Angle-resolved coherent wave mixing using a 4 fs ultra-broad bandwidth laser

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Title: Angle-resolved coherent wave mixing using a 4 fs ultra-broad bandwidth laser
Authors: Mercer, IP
Witting, T
Driver, T
Cogdell, RJ
Marangos, JP
Tisch, JWG
Item Type: Journal Article
Abstract: We demonstrate angle-resolved coherent (ARC) wave mixing using 4 fs light pulses derived from a laser source that spans 550–1000 nm. We believe this to be the shortest pulse duration used to date in coherent multi-dimensional spectroscopy. The marriage of this ultra-broad band, few-cycle coherent source with the ARC technique will permit new investigations of the interplay between energy transfers and quantum superposition states spanning 8200  cm−1. We applied this configuration to measurements on the photosynthetic low light (LL) complex from Rhodopseudomonas palustris in solution at ambient temperature. We observe bi-exponential population dynamics for energy transfer across 5500  cm−1 (0.65 eV), which we attribute to energy transfer from the transition of bacteriochlorophylls to the B850 pigment of the complex. We believe for the first time, to the best of our knowledge, we demonstrate that ARC maps can be recorded using a single laser pulse.
Issue Date: 14-Feb-2017
Date of Acceptance: 19-Jan-2017
URI: http://hdl.handle.net/10044/1/67544
DOI: https://dx.doi.org/10.1364/OL.42.000859
ISSN: 0146-9592
Publisher: Optical Society of America
Start Page: 859
End Page: 862
Journal / Book Title: Optics Letters
Volume: 42
Issue: 4
Copyright Statement: © 2017 Optical Society of America.
Sponsor/Funder: Engineering & Physical Science Research Council (EPSRC)
Funder's Grant Number: EP/I032517/1
Keywords: Science & Technology
Physical Sciences
Optics
ELECTRONIC SPECTROSCOPY
RHODOPSEUDOMONAS-PALUSTRIS
LOW-LIGHT
PULSES
COMPLEXES
FIBER
Science & Technology
Physical Sciences
Optics
ELECTRONIC SPECTROSCOPY
RHODOPSEUDOMONAS-PALUSTRIS
LOW-LIGHT
PULSES
COMPLEXES
FIBER
0205 Optical Physics
0206 Quantum Physics
0906 Electrical And Electronic Engineering
Optics
Publication Status: Published
Online Publication Date: 2017-01-25
Appears in Collections:Quantum Optics and Laser Science
Physics
Faculty of Natural Sciences



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