Ultrafast near-field microscopy of single gold nanoparticles

Kohei Imura, H. Okamoto

研究成果: Conference contribution

抄録

We investigated near-field optical properties and images of single gold nanorods by using a near-field optical microscope. Observed transmission spectra show distinct transverse and longitudinal surface plasmon resonances. Transmission images observed near the surface plasmon resonances agree qualitatively with calculated maps of optical local density-of-states, and are assignable to plasmon wavefunctions. Ultrafast temporal responses in the single gold nanoparticles were observed by combining a near-field microscope with time-resolved techniques. Observed transient transmission images of the single nanorods show characteristic optical features, and are in good agreement with a calculated map of variation of local density of states arising from the elevation of electronic temperature in the nanorod induced by photoexcitation.

元の言語English
ホスト出版物のタイトルProceedings of SPIE - The International Society for Optical Engineering
6471
DOI
出版物ステータスPublished - 2007
外部発表Yes
イベントUltrafast Phenomena in Semiconductors and Nanostructure Materials XI and Semiconductor Photodetectors IV - San Jose, CA
継続期間: 2007 1 222007 1 24

Other

OtherUltrafast Phenomena in Semiconductors and Nanostructure Materials XI and Semiconductor Photodetectors IV
San Jose, CA
期間07/1/2207/1/24

Fingerprint

Nanorods
nanorods
Image communication systems
near fields
Microscopic examination
Gold
Surface plasmon resonance
gold
Nanoparticles
microscopy
surface plasmon resonance
nanoparticles
Microscopes
Photoexcitation
Wave functions
optical microscopes
photoexcitation
Optical properties
microscopes
optical properties

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

これを引用

Imura, K., & Okamoto, H. (2007). Ultrafast near-field microscopy of single gold nanoparticles. : Proceedings of SPIE - The International Society for Optical Engineering (巻 6471). [647103] https://doi.org/10.1117/12.696994

Ultrafast near-field microscopy of single gold nanoparticles. / Imura, Kohei; Okamoto, H.

Proceedings of SPIE - The International Society for Optical Engineering. 巻 6471 2007. 647103.

研究成果: Conference contribution

Imura, K & Okamoto, H 2007, Ultrafast near-field microscopy of single gold nanoparticles. : Proceedings of SPIE - The International Society for Optical Engineering. 巻. 6471, 647103, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XI and Semiconductor Photodetectors IV, San Jose, CA, 07/1/22. https://doi.org/10.1117/12.696994
Imura K, Okamoto H. Ultrafast near-field microscopy of single gold nanoparticles. : Proceedings of SPIE - The International Society for Optical Engineering. 巻 6471. 2007. 647103 https://doi.org/10.1117/12.696994
Imura, Kohei ; Okamoto, H. / Ultrafast near-field microscopy of single gold nanoparticles. Proceedings of SPIE - The International Society for Optical Engineering. 巻 6471 2007.
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