17-22 July 2022
Royal Conservatory of Music, Toronto
America/Toronto timezone

B-field self-cancelling devices for atomic sensors

20 Jul 2022, 17:00
1h 30m
Hart House (Hart House)

Hart House

Hart House

7 Hart House Cir, Toronto, ON M5S 3H3
Poster presentation Quantum information: gates, sensing, communication, and thermodynamics Poster session


A fair number of atomic sensors require a homogeneous B-field for long-lasting Larmor oscillation of atoms. On the other hand, various electronics used in the experients emit magnetic fields, destroying the homogeneity of the deliberately homogeneous B-field. We demonstrate a DBR laser-TEC packaging and a heater which self-cancel their emitted B-field by antiparallel current configurations. These devices can be realized inexpensively without employing MEMS technology. The effect of the self-cancellation is demonstated by a direct measurement and also a LIA signal noise comparison for the heater employed in an atomic magnetometer system.

Presenter name Minwoo Kim

Primary authors

Mr Minwoo Kim (Agency for Defense Development) Dr Sangkyung Lee (Agency for Defense Development) Dr Sin Hyuk Yim (Agency for Defense Development) Mr Ji Hoon Yoon (Agency for Defense Development) Mr Dongkyu Kim (Agency for Defense Development) Dr Kyu Min Shim (Agency for Defense Developement)

Presentation Materials

There are no materials yet.