Continuous-wave frequency upconversion with a molecular optomechanical nanocavity

被引：96

作者：

Chen, Wen ^{[1
]}

Roelli, Philippe ^{[1
,6
]}

Hu, Huatian ^{[2
]}

Verlekar, Sachin ^{[1
]}

Amirtharaj, Sakthi Priya ^{[1
]}

Barreda, Angela, I ^{[3
]}

Kippenberg, Tobias J. ^{[1
]}

Kovylina, Miroslavna ^{[4
]}

Verhagen, Ewold ^{[5
]}

Martinez, Alejandro ^{[4
]}

Galland, Christophe ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne EPFL, Inst Phys, CH-1015 Lausanne, Switzerland

[2] Wuhan Inst Technol, Hubei Key Lab Opt Informat & Pattern Recognit, Wuhan 430205, Peoples R China

[3] Friedrich Schiller Univ Jena, Abbe Ctr Photon, Inst Appl Phys, D-07745 Jena, Germany

[4] Univ Politecn Valencia, Nanophoton Technol Ctr, Valencia 46022, Spain

[5] AMOLF, Ctr Nanophoton, NL-1098 XG Amsterdam, Netherlands

[6] CIC NanoGUNE BRTA, Nanoopt Grp, E-20018 San Sebastian, Spain

来源：

SCIENCE | 2021年 / 374卷 / 6572期

基金：

欧洲研究理事会; 瑞士国家科学基金会;

关键词：

ENHANCED RAMAN-SCATTERING; SPECTROSCOPY; RADIATION; MICROWAVE; ARRAYS;

D O I：

10.1126/science.abk3106

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Coherent upconversion of terahertz and mid-infrared signals into visible light opens new horizons for spectroscopy, imaging, and sensing but represents a challenge for conventional nonlinear optics. Here, we used a plasmonic nanocavity hosting a few hundred molecules to demonstrate optomechanical transduction of submicrowatt continuous-wave signals from the mid-infrared (32 terahertz) onto the visible domain at ambient conditions. The incoming field resonantly drives a collective molecular vibration, which imprints a coherent modulation on a visible pump laser and results in upconverted Raman sidebands with subnatural linewidth. Our dual-band nanocavity offers an estimated 13 orders of magnitude enhancement in upconversion efficiency per molecule. Our results demonstrate that molecular cavity optomechanics is a flexible paradigm for frequency conversion leveraging tailorable molecular and plasmonic properties.

引用

页码：1264 / +

页数：44

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