Silver Nanoprisms Acting as Multipolar Nanoantennas under a Low-Intensity Infrared Optical Field Exciting Fluorescence from Eu3
IR@NPL: CSIR-National Physical Laboratory, New Delhi
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| Title |
Silver Nanoprisms Acting as Multipolar Nanoantennas under a Low-Intensity Infrared Optical Field Exciting Fluorescence from Eu3
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| Creator |
Buch, Zubair
Kumar, Vineet Mamgain, Hitesh Chawla, Santa |
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| Subject |
Materials Science
Atomic and Molecular Physics Nanoscience/ Nanotechnology Physical Chemistry/Chemical Physics |
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| Description |
A silver nanoprism (Ag NP) generates a near field due to multipolar surface plasmon resonance (SPR) and lightening rod effects and acts as a multipolar nanoantenna. The ability of Ag NPs to create such an effect even under an infrared (IR) optical field far off of resonance from the SPR frequency is demonstrated through finite difference time domain simulations of exact Ag NPs and hybrids. The conclusive experimental proof of such a near field around Ag NPs under low-intensity (1.5 mW) IR (980 nm) light came when it could excite fluorescence from YVO4/Eu3+ nanoparticles that otherwise do not fluoresce under IR. The results open up new vistas for exclusive plasmonic excitation of fluorescence through metal NP hybrids/ensembles.
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| Publisher |
American Chemical Society
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| Date |
2013-11-21
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://npl.csircentral.net/3061/1/Silver%20Nanoprisms%20Acting.pdf
Buch, Zubair and Kumar, Vineet and Mamgain, Hitesh and Chawla, Santa (2013) Silver Nanoprisms Acting as Multipolar Nanoantennas under a Low-Intensity Infrared Optical Field Exciting Fluorescence from Eu3. Journal of Physical Chemistry Letters, 4 (22). pp. 3834-3838. ISSN 1948-7185 |
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| Relation |
http://npl.csircentral.net/3061/
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