Solving the jitter problem in microwave compressed ultrafast electron diffraction instruments: Robust sub-50 fs cavity-laser phase stabilization

Solving the jitter problem in microwave compressed ultrafast electron diffraction instruments: Robust sub-50 fs cavity-laser phase stabilization

We demonstrate the compression of electron pulses in a high-brightness ultrafast electron diffraction instrument using phase-locked microwave signals directly generated from a mode-locked femtosecond oscillator. Additionally, a continuous-wave phase stabilization system that accurately corrects for...

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Main Authors: M. R. Otto, L. P. René de Cotret, M. J. Stern, B. J. Siwick
Format: Article
Language:English
Published: AIP Publishing LLC and ACA 2017-09-01
Series:Structural Dynamics
Online Access:http://dx.doi.org/10.1063/1.4989960
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spelling doaj-f33576a1965d4b0fbaa6cbdd62c7d2b52020-11-24T22:21:22ZengAIP Publishing LLC and ACAStructural Dynamics2329-77782017-09-0145051101051101-710.1063/1.4989960010705SDYSolving the jitter problem in microwave compressed ultrafast electron diffraction instruments: Robust sub-50 fs cavity-laser phase stabilizationM. R. Otto0L. P. René de Cotret1M. J. Stern2B. J. Siwick3 Department of Physics, Center for the Physics of Materials, McGill University, 3600 University Street, Montreal, Quebec H3A 2T8, Canada Department of Physics, Center for the Physics of Materials, McGill University, 3600 University Street, Montreal, Quebec H3A 2T8, Canada Department of Physics, Center for the Physics of Materials, McGill University, 3600 University Street, Montreal, Quebec H3A 2T8, Canada Department of Physics, Center for the Physics of Materials, McGill University, 3600 University Street, Montreal, Quebec H3A 2T8, CanadaWe demonstrate the compression of electron pulses in a high-brightness ultrafast electron diffraction instrument using phase-locked microwave signals directly generated from a mode-locked femtosecond oscillator. Additionally, a continuous-wave phase stabilization system that accurately corrects for phase fluctuations arising in the compression cavity from both power amplification and thermal drift induced detuning was designed and implemented. An improvement in the microwave timing stability from 100 fs to 5 fs RMS is measured electronically, and the long-term arrival time stability ( >10 h) of the electron pulses improves to below our measurement resolution of 50 fs. These results demonstrate sub-relativistic ultrafast electron diffraction with compressed pulses that is no longer limited by laser-microwave synchronization.http://dx.doi.org/10.1063/1.4989960
collection DOAJ
language English
format Article
sources DOAJ
author M. R. Otto
L. P. René de Cotret
M. J. Stern
B. J. Siwick
spellingShingle M. R. Otto
L. P. René de Cotret
M. J. Stern
B. J. Siwick
Solving the jitter problem in microwave compressed ultrafast electron diffraction instruments: Robust sub-50 fs cavity-laser phase stabilization
Structural Dynamics
author_facet M. R. Otto
L. P. René de Cotret
M. J. Stern
B. J. Siwick
author_sort M. R. Otto
title Solving the jitter problem in microwave compressed ultrafast electron diffraction instruments: Robust sub-50 fs cavity-laser phase stabilization
title_short Solving the jitter problem in microwave compressed ultrafast electron diffraction instruments: Robust sub-50 fs cavity-laser phase stabilization
title_full Solving the jitter problem in microwave compressed ultrafast electron diffraction instruments: Robust sub-50 fs cavity-laser phase stabilization
title_fullStr Solving the jitter problem in microwave compressed ultrafast electron diffraction instruments: Robust sub-50 fs cavity-laser phase stabilization
title_full_unstemmed Solving the jitter problem in microwave compressed ultrafast electron diffraction instruments: Robust sub-50 fs cavity-laser phase stabilization
title_sort solving the jitter problem in microwave compressed ultrafast electron diffraction instruments: robust sub-50 fs cavity-laser phase stabilization
publisher AIP Publishing LLC and ACA
series Structural Dynamics
issn 2329-7778
publishDate 2017-09-01
description We demonstrate the compression of electron pulses in a high-brightness ultrafast electron diffraction instrument using phase-locked microwave signals directly generated from a mode-locked femtosecond oscillator. Additionally, a continuous-wave phase stabilization system that accurately corrects for phase fluctuations arising in the compression cavity from both power amplification and thermal drift induced detuning was designed and implemented. An improvement in the microwave timing stability from 100 fs to 5 fs RMS is measured electronically, and the long-term arrival time stability ( >10 h) of the electron pulses improves to below our measurement resolution of 50 fs. These results demonstrate sub-relativistic ultrafast electron diffraction with compressed pulses that is no longer limited by laser-microwave synchronization.
url http://dx.doi.org/10.1063/1.4989960
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AT lprenedecotret solvingthejitterprobleminmicrowavecompressedultrafastelectrondiffractioninstrumentsrobustsub50fscavitylaserphasestabilization
AT mjstern solvingthejitterprobleminmicrowavecompressedultrafastelectrondiffractioninstrumentsrobustsub50fscavitylaserphasestabilization
AT bjsiwick solvingthejitterprobleminmicrowavecompressedultrafastelectrondiffractioninstrumentsrobustsub50fscavitylaserphasestabilization
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