Measurement of two-photon absorption cross-section in organic molecular salt with linear and circular polarized radiation

A. K. Dharmadhikari; A. S. Sandhu; J. A. Dharmadhikari; A. Mishra; G. R. Kumar

doi:10.1007/s00340-004-1527-1

Measurement of two-photon absorption cross-section in organic molecular salt with linear and circular polarized radiation

A. K. Dharmadhikari
, A. S. Sandhu
, J. A. Dharmadhikari
, A. Mishra
, G. R. Kumar

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

5 Scopus citations

Abstract

We report on the investigation of two-photon absorption (TPA) in 4′-Diethylamino-N-Methyl-4-Stilbazolium Tosylate (DEST) with 40 picosecond, 1064 nm linear and circular polarization laser radiation. The TPA cross-section σ₂ measured is larger for linear polarized radiation (948 GM) than that for the circular polarized radiation (840 GM). The large TPA cross-section of DEST facilitates highly directional and efficient TPA induced upconverted emission in the range of 590-640 nm even though the fluorescence efficiency of DEST is very low (∼ 0.5%). The net single pass efficiency of upcon-version is ∼ 7%.

Original language	English (US)
Pages (from-to)	235-238
Number of pages	4
Journal	Applied Physics B: Lasers and Optics
Volume	79
Issue number	2
DOIs	https://doi.org/10.1007/s00340-004-1527-1
State	Published - Jul 2004
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)
General Physics and Astronomy

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title = "Measurement of two-photon absorption cross-section in organic molecular salt with linear and circular polarized radiation",

abstract = "We report on the investigation of two-photon absorption (TPA) in 4′-Diethylamino-N-Methyl-4-Stilbazolium Tosylate (DEST) with 40 picosecond, 1064 nm linear and circular polarization laser radiation. The TPA cross-section σ2 measured is larger for linear polarized radiation (948 GM) than that for the circular polarized radiation (840 GM). The large TPA cross-section of DEST facilitates highly directional and efficient TPA induced upconverted emission in the range of 590-640 nm even though the fluorescence efficiency of DEST is very low (∼ 0.5\%). The net single pass efficiency of upcon-version is ∼ 7\%.",

author = "Dharmadhikari, \{A. K.\} and Sandhu, \{A. S.\} and Dharmadhikari, \{J. A.\} and A. Mishra and Kumar, \{G. R.\}",

year = "2004",

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doi = "10.1007/s00340-004-1527-1",

language = "English (US)",

volume = "79",

pages = "235--238",

journal = "Applied Physics B: Lasers and Optics",

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TY - JOUR

T1 - Measurement of two-photon absorption cross-section in organic molecular salt with linear and circular polarized radiation

AU - Dharmadhikari, A. K.

AU - Sandhu, A. S.

AU - Dharmadhikari, J. A.

AU - Mishra, A.

AU - Kumar, G. R.

PY - 2004/7

Y1 - 2004/7

N2 - We report on the investigation of two-photon absorption (TPA) in 4′-Diethylamino-N-Methyl-4-Stilbazolium Tosylate (DEST) with 40 picosecond, 1064 nm linear and circular polarization laser radiation. The TPA cross-section σ2 measured is larger for linear polarized radiation (948 GM) than that for the circular polarized radiation (840 GM). The large TPA cross-section of DEST facilitates highly directional and efficient TPA induced upconverted emission in the range of 590-640 nm even though the fluorescence efficiency of DEST is very low (∼ 0.5%). The net single pass efficiency of upcon-version is ∼ 7%.

AB - We report on the investigation of two-photon absorption (TPA) in 4′-Diethylamino-N-Methyl-4-Stilbazolium Tosylate (DEST) with 40 picosecond, 1064 nm linear and circular polarization laser radiation. The TPA cross-section σ2 measured is larger for linear polarized radiation (948 GM) than that for the circular polarized radiation (840 GM). The large TPA cross-section of DEST facilitates highly directional and efficient TPA induced upconverted emission in the range of 590-640 nm even though the fluorescence efficiency of DEST is very low (∼ 0.5%). The net single pass efficiency of upcon-version is ∼ 7%.

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DO - 10.1007/s00340-004-1527-1

M3 - Article

AN - SCOPUS:3142716660

SN - 0946-2171

VL - 79

SP - 235

EP - 238

JO - Applied Physics B: Lasers and Optics

JF - Applied Physics B: Lasers and Optics

IS - 2

ER -

Measurement of two-photon absorption cross-section in organic molecular salt with linear and circular polarized radiation

Abstract

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