Engineering Directionality in Quantum Dot Shell Lasing Using Plasmonic Lattices

Jun Guan; Laxmi Kishore Sagar; Ran Li; Danqing Wang; Golam Bappi; Nicolas E. Watkins; Marc R. Bourgeois; Larissa Levina; Fengjia Fan; Sjoerd Hoogland; Oleksandr Voznyy; Joao Martins De Pina; Richard D. Schaller; George C. Schatz; Edward H. Sargent; Teri W. Odom

doi:10.1021/acs.nanolett.9b05342

Engineering Directionality in Quantum Dot Shell Lasing Using Plasmonic Lattices

Jun Guan, Laxmi Kishore Sagar, Ran Li, Danqing Wang, Golam Bappi, Nicolas E. Watkins, Marc R. Bourgeois, Larissa Levina, Fengjia Fan, Sjoerd Hoogland, Oleksandr Voznyy, Joao Martins De Pina, Richard D. Schaller, George C. Schatz, Edward H. Sargent, Teri W. Odom^*

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article

Abstract

We report how the direction of quantum dot (QD) lasing can be engineered by exploiting high-symmetry points in plasmonic nanoparticle (NP) lattices. The nanolaser architecture consists of CdSe-CdS core-shell QD layers conformally coated on two-dimensional square arrays of Ag NPs. Using waveguide-surface lattice resonances (W-SLRs) near the Δpoint in the Brillouin zone as optical feedback, we achieved lasing from the gain in CdS shells at off-normal emission angles. Changing the periodicity of the plasmonic lattices enables other high-symmetry points (Î" or M) of the lattice to overlap with the QD shell emission, which facilitates tuning of the lasing direction. We also increased the thickness of the QD layer to introduce higher-order W-SLR modes with additional avoided crossings in the band structure, which expands the selection of cavity modes for any desired lasing emission angle.

Original language	English (US)
Pages (from-to)	1468-1474
Number of pages	7
Journal	Nano letters
Volume	20
Issue number	2
DOIs	https://doi.org/10.1021/acs.nanolett.9b05342
State	Published - Feb 12 2020

Keywords

band structure engineering
colloidal quantum dots
laser directionality
lattice plasmons
surface lattice resonances
waveguide

ASJC Scopus subject areas

Bioengineering
Chemistry(all)
Materials Science(all)
Condensed Matter Physics
Mechanical Engineering

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Guan, J., Sagar, L. K., Li, R., Wang, D., Bappi, G., Watkins, N. E., Bourgeois, M. R., Levina, L., Fan, F., Hoogland, S., Voznyy, O., Martins De Pina, J., Schaller, R. D., Schatz, G. C., Sargent, E. H., & Odom, T. W. (2020). Engineering Directionality in Quantum Dot Shell Lasing Using Plasmonic Lattices. Nano letters, 20(2), 1468-1474. https://doi.org/10.1021/acs.nanolett.9b05342

Guan, Jun ; Sagar, Laxmi Kishore ; Li, Ran ; Wang, Danqing ; Bappi, Golam ; Watkins, Nicolas E. ; Bourgeois, Marc R. ; Levina, Larissa ; Fan, Fengjia ; Hoogland, Sjoerd ; Voznyy, Oleksandr ; Martins De Pina, Joao ; Schaller, Richard D. ; Schatz, George C. ; Sargent, Edward H. ; Odom, Teri W. / Engineering Directionality in Quantum Dot Shell Lasing Using Plasmonic Lattices. In: Nano letters. 2020 ; Vol. 20, No. 2. pp. 1468-1474.

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abstract = "We report how the direction of quantum dot (QD) lasing can be engineered by exploiting high-symmetry points in plasmonic nanoparticle (NP) lattices. The nanolaser architecture consists of CdSe-CdS core-shell QD layers conformally coated on two-dimensional square arrays of Ag NPs. Using waveguide-surface lattice resonances (W-SLRs) near the Δpoint in the Brillouin zone as optical feedback, we achieved lasing from the gain in CdS shells at off-normal emission angles. Changing the periodicity of the plasmonic lattices enables other high-symmetry points ({\^I}{"} or M) of the lattice to overlap with the QD shell emission, which facilitates tuning of the lasing direction. We also increased the thickness of the QD layer to introduce higher-order W-SLR modes with additional avoided crossings in the band structure, which expands the selection of cavity modes for any desired lasing emission angle.",

keywords = "band structure engineering, colloidal quantum dots, laser directionality, lattice plasmons, surface lattice resonances, waveguide",

author = "Jun Guan and Sagar, {Laxmi Kishore} and Ran Li and Danqing Wang and Golam Bappi and Watkins, {Nicolas E.} and Bourgeois, {Marc R.} and Larissa Levina and Fengjia Fan and Sjoerd Hoogland and Oleksandr Voznyy and {Martins De Pina}, Joao and Schaller, {Richard D.} and Schatz, {George C.} and Sargent, {Edward H.} and Odom, {Teri W.}",

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Engineering Directionality in Quantum Dot Shell Lasing Using Plasmonic Lattices. / Guan, Jun; Sagar, Laxmi Kishore; Li, Ran; Wang, Danqing; Bappi, Golam; Watkins, Nicolas E.; Bourgeois, Marc R.; Levina, Larissa; Fan, Fengjia; Hoogland, Sjoerd; Voznyy, Oleksandr; Martins De Pina, Joao; Schaller, Richard D.; Schatz, George C.; Sargent, Edward H.; Odom, Teri W.

In: Nano letters, Vol. 20, No. 2, 12.02.2020, p. 1468-1474.

Research output: Contribution to journal › Article

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T1 - Engineering Directionality in Quantum Dot Shell Lasing Using Plasmonic Lattices

AU - Guan, Jun

AU - Sagar, Laxmi Kishore

AU - Li, Ran

AU - Wang, Danqing

AU - Bappi, Golam

AU - Watkins, Nicolas E.

AU - Bourgeois, Marc R.

AU - Levina, Larissa

AU - Fan, Fengjia

AU - Hoogland, Sjoerd

AU - Voznyy, Oleksandr

AU - Martins De Pina, Joao

AU - Schaller, Richard D.

AU - Schatz, George C.

AU - Sargent, Edward H.

AU - Odom, Teri W.

PY - 2020/2/12

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