Quantum Fluctuations and Lineshape Anomaly in a High‐ β Silver‐Coated InP‐Based Metallic Nanolaser

Journal Article · 30 June 2022 · Laser & Photonics Reviews

DOI: https://doi.org/10.1002/lpor.202200086 · OSTI ID:1874730

Koulas‐Simos, Aris ^[1]; Buchgeister, Joel ^[2]; Drechsler, Monty L. ^[2]; Zhang, Taiping ^[3]; Laiho, Kaisa ^[1]; Sinatkas, Georgios ^[1]; Xu, Jialu ^[3]; Lohof, Frederik ^[2]; Kan, Qiang ^[4]; Zhang, Ruikang K. ^[4]; Jahnke, Frank ^[2]; Gies, Christopher  ^[2]; Chow, Weng W. ^[5]; Ning, Cun‐Zheng ^[6]; Reitzenstein, Stephan  ^[1]

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1. Institut für Festkörperphysik Technische Universität Berlin Hardenbergstr. 36 10623 Berlin Germany
2. Institut für Theoretische Physik Universität Bremen Otto‐Hahn‐Allee 1 28359 Bremen Germany, Bremen Center for Computational Material Science Universität Bremen Am Fallturm 1 28359 Bremen Germany
3. Department of Electronic Engineering Tsinghua University Beijing 100084 China
4. Institute of Semiconductors Chinese Academy of Sciences Beijing 100083 China
5. Sandia National Laboratories Albuquerque NM 87123 USA
6. Department of Electronic Engineering Tsinghua University Beijing 100084 China, School of Electrical, Computer and Energy Engineering Arizona State University 650 E Tyler Mall Tempe AZ 85281 USA

Abstract Metallic nanocavity lasers provide important technological advancement toward even smaller integrable light sources. They give access to widely unexplored lasing physics in which the distinction between different operational regimes, like those of thermal or coherent light emission, becomes increasingly challenging upon approaching a device with a near‐perfect spontaneous‐emission coupling factor . In fact, quantum‐optical studies have to be employed to reveal a transition to coherent emission in the intensity fluctuation behavior of nanolasers when the input–output characteristic appears thresholdless for nanolasers. Here, a new indicator for lasing operation in high‐ lasers is identified by showing that stimulated emission can give rise to a lineshape anomaly manifested as a transition from a Lorentzian to a Gaussian component in the emission linewidth that dominates the spectrum above the lasing threshold.

• Sponsoring Organization: USDOE
• OSTI ID: 1874730
• Journal Information: Laser & Photonics Reviews, Journal Name: Laser & Photonics Reviews Journal Issue: 9 Vol. 16; ISSN 1863-8880
• Publisher: Wiley Blackwell (John Wiley & Sons)Copyright Statement
• Country of Publication: Germany
• Language: English