Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/89950
Title: Coherent excitation-selective spectroscopy of multipole resonances
Authors: Fang, Xu
Tseng, Ming Lun
Tsai, Din Ping
Zheludev, Nikolay I.
Keywords: Dielectric Materials
Antennas
DRNTU::Science::Physics
Issue Date: 2016
Source: Fang, X., Tseng, M. L., Tsai, D. P., & Zheludev, N. I. (2016). Coherent Excitation-Selective Spectroscopy of Multipole Resonances. Physical Review Applied, 5(1), 014010-. doi:10.1103/PhysRevApplied.5.014010
Series/Report no.: Physical Review Applied
Abstract: Thin films of functional materials, from graphene to semiconductor heterostructures, and from nanomembranes to Langmuir-Blodgett films play key roles in modern technologies. For such films optical interrogation is the main and often the only practical method of characterization. Here, we show that characterization of the optical response of thin films can be greatly improved with a type of coherent spectroscopy using two counterpropagating beams of light. The spectroscopy is selective to particular types of multipole resonances that form the absorption spectrum of the film, and therefore can reveal lines that are hidden in conventional absorption spectroscopy. We explicitly demonstrate selectivity of this spectroscopy in a series of proof-of-principle experiments with plasmonic metamaterial arrays designed to exhibit different multipole resonances. We further demonstrate the analytic potential of this spectroscopy by extracting the hidden resonance from the spectrum of a complex nanostructure.
URI: https://hdl.handle.net/10356/89950
http://hdl.handle.net/10220/46463
DOI: 10.1103/PhysRevApplied.5.014010
Schools: School of Physical and Mathematical Sciences 
Research Centres: Centre for Disruptive Photonic Technologies (CDPT) 
Rights: © 2016 American Physical Society. This paper was published in Physical Review Applied and is made available as an electronic reprint (preprint) with permission of American Physical Society. The published version is available at: [http://dx.doi.org/10.1103/PhysRevApplied.5.014010]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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