Precision-controlled ultrafast electron microscope platforms. A case study: Multiple-order coherent phonon dynamics in 1T-TaSe

Xiaoyi Sun, Joseph Williams, Sachin Sharma, Shriraj Kunjir, Dan Morris, Shen Zhao, Chong-Yu Ruan

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Article in Structural dynamics (Melville, N.Y.), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

7 authors.

Xiaoyi SunDepartment of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA.ORCID https://orcid.org/0000-0002-4819-5738

Joseph WilliamsDepartment of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA.

Sachin SharmaDepartment of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA.ORCID https://orcid.org/0009-0001-6415-379X

Shriraj KunjirFacility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA.ORCID https://orcid.org/0009-0007-4035-6764

Dan MorrisFacility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA.

Shen ZhaoFacility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA.ORCID https://orcid.org/0000-0002-1869-5555

Chong-Yu RuanDepartment of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA.ORCID https://orcid.org/0000-0002-0166-4015

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We report on the first detailed beam tests attesting the fundamental principle behind the development of high-current-efficiency ultrafast electron microscope systems where a radio frequency (RF) cavity is incorporated as a condenser lens in the beam delivery system. To allow for the experiment to be carried out with a sufficient resolution to probe the performance at the emittance floor, a new cascade loop RF controller system is developed to reduce the RF noise floor. Temporal resolution at 50 fs in full-width-at-half-maximum and detection sensitivity better than 1% are demonstrated on exfoliated 1T-TaSe

Identifiers

PMID38566810

DOI10.1063/4.0000242

PMCPMC10987196

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.