Ultrafast Chemical Dynamics in Time Domain Through Fluorescence Spectroscopy

Bagchi, Biman (2015) Ultrafast Chemical Dynamics in Time Domain Through Fluorescence Spectroscopy. In: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES INDIA SECTION A-PHYSICAL SCIENCES, 85 (4, SI). pp. 483-488.

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Abstract

While absorption and emission spectroscopy have always been used to detect and characterize molecules and molecular complexes, the availability of ultrashort laser pulses and associated computer-aided optical detection techniques allowed study of chemical processes directly in the time domain at unprecedented time scales, through appearance and disappearance of fluorescence from participating chemical species. Application of such techniques to chemical dynamics in liquids, where many processes occur with picosecond and femtosecond time scales lead to the discovery of a host of new phenomena that in turn led to the development of many new theories. Experiment and theory together provided new and valuable insight into many fundamental chemical processes, like isomerization dynamics, electron and proton transfer reactions, vibrational energy and phase relaxation, photosynthesis, to name just a few. In this article, we shall review a few of such discoveries in attempt to provide a glimpse of the fascinating research employing fluorescence spectroscopy that changed the field of chemical dynamics forever.

Item Type:	Journal Article
Publication:	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES INDIA SECTION A-PHYSICAL SCIENCES
Publisher:	NATL ACAD SCIENCES INDIA
Additional Information:	Copy right for this article belongs to the NATL ACAD SCIENCES INDIA, 5 LAJPATRAI RD, ALLAHABAD 211002, INDIA
Keywords:	Ultrafast chemistry; Reaction dynamics; Chemical and biological reactions; FRET; Biological water; Solvation dynamics; Longitudinal relaxation time
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	02 Jan 2016 07:36
Last Modified:	02 Jan 2016 07:36
URI:	http://eprints.iisc.ac.in/id/eprint/52999

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