2021年第82回応用物理学会秋季学術講演会

講演情報

一般セッション(口頭講演)

4 JSAP-OSA Joint Symposia 2021 » 4.1 Plasmonics and Nanophotonics

[10p-N404-1~14] 4.1 Plasmonics and Nanophotonics

2021年9月10日(金) 13:00 〜 17:45 N404 (口頭)

Verma Prabhat(阪大)、Smith Nicholas(阪大)

14:00 〜 14:15

[10p-N404-4] Plasmonic Nanolaser by Silver Nanowire Embedded in CsPbBr3 Quantum Dots

〇(D)Xing Di1、Cheng-Chieh Lin2、Phillip Won3、Rong Xiang1、Tzu-Pei Chen2、A. Syazwan A. Kamal1、Yang-Chun Lee1、Ya-Lun Ho1、Shigeo Maruyama1、Seung Hwan Ko3、Chun-Wei Chen1、Jean-Jacques Delaunay1 (1.The Univ. of Tokyo、2.National Taiwan Univ.、3.Seoul National Univ.)

キーワード:perovskite, plasmonic laser

Plasmonic nanolasers provide a valuable opportunity for expanding sub-wavelength applications in the fields of biosensing, nonlinear frequency generation, and optical switching. Due to the potential of on-chip integration, plasmonic nanolasers that support waveguide mode have attracted lots of interest. However, the performances of these nanolasers are mostly determined by the geometries of semiconductor gain media which are quite difficult to manipulate. Metallic nanowires (NW) can be easily manipulated to construct complex optical devices, which makes them ideal for on-chip devices. To date, a single metallic NW-based plasmonic nanolaser that supports waveguide mode laser has not been reported yet. Here, we demonstrate a single Ag NW-based plasmonic nanolasers by fully embedding the Ag NW in the CsPbBr perovskite quantum dots (QDs) film. By embedding Ag NWs in QDs film, an evolution from amplified spontaneous emission with an FWHM of 6.6 nm to localized surface plasmon resonance (LSPR) supported random lasing is observed. When the pump light is focused on a single Ag NW, a QD-NW coupled plasmonic-waveguide laser with a much narrower emission peak (FWHM = 0.4 nm) is realized on a single Ag NW with the uniform PVP layer.