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Title: Generation of highly mutually coherent hard-x-ray pulse pairs with an amplitude-splitting delay line

Abstract

Beam splitters and delay lines are among the key building blocks of modern-day optical laser technology. Progress in x-ray free electron laser source development and applications over the past decade is calling for their counterpart operating at the Angstrom wavelength regime. Recent efforts in x-ray optics development demonstrate relatively stable delay lines that most often adopt the division-of-wavefront approach for the beam splitting and recombination. However, the two exit beams in such configurations struggle to achieve sufficient mutual coherence to enable applications such as interferometry, correlation spectroscopy, and nonlinear spectroscopy. We present an experimental realization of the generation of highly mutually coherent pulse pairs using an amplitude-split delay line design based on transmission grating beam splitters and channel-cut crystals. The performance of the prototype system was analyzed in the context of x-ray coherent scattering and correlation spectroscopy, where nearly identical high-contrast speckle patterns from both branches were observed. Furthermore, we show in addition the high level of dynamical stability during continuous delay scans, a capability essential for high sensitivity ultrafast measurements.

Authors:
ORCiD logo; ; ; ; ; ; ; ORCiD logo; ; ORCiD logo; ; ; ORCiD logo;
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States). Linac Coherent Light Source (LCLS)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1826392
Alternate Identifier(s):
OSTI ID: 1825089
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Published Article
Journal Name:
Physical Review Research
Additional Journal Information:
Journal Name: Physical Review Research Journal Volume: 3 Journal Issue: 4; Journal ID: ISSN 2643-1564
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats

Li, Haoyuan, Sun, Yanwen, Vila-Comamala, Joan, Sato, Takahiro, Song, Sanghoon, Sun, Peihao, Seaberg, Matthew H., Wang, Nan, Hastings, J. B., Dunne, Mike, Fuoss, Paul, David, Christian, Sutton, Mark, and Zhu, Diling. Generation of highly mutually coherent hard-x-ray pulse pairs with an amplitude-splitting delay line. United States: N. p., 2021. Web. doi:10.1103/PhysRevResearch.3.043050.
Li, Haoyuan, Sun, Yanwen, Vila-Comamala, Joan, Sato, Takahiro, Song, Sanghoon, Sun, Peihao, Seaberg, Matthew H., Wang, Nan, Hastings, J. B., Dunne, Mike, Fuoss, Paul, David, Christian, Sutton, Mark, & Zhu, Diling. Generation of highly mutually coherent hard-x-ray pulse pairs with an amplitude-splitting delay line. United States. https://doi.org/10.1103/PhysRevResearch.3.043050
Li, Haoyuan, Sun, Yanwen, Vila-Comamala, Joan, Sato, Takahiro, Song, Sanghoon, Sun, Peihao, Seaberg, Matthew H., Wang, Nan, Hastings, J. B., Dunne, Mike, Fuoss, Paul, David, Christian, Sutton, Mark, and Zhu, Diling. Mon . "Generation of highly mutually coherent hard-x-ray pulse pairs with an amplitude-splitting delay line". United States. https://doi.org/10.1103/PhysRevResearch.3.043050.
@article{osti_1826392,
title = {Generation of highly mutually coherent hard-x-ray pulse pairs with an amplitude-splitting delay line},
author = {Li, Haoyuan and Sun, Yanwen and Vila-Comamala, Joan and Sato, Takahiro and Song, Sanghoon and Sun, Peihao and Seaberg, Matthew H. and Wang, Nan and Hastings, J. B. and Dunne, Mike and Fuoss, Paul and David, Christian and Sutton, Mark and Zhu, Diling},
abstractNote = {Beam splitters and delay lines are among the key building blocks of modern-day optical laser technology. Progress in x-ray free electron laser source development and applications over the past decade is calling for their counterpart operating at the Angstrom wavelength regime. Recent efforts in x-ray optics development demonstrate relatively stable delay lines that most often adopt the division-of-wavefront approach for the beam splitting and recombination. However, the two exit beams in such configurations struggle to achieve sufficient mutual coherence to enable applications such as interferometry, correlation spectroscopy, and nonlinear spectroscopy. We present an experimental realization of the generation of highly mutually coherent pulse pairs using an amplitude-split delay line design based on transmission grating beam splitters and channel-cut crystals. The performance of the prototype system was analyzed in the context of x-ray coherent scattering and correlation spectroscopy, where nearly identical high-contrast speckle patterns from both branches were observed. Furthermore, we show in addition the high level of dynamical stability during continuous delay scans, a capability essential for high sensitivity ultrafast measurements.},
doi = {10.1103/PhysRevResearch.3.043050},
journal = {Physical Review Research},
number = 4,
volume = 3,
place = {United States},
year = {Mon Oct 18 00:00:00 EDT 2021},
month = {Mon Oct 18 00:00:00 EDT 2021}
}

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