La Mantia, D.
, Lei, M.
, Prajapati, N.
, Schlossberger, N.
, SIMONS, M.
, Holloway, C.
, Scherschligt, J.
, Eckel, S.
and Norrgard, E.
(2025),
Compact Blackbody Radiation Atomic Sensor: Measuring Temperature using Optically Excited Atoms in Vapor Cells, Physical Review Applied, [online], https://doi.org/10.1103/PhysRevApplied.23.044037, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=958572
(Accessed June 7, 2025)
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Compact Blackbody Radiation Atomic Sensor: Measuring Temperature using Optically Excited Atoms in Vapor Cells
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Author(s)
David La Mantia, , , , , , , ,
Abstract
We demonstrate a blackbody radiation thermometer based on optically excited rubidium atoms in a vapor cell. Operating as a calibrated contact thermometer from 308K to 343 K, we realize temperature uncertainty as low as 0.04 %, and statistical temperature sensitivity of 0.1 % in one second. Additionally, we describe an extension to this measurement scheme where the device operates as a self-calibrated, or primary, thermometer. We make progress toward realizing a primary thermometer by demonstrating a temperature-dependent self-consistent calibration scheme, with temperature accuracy of order 1 % limited by the uncertainty in atomic transition dipole matrix elements.Citation
Physical Review Applied
Issue
23
Pub Type
Journals
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Created April 17, 2025, Updated June 3, 2025