Ultrafast Dynamics of Lattice Plasmon Lasers

Weijia Wang; Nicolas Watkins; Ankun Yang; Richard D. Schaller; George C. Schatz; Teri W. Odom

doi:10.1021/acs.jpclett.9b01076

Ultrafast Dynamics of Lattice Plasmon Lasers

Weijia Wang, Nicolas Watkins, Ankun Yang, Richard D. Schaller, George C. Schatz, Teri W. Odom

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Lattice plasmon cavity modes combined with optical gain can exhibit directional and tunable lasing emission at room temperature. However, the mechanistic details governing the dynamics before lasing action are not understood. This paper describes how the long photon lifetimes of lattice plasmon modes can be correlated with the ultrafast dynamics of lasing action and amplified spontaneous emission. Lasing from band-edge plasmons and amplified spontaneous emission from propagating plasmons showed rise times on the order of tens of picoseconds, during which inverted population in the gain was first generated and then followed by energy transfer to the lattice plasmon cavity for enhanced light emission.

Original language	English
Pages (from-to)	3301-3306
Number of pages	6
Journal	Journal of Physical Chemistry Letters
Volume	10
Issue number	12
DOIs	https://doi.org/10.1021/acs.jpclett.9b01076
Publication status	Published - Jun 20 2019

ASJC Scopus subject areas

Materials Science(all)
Physical and Theoretical Chemistry

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abstract = "Lattice plasmon cavity modes combined with optical gain can exhibit directional and tunable lasing emission at room temperature. However, the mechanistic details governing the dynamics before lasing action are not understood. This paper describes how the long photon lifetimes of lattice plasmon modes can be correlated with the ultrafast dynamics of lasing action and amplified spontaneous emission. Lasing from band-edge plasmons and amplified spontaneous emission from propagating plasmons showed rise times on the order of tens of picoseconds, during which inverted population in the gain was first generated and then followed by energy transfer to the lattice plasmon cavity for enhanced light emission.",

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AU - Wang, Weijia

AU - Watkins, Nicolas

AU - Yang, Ankun

AU - Schaller, Richard D.

AU - Schatz, George C.

AU - Odom, Teri W.

PY - 2019/6/20

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AB - Lattice plasmon cavity modes combined with optical gain can exhibit directional and tunable lasing emission at room temperature. However, the mechanistic details governing the dynamics before lasing action are not understood. This paper describes how the long photon lifetimes of lattice plasmon modes can be correlated with the ultrafast dynamics of lasing action and amplified spontaneous emission. Lasing from band-edge plasmons and amplified spontaneous emission from propagating plasmons showed rise times on the order of tens of picoseconds, during which inverted population in the gain was first generated and then followed by energy transfer to the lattice plasmon cavity for enhanced light emission.

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