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DOI	10.1126/science.abk2593
	Detecting mid-infrared light by molecular frequency upconversion in dual-wavelength nanoantennas
	Xomalis A.; Zheng X.; Chikkaraddy R.; Koczor-Benda Z.; Miele E.; Rosta E.; Vandenbosch G.A.E.; Martínez A.; Baumberg J.J.
发表日期	2021
ISSN	0036-8075
起始页码	1268
结束页码	1271
卷号	374 期号:6572
英文摘要	Coherent interconversion of signals between optical and mechanical domains is enabled by optomechanical interactions. Extreme light-matter coupling produced by confining light to nanoscale mode volumes can then access single mid-infrared (MIR) photon sensitivity. Here, we used the infrared absorption and Raman activity of molecular vibrations in plasmonic nanocavities to demonstrate frequency upconversion. We converted approximately 10-micrometer-wavelength incoming light to visible light by surface-enhanced Raman scattering (SERS) in doubly resonant antennas that enhanced upconversion by more than 1010. We showed 140% amplification of the SERS anti-Stokes emission when an MIR pump was tuned to a molecular vibrational frequency, obtaining lowest detectable powers of 1 to 10 microwatts per square micrometer at room temperature. These results have potential for low-cost and large-scale infrared detectors and spectroscopic techniques. © 2021 American Association for the Advancement of Science. All rights reserved.
英文关键词	amplification; coupling; molecular analysis; scattering; wavelength; article; infrared radiation; room temperature; surface enhanced Raman spectroscopy; vibration
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246077
作者单位	NanoPhotonics Centre, Cavendish Laboratory, Department of Physics, University of Cambridge, Cambridge, United Kingdom; Department of Electrical Engineering (ESAT-TELEMIC), KU Leuven, Leuven, Belgium; Department of Physics and Astronomy, University College London, London, United Kingdom; Department of Chemistry, University of Cambridge, Cambridge, United Kingdom; The Faraday Institution, Harwell Science and Innovation Campus, Oxford, United Kingdom; Nanophotonics Technology Center, Universitat Politècnica de València, Valencia, Spain
推荐引用方式 GB/T 7714	Xomalis A.,Zheng X.,Chikkaraddy R.,et al. Detecting mid-infrared light by molecular frequency upconversion in dual-wavelength nanoantennas[J],2021,374(6572).
APA	Xomalis A..,Zheng X..,Chikkaraddy R..,Koczor-Benda Z..,Miele E..,...&Baumberg J.J..(2021).Detecting mid-infrared light by molecular frequency upconversion in dual-wavelength nanoantennas.Science,374(6572).
MLA	Xomalis A.,et al."Detecting mid-infrared light by molecular frequency upconversion in dual-wavelength nanoantennas".Science 374.6572(2021).