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Proceedings Paper

Anti-Stokes photoluminescence and optical cooling of CdSeS/ZnS colloidal quantum dots embedded in dielectric waveguides
Author(s): Mark V. Reymatias; Gema J. Alas; Arjun Senthil; Sami A. Nazib; Troy A. Hutchins-Delgado; Hosuk Lee; Shruti I. Gharde; Dominic Bosomtwi; DeYannah J. Walker; Adreanna Rael; Nathan J. Withers; Gennady A. Smolyakov; Alexander Neumann; Yuliya Kuznetsova; Sergei A. Ivanov; Dale L. Huber; Marek Osiński
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Paper Abstract

Anti-Stokes photoluminescence from colloidal CdSeS/ZnS quantum dots (QDs) is observed. The QDs were inserted into the core of wider-bandgap SiO2/Si3N4/SiO2 structure by thin film deposition and confirmed as promising nanoemitters for laser cooling due to efficient anti-Stokes emission. The nanoemitters were optically pumped by semiconductor lasers coupled to the waveguides using free-space optics. A direct evidence of local optical cooling in the waveguide structure has been demonstrated with a luminescence thermometry based on the detection of photoluminescence signal phase change versus power of the pumping laser, using a lock-in amplifier.

Paper Details

Date Published: 9 March 2020
PDF: 12 pages
Proc. SPIE 11298, Photonic Heat Engines: Science and Applications II, 112980P (9 March 2020); doi: 10.1117/12.2550748
Show Author Affiliations
Mark V. Reymatias, The Univ. of New Mexico (United States)
Gema J. Alas, The Univ. of New Mexico (United States)
Arjun Senthil, The Univ. of New Mexico (United States)
Sami A. Nazib, The Univ. of New Mexico (United States)
Troy A. Hutchins-Delgado, The Univ. of New Mexico (United States)
Hosuk Lee, The Univ. of New Mexico (United States)
Shruti I. Gharde, The Univ. of New Mexico (United States)
Dominic Bosomtwi, The Univ. of New Mexico (United States)
DeYannah J. Walker, The Univ. of New Mexico (United States)
Adreanna Rael, The Univ. of New Mexico (United States)
Nathan J. Withers, The Univ. of New Mexico (United States)
Gennady A. Smolyakov, The Univ. of New Mexico (United States)
Alexander Neumann, The Univ. of New Mexico (United States)
Yuliya Kuznetsova, Picotek LLC (United States)
Sergei A. Ivanov, Los Alamos National Lab. (United States)
Dale L. Huber, Sandia National Labs. (United States)
Marek Osiński, The Univ. of New Mexico (United States)


Published in SPIE Proceedings Vol. 11298:
Photonic Heat Engines: Science and Applications II
Denis V. Seletskiy; Richard I. Epstein; Mansoor Sheik-Bahae, Editor(s)

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