Near-field microscopy and spectroscopy of third-harmonic generation and two-photon excitation in nonlinear organic crystals

Yuzhen Shen; Jacek Swiatkiewicz; Przemyslaw Markowicz; Paras N. Prasad

doi:10.1063/1.1412433

Near-field microscopy and spectroscopy of third-harmonic generation and two-photon excitation in nonlinear organic crystals

Yuzhen Shen
, Jacek Swiatkiewicz
, Przemyslaw Markowicz
, Paras N. Prasad

Chemistry

SUNY Buffalo

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

7 Scopus citations

Abstract

Near-field microscopy and spectroscopy of third-harmonic generation and two-photon excitation are demonstrated on a subdiffraction-limited scale. Near-field measurements of both the intensity dependence and the spectral dependence are performed on nonlinear organic nanocrystals of 4-(N, N-diethylamino)-β-nitrostyrene. The in-plane local anisotropies of third-order susceptibilities are observed, which is revealed to be associated to two-photon allowed π-electron transition. The local spectra exhibit the crystal symmetry on a nanometric scale.

Original language	English
Pages (from-to)	2681-2683
Number of pages	3
Journal	Applied Physics Letters
Volume	79
Issue number	17
DOIs	https://doi.org/10.1063/1.1412433
State	Published - Oct 22 2001

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abstract = "Near-field microscopy and spectroscopy of third-harmonic generation and two-photon excitation are demonstrated on a subdiffraction-limited scale. Near-field measurements of both the intensity dependence and the spectral dependence are performed on nonlinear organic nanocrystals of 4-(N, N-diethylamino)-β-nitrostyrene. The in-plane local anisotropies of third-order susceptibilities are observed, which is revealed to be associated to two-photon allowed π-electron transition. The local spectra exhibit the crystal symmetry on a nanometric scale.",

author = "Yuzhen Shen and Jacek Swiatkiewicz and Przemyslaw Markowicz and Prasad, \{Paras N.\}",

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AU - Shen, Yuzhen

AU - Swiatkiewicz, Jacek

AU - Markowicz, Przemyslaw

AU - Prasad, Paras N.

PY - 2001/10/22

Y1 - 2001/10/22

N2 - Near-field microscopy and spectroscopy of third-harmonic generation and two-photon excitation are demonstrated on a subdiffraction-limited scale. Near-field measurements of both the intensity dependence and the spectral dependence are performed on nonlinear organic nanocrystals of 4-(N, N-diethylamino)-β-nitrostyrene. The in-plane local anisotropies of third-order susceptibilities are observed, which is revealed to be associated to two-photon allowed π-electron transition. The local spectra exhibit the crystal symmetry on a nanometric scale.

AB - Near-field microscopy and spectroscopy of third-harmonic generation and two-photon excitation are demonstrated on a subdiffraction-limited scale. Near-field measurements of both the intensity dependence and the spectral dependence are performed on nonlinear organic nanocrystals of 4-(N, N-diethylamino)-β-nitrostyrene. The in-plane local anisotropies of third-order susceptibilities are observed, which is revealed to be associated to two-photon allowed π-electron transition. The local spectra exhibit the crystal symmetry on a nanometric scale.

UR - https://www.scopus.com/pages/publications/0035934766

U2 - 10.1063/1.1412433

DO - 10.1063/1.1412433

M3 - Article

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SP - 2681

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JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 17

ER -

Near-field microscopy and spectroscopy of third-harmonic generation and two-photon excitation in nonlinear organic crystals

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