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New Lasers and Photonics Study Results from School of Electronics Engineering Described (A nano-plasmonic chip for simultaneous sensing with...

August 20, 2014



New Lasers and Photonics Study Results from School of Electronics Engineering Described (A nano-plasmonic chip for simultaneous sensing with dual-resonance surface-enhanced Raman scattering and localized surface plasmon resonance)

By a News Reporter-Staff News Editor at Electronics Newsweekly -- Fresh data on Lasers and Photonics are presented in a new report. According to news reporting originating from Stockholm, Sweden, by VerticalNews correspondents, research stated, "A dual-resonance surface-enhanced Raman scattering (SERS) chip which also serves as a localized surface plasmon resonance (LSPR) refractive index sensor is proposed. The dual-resonance SERS chip can simultaneously enhance excitation and Stokes lines for Raman signals detection in a broad wavelength region with virtually no limitation."

Our news editors obtained a quote from the research from the School of Electronics Engineering, "Thus, it is especially useful for Raman detection at long wave numbers and hyper Raman. The great performance of this chip relies on the highly independent tunability of the two localized plasmonic resonances from the optical to the nearinfrared region and the strict 'hot spot' match in space for both resonant wavelengths. Furthermore, Raman signals of polymethyl-methacrylate (PMMA) from 500 cm(-1) to 3300 cm(-1) are measured in the experiments and an obvious superiority can be seen compared to a single-resonance SERS chip. In an addition, by using the subradiant magnetic dipole resonance, the LSPR refractive sensor gives a high sensitivity of 577 nm/RIU and high figure of merit (FoM) of 14.2. The experimental results are consistent with the simulated results."

According to the news editors, the research concluded: "This dual-functional sensing chip opens a route for dual-modality detection of the concentration of some specific molecules."

For more information on this research see: A nano-plasmonic chip for simultaneous sensing with dual-resonance surface-enhanced Raman scattering and localized surface plasmon resonance. Laser & Photonics Reviews, 2014;8(4):610-616. Laser & Photonics Reviews can be contacted at: Wiley-V C H Verlag Gmbh, Boschstrasse 12, D-69469 Weinheim, Germany. (Wiley-Blackwell - www.wiley.com/; Laser & Photonics Reviews - onlinelibrary.wiley.com/journal/10.1002/(ISSN)1863-8899)

The news editors report that additional information may be obtained by contacting J. Lin, Royal Inst Technol, Sch Elect Engn, Dept. of Electromagnet Engn, S-10044 Stockholm, Sweden. Additional authors for this research include Y. Zhang, J. Qian and S.L. He.

Keywords for this news article include: Sweden, Europe, Stockholm, Lasers and Photonics

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Electronics Newsweekly


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