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Dear All,

 

SOLID STATE & STRUCTURAL CHEMISTRY UNIT

INDIAN INSTITUTE OF SCIENCE

BANGALORE – 560 012

SEMINAR

Speaker: Mr. Nilabja Maity

 

TWO-PHOTON ABSORPTION AND ITS APPLICATIONS

 

Date & Time: Thursday 22nd February, 2018 at 4.00 PM
Venue: SSCU AUDITORIUM

Abstract:

Two-Photon Absorption is a photophysical process by which a molecule simultaneously absorbs two photons to reach an excited state. It has important advantages over one-photon absorption i.e. NIR absorption,
excitation in confined focal region; which has led to its applications in confocal microscopy, photodynamic therapy, etc. In my talk, I will primarily focus on the theory of two-photon absorption, its
potential applications and structure-property correlation that can serve as a guideline for the development of efficient two-photon dyes.

 

References:

 

1.

Dichtel, W. R.et al.Singlet Oxygen Generation via Two-Photon Excited FRET.J. Am. Chem.Soc.126,5380–5381 (2004).

1.

Pawlicki, M., Collins, H. A., Denning, R. G. & Anderson, H. L. Two-Photon Absorption and the design of Two-Photon Dyes.Angew. Chemie Int. Ed.48,3244–3266 (2009).

2.

Zipfel, W. R., Williams, R. M. & Webb, W. W. Nonlinear magic: multiphoton microscopy in the biosciences.Nat. Biotechnol.21,1369–1377 (2003).

3.

Centonze, V. E. & White, J. G. Multiphoton Excitation Provides Optical Sections from Deeper within Scattering Specimens than Confocal Imaging.Biophys. J.75,2015–2024 (1998).

4.

Xu, C. & Webb, W. W. Measurement of two-photon excitation cross sections of molecular fluorophores with data from 690 to 1050 nm.J. Opt. Soc. Am. B13,481 (1996).

5.

Ahn, T. K.et al.Relationship between two-photon absorption and the π-conjugation pathway in porphyrin arrays through dihedral angle control.J. Am. Chem. Soc.128,1700–1704 (2006).

ALL ARE CORDIALLY INVITED TO ATTEND

Chairman
SSCU

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