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Title: A terahertz pump mega-electron-volt ultrafast electron diffraction probe apparatus at the SLAC Accelerator Structure Test Area facility

Abstract

Here, we describe a new experimental setup capable of measuring structural dynamics following intense terahertz excitation. This system, developed at the SLAC Accelerator Structure Test Area facility, uses a high-energy ultrafast laser to produce intense terahertz pulses and femtosecond electron bunches that are accelerated to mega-electron-volt kinetic energies. The focused terahertz pulses have electric fields in excess of 600 kV/cm, and the resulting structural dynamics can be followed by electron diffraction. We also present some examples demonstrating its implementation where interactions between the THz pulses and the electron bunch are used to characterize the spatial and temporal characteristics of the THz field.

Authors:
 [1];  [2];  [2];  [2];  [2];  [2];  [3];  [4];  [2];  [2];  [2];  [2];  [2];  [4];  [5];  [2];  [2]
+ Show Author Affiliations
  1. SLAC National Accelerator Lab., Menlo Park, CA (United States); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Chemistry
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  3. SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Institute for Materials and Energy Science (SIMES); Stanford Univ., CA (United States). Dept. of Materials Science and Engineering
  4. SLAC National Accelerator Lab., Menlo Park, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Institute for Materials and Energy Science (SIMES)
  5. SLAC National Accelerator Lab., Menlo Park, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Institute for Materials and Energy Science (SIMES); SLAC National Accelerator Lab., Menlo Park, CA (United States). Photon Ultrafast Laser Science and Engineering Inst. (PULSE)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Fusion Energy Sciences (FES)
OSTI Identifier:
1461477
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Instrumentation
Additional Journal Information:
Journal Volume: 13; Journal Issue: 06; Journal ID: ISSN 1748-0221
Publisher:
Institute of Physics (IOP)
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 43 PARTICLE ACCELERATORS; Accelerator applications; Optics; Imaging spectroscopy

Citation Formats

Ofori-Okai, B. K., Hoffmann, M. C., Reid, A. H., Edstrom, S., Jobe, R. K., Li, R. K., Mannebach, E. M., Park, S. J., Polzin, W., Shen, X., Weathersby, S. P., Yang, J., Zheng, Q., Zajac, M., Lindenberg, A. M., Glenzer, S. H., and Wang, X. J. A terahertz pump mega-electron-volt ultrafast electron diffraction probe apparatus at the SLAC Accelerator Structure Test Area facility. United States: N. p., 2018. Web. doi:10.1088/1748-0221/13/06/p06014.
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Ofori-Okai, B. K., Hoffmann, M. C., Reid, A. H., Edstrom, S., Jobe, R. K., Li, R. K., Mannebach, E. M., Park, S. J., Polzin, W., Shen, X., Weathersby, S. P., Yang, J., Zheng, Q., Zajac, M., Lindenberg, A. M., Glenzer, S. H., & Wang, X. J. A terahertz pump mega-electron-volt ultrafast electron diffraction probe apparatus at the SLAC Accelerator Structure Test Area facility. United States. https://doi.org/10.1088/1748-0221/13/06/p06014
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Ofori-Okai, B. K., Hoffmann, M. C., Reid, A. H., Edstrom, S., Jobe, R. K., Li, R. K., Mannebach, E. M., Park, S. J., Polzin, W., Shen, X., Weathersby, S. P., Yang, J., Zheng, Q., Zajac, M., Lindenberg, A. M., Glenzer, S. H., and Wang, X. J. Fri . "A terahertz pump mega-electron-volt ultrafast electron diffraction probe apparatus at the SLAC Accelerator Structure Test Area facility". United States. https://doi.org/10.1088/1748-0221/13/06/p06014. https://www.osti.gov/servlets/purl/1461477.
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@article{osti_1461477,
title = {A terahertz pump mega-electron-volt ultrafast electron diffraction probe apparatus at the SLAC Accelerator Structure Test Area facility},
author = {Ofori-Okai, B. K. and Hoffmann, M. C. and Reid, A. H. and Edstrom, S. and Jobe, R. K. and Li, R. K. and Mannebach, E. M. and Park, S. J. and Polzin, W. and Shen, X. and Weathersby, S. P. and Yang, J. and Zheng, Q. and Zajac, M. and Lindenberg, A. M. and Glenzer, S. H. and Wang, X. J.},
abstractNote = {Here, we describe a new experimental setup capable of measuring structural dynamics following intense terahertz excitation. This system, developed at the SLAC Accelerator Structure Test Area facility, uses a high-energy ultrafast laser to produce intense terahertz pulses and femtosecond electron bunches that are accelerated to mega-electron-volt kinetic energies. The focused terahertz pulses have electric fields in excess of 600 kV/cm, and the resulting structural dynamics can be followed by electron diffraction. We also present some examples demonstrating its implementation where interactions between the THz pulses and the electron bunch are used to characterize the spatial and temporal characteristics of the THz field.},
doi = {10.1088/1748-0221/13/06/p06014},
journal = {Journal of Instrumentation},
number = 06,
volume = 13,
place = {United States},
year = {Fri Jun 01 00:00:00 EDT 2018},
month = {Fri Jun 01 00:00:00 EDT 2018}
}
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Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1088/1748-0221/13/06/p06014
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Citation Metrics:
Cited by: 11 works
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Figures / Tables:

Figure 1 Figure 1: Schematic of optical setup highlighting the upgraded areas and new capabilities. The output of the new multi-pass amplifier is split and used to produce UV pulses by third harmonic generation as well as optical lines for THz generation by optical rectification and THz readout by electro-optic sampling. UVmore » pulses are used to create femtosecond electron bunches that are accelerated to MeV kinetic energies. THz pulses are generated in an MgO-doped LN crystal using NIR pulses with tilted pulse fronts, or in DSTMS using 1350 nm light produced by a high power OPA.« less
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