Coarse and fine-tuning of lasing transverse electromagnetic modes in coupled all-inorganic perovskite quantum dots

Youngsin Park; Guanhua Ying; Atanu Jana; Vitaly Osokin; Claudius Kocher; Tristan Farrow; Robert A. Taylor; Kwang S. Kim

doi:10.1007/s12274-020-3051-y

Coarse and fine-tuning of lasing transverse electromagnetic modes in coupled all-inorganic perovskite quantum dots

Youngsin Park, Guanhua Ying, Atanu Jana, Vitaly Osokin, Claudius Kocher, Tristan Farrow, Robert A. Taylor, Kwang S. Kim

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

Abstract

Inorganic perovskite lasers are of particular interest, with much recent work focusing on Fabry-Pérot cavity-forming nanowires. We demonstrate the direct observation of lasing from transverse electromagnetic (TEM) modes with a long coherence time ∼ 9.5 ps in coupled CsPbBr3 quantum dots, which dispense with an external cavity resonator and show how the wavelength of the modes can be controlled via two independent tuning-mechanisms. Controlling the pump power allowed us to fine-tune the TEM mode structure to the emission wavelength, thus providing a degree of control over the properties of the lasing signal. The temperature-tuning provided an additional degree of control over the wavelength of the lasing peak, importantly, maintained a constant full width at half maximum (FWHM) over the entire tuning range without mode-hopping.

Original language	American English
Pages (from-to)	108-113
Number of pages	6
Journal	Nano Research
Volume	14
Issue number	1
DOIs	https://doi.org/10.1007/s12274-020-3051-y
Publication status	Published - 1 Sept 2020
Externally published	Yes

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title = "Coarse and fine-tuning of lasing transverse electromagnetic modes in coupled all-inorganic perovskite quantum dots",

abstract = "Inorganic perovskite lasers are of particular interest, with much recent work focusing on Fabry-P{\'e}rot cavity-forming nanowires. We demonstrate the direct observation of lasing from transverse electromagnetic (TEM) modes with a long coherence time ∼ 9.5 ps in coupled CsPbBr3 quantum dots, which dispense with an external cavity resonator and show how the wavelength of the modes can be controlled via two independent tuning-mechanisms. Controlling the pump power allowed us to fine-tune the TEM mode structure to the emission wavelength, thus providing a degree of control over the properties of the lasing signal. The temperature-tuning provided an additional degree of control over the wavelength of the lasing peak, importantly, maintained a constant full width at half maximum (FWHM) over the entire tuning range without mode-hopping.",

author = "Youngsin Park and Guanhua Ying and Atanu Jana and Vitaly Osokin and Claudius Kocher and Tristan Farrow and Taylor, {Robert A.} and Kim, {Kwang S.}",

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doi = "10.1007/s12274-020-3051-y",

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TY - JOUR

T1 - Coarse and fine-tuning of lasing transverse electromagnetic modes in coupled all-inorganic perovskite quantum dots

AU - Park, Youngsin

AU - Ying, Guanhua

AU - Jana, Atanu

AU - Osokin, Vitaly

AU - Kocher, Claudius

AU - Farrow, Tristan

AU - Taylor, Robert A.

AU - Kim, Kwang S.

PY - 2020/9/1

Y1 - 2020/9/1

N2 - Inorganic perovskite lasers are of particular interest, with much recent work focusing on Fabry-Pérot cavity-forming nanowires. We demonstrate the direct observation of lasing from transverse electromagnetic (TEM) modes with a long coherence time ∼ 9.5 ps in coupled CsPbBr3 quantum dots, which dispense with an external cavity resonator and show how the wavelength of the modes can be controlled via two independent tuning-mechanisms. Controlling the pump power allowed us to fine-tune the TEM mode structure to the emission wavelength, thus providing a degree of control over the properties of the lasing signal. The temperature-tuning provided an additional degree of control over the wavelength of the lasing peak, importantly, maintained a constant full width at half maximum (FWHM) over the entire tuning range without mode-hopping.

AB - Inorganic perovskite lasers are of particular interest, with much recent work focusing on Fabry-Pérot cavity-forming nanowires. We demonstrate the direct observation of lasing from transverse electromagnetic (TEM) modes with a long coherence time ∼ 9.5 ps in coupled CsPbBr3 quantum dots, which dispense with an external cavity resonator and show how the wavelength of the modes can be controlled via two independent tuning-mechanisms. Controlling the pump power allowed us to fine-tune the TEM mode structure to the emission wavelength, thus providing a degree of control over the properties of the lasing signal. The temperature-tuning provided an additional degree of control over the wavelength of the lasing peak, importantly, maintained a constant full width at half maximum (FWHM) over the entire tuning range without mode-hopping.

U2 - 10.1007/s12274-020-3051-y

DO - 10.1007/s12274-020-3051-y

M3 - Artikel

VL - 14

SP - 108

EP - 113

JO - Nano Research

JF - Nano Research

IS - 1

ER -

Coarse and fine-tuning of lasing transverse electromagnetic modes in coupled all-inorganic perovskite quantum dots

Abstract

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