NDLI: Ultrasensitive second harmonic generation nanoprobes via plasmonic coreshell structures

Content Provider	IEEE Xplore Digital Library
Author	Ye Pu Grange, R. Chia-Lung Hsieh Psaltis, D.
Copyright Year	2009
Description	Author affiliation: Optics Laboratory, EPFL, BM 4.107, Station 17, 1015 Lausanne, Switzerland (Ye Pu; Grange, R.; Chia-Lung Hsieh; Psaltis, D.)
Abstract	As a new mechanism of contrast for biomedical imaging, second harmonic generation (SHG) possesses unique advantages over fluorescence, such as non-bleaching, non-blinking, and narrow emission bandwidth. SHG has also shown great potential for three-dimensional microscopy [1, 2]. It was shown in theory that the nonlinear susceptibility of composite nanostructures can be greatly increased at resonance [3]. Recently silica-core Au nanoshells were demonstrated with engineered resonance [4]. Here we show, for the first time to our knowledge, that when we encapsulate a core material that is not centrosymmetric (BaTiO3) in a plasmonic shell (Au), the SHG response is strongly enhanced at resonance. In theory, the enhancement can reach 900 times based on a 100 nm diameter BaTiO3 core and a 10 nm Au shell. Experimentally, we measured a 741 times enhancement of the SH scattering efficiency. Such composite nanostructures potentially provide a class of ultrasensitive SHG biomarkers.
Starting Page	1
Ending Page	1
File Size	950664
Page Count	1
File Format	PDF
ISBN	9781424440795
DOI	10.1109/CLEOE-EQEC.2009.5191508
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-06-14
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Nanoparticles Gold Self-assembly Biomarkers Frequency conversion Plasmons Resonance Nanostructures Assembly Dispersion
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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