-2da6-489c-92c0-2820b9674cef

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Date deposited: 26 May 2017 04:02
Last modified: 06 Oct 2020 23:03

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