Near-field optical imaging of transient absorption dynamics in organic nanocrystals

Yuzhen Shen; Tzu Chau Lin; Jianming Dai; Przemyslaw Markowicz; Paras N. Prasad

doi:10.1021/jp030376+

Near-field optical imaging of transient absorption dynamics in organic nanocrystals

Yuzhen Shen, Tzu Chau Lin, Jianming Dai, Przemyslaw Markowicz, Paras N. Prasad

Department of Chemistry

Research output: Contribution to journal › Letter › peer-review

13 Scopus citations

Abstract

Collection-mode near-field scanning optical microscopy is combined with femtosecond two-color pump-probe spectroscopy to study the transient absorption dynamics in organic crystals. The temporal evolution of the variation in the nonlinear transmittance of nanostructures is mapped with a spatial resolution of 200 nm and temporal resolution of 150 fs. Near-field time-resolved measurements indicate a nonradiative energy transfer from the excited molecules to the metal coating of a near-field probe.

Original language	English
Pages (from-to)	13551-13553
Number of pages	3
Journal	Journal of Physical Chemistry B
Volume	107
Issue number	49
DOIs	https://doi.org/10.1021/jp030376+
State	Published - 11 Dec 2003

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abstract = "Collection-mode near-field scanning optical microscopy is combined with femtosecond two-color pump-probe spectroscopy to study the transient absorption dynamics in organic crystals. The temporal evolution of the variation in the nonlinear transmittance of nanostructures is mapped with a spatial resolution of 200 nm and temporal resolution of 150 fs. Near-field time-resolved measurements indicate a nonradiative energy transfer from the excited molecules to the metal coating of a near-field probe.",

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AU - Shen, Yuzhen

AU - Lin, Tzu Chau

AU - Dai, Jianming

AU - Markowicz, Przemyslaw

AU - Prasad, Paras N.

PY - 2003/12/11

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N2 - Collection-mode near-field scanning optical microscopy is combined with femtosecond two-color pump-probe spectroscopy to study the transient absorption dynamics in organic crystals. The temporal evolution of the variation in the nonlinear transmittance of nanostructures is mapped with a spatial resolution of 200 nm and temporal resolution of 150 fs. Near-field time-resolved measurements indicate a nonradiative energy transfer from the excited molecules to the metal coating of a near-field probe.

AB - Collection-mode near-field scanning optical microscopy is combined with femtosecond two-color pump-probe spectroscopy to study the transient absorption dynamics in organic crystals. The temporal evolution of the variation in the nonlinear transmittance of nanostructures is mapped with a spatial resolution of 200 nm and temporal resolution of 150 fs. Near-field time-resolved measurements indicate a nonradiative energy transfer from the excited molecules to the metal coating of a near-field probe.

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Near-field optical imaging of transient absorption dynamics in organic nanocrystals

Abstract

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