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Julia Scherschligt (Fed)

Group Leader of the Thermodynamic Metrology Group

Julia Scherschligt is an expert in vacuum and pressure metrology with decades of experience in instrument science. She has an active research program in realizing the pascal at ultra and extreme high vacuum using techniques from atomic physics. She is the NIST representative to the Working Group for Pressure and Vacuum in the Consultative Committee for Mass and Related Quantities (CCM-WGPV) and is active on several other international committees.

Julia joined NIST in 2007, working for several years in the Condensed Matter Science group at the NIST Center for Neutron Research before joining the Physical Measurement Laboratory as the leader of the Thermodynamic Metrology group. Her educational background includes topics from thermometry and vacuum.

Publications

Precise Quantum Measurement of Vacuum with Cold Atoms

Author(s)
Daniel Barker, Bishnu Acharya, James A. Fedchak, Nikolai Klimov, Eric Norrgard, Julia Scherschligt, Eite Tiesinga, Stephen Eckel
We describe the cold-atom vacuum standards (CAVS) under development at the National Institute of Standards and Technology. The CAVS measures pressure in the

A constant pressure flowmeter for the extremely high vacuum

Author(s)
Stephen Eckel, Daniel Barker, James A. Fedchak, Emmanuel Newsome, Julia Scherschligt, Robert E. Vest
We demonstrate operation of a constant-pressure flowmeter capable of generating and accurately measuring flows as low as $1\times10^-13}$mol/s. Generation of

Comparison of two multiplexed portable cold atom vacuum standards

Author(s)
Lucas Ehinger, Bishnu Acharya, Daniel Barker, James A. Fedchak, Julia Scherschligt, Eite Tiesinga, Stephen Eckel
We compare the vacuum measured by two portable cold atom vacuum standards (pCAVS) based on ultracold $^7$Li atoms. Our pCAVS devices share the same laser system

Lambda-enhanced gray molasses in a tetrahedral laser beam geometry

Author(s)
Daniel Barker, Eric Norrgard, Nikolai Klimov, James A. Fedchak, Julia Scherschligt, Stephen Eckel
We report observation of sub-Doppler cooling of lithium using an irregular-tetrahedral laser beam arrangement, which is produced by a nanofabricated diffraction

Patents

Created October 9, 2019, Updated January 19, 2023