Stable and high-power few cycle supercontinuum for 2D ultrabroadband electronic spectroscopy

Optics Letters
Boris SpokoynyElad Harel

Abstract

Broadband supercontinuum (SC) pulses in the few cycle regime are a promising source for spectroscopic and imaging applications. However, SC sources are plagued by poor stability, greatly limiting their utility in phase-resolved nonlinear experiments such as 2D photon echo spectroscopy (2D PES). Here, we generated SC by two-stage filamentation in argon and air starting from 100 fs input pulses, which are sufficiently high-power and stable to record time-resolved 2D PE spectra in a single laser shot. We obtain a total power of 400 μJ/pulse in the visible spectral range of 500-850 nm and, after compression, yield pulses with duration of 6 fs according to transient-grating frequency-resolved optical gating (TG-FROG) measurements. We demonstrate the method on the laser dye, Cresyl Violet, and observe coherent oscillations indicative of nuclear wavepacket dynamics.

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Aug 19, 2015·The Journal of Physical Chemistry Letters·Boris Spokoyny, Elad Harel

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Citations

Nov 2, 2015·The Journal of Chemical Physics·Laurie A BizimanaDaniel B Turner
Mar 3, 2017·The Journal of Chemical Physics·Sebastian RoedingTobias Brixner
Feb 2, 2017·Optics Letters·Hélène SeilerPatanjali Kambhampati
Mar 1, 2017·Optics Express·Simon DraegerTobias Brixner
Sep 19, 2015·Angewandte Chemie·Patrick NuernbergerTobias Brixner
May 3, 2018·Optics Express·Zhan-Jie GaoJi Lin
Oct 19, 2017·Optics Express·Minjung SonGabriela S Schlau-Cohen
May 8, 2018·Chemical Science·John I OgrenGabriela S Schlau-Cohen
Jul 24, 2021·The Journal of Chemical Physics·Lars MewesMajed Chergui
Feb 13, 2018·The Journal of Physical Chemistry Letters·William O HutsonElad Harel
May 24, 2019·The Journal of Physical Chemistry. a·William P CarberyDaniel B Turner

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