Dr. Brian Patton Profile

Dr. Brian Patton

Physicist at SAMSUNG Research America

SPIE Involvement:

Author

Area of Expertise:

Atomic physics , Research & development , Grant proposal preparation , Atomic magnetometry , Spectroscopy , Project mangagement

Publications (3)

Proceedings Article | 5 January 2017 Paper

Forty years after the first dark resonance experiment: an overview of the COSMA project results

E. Mariotti, G. Bevilacqua, V. Biancalana, R. Cecchi, Y. Dancheva, Alen Khanbekyan, C. Marinelli, L. Moi, L. Stiaccini, S. Cartaleva, C. Andreeva, E. Alipieva, S. Gateva, A. Krasteva, D. Slavov, E. Taskova, M. Taslakov, P. Todorov, S. Tsvetkov, A. Wilson Gordon, L. Margalit, W. Gawlik, S. Pustelny, A. Stabrawa, J. Sudyka, A. Wojciechowski, F. Renzoni, C. Deans, S. Hussain, L. Marmugi, D. Rassi, O. Ozun, D. Sarkisyan, H. Azizbekyan, R. Drampyan, Alek. Khanbekyan, R. Mirzoyan, A. Papoyan, A. Sargsyan, S. Shmavonyan, A. Tonoyan, P. Ghosh, S. Dey, S. Mitra, B. Ray, K. Nasyrov, P. Chapovsky, V. Entin, N. Nikolov, N. Petrov, D. Budker, B. Patton, A. Wickenbrock, E. Zhivun, S. Gozzini

Proceedings Volume 10226, 102260K (2017) https://doi.org/10.1117/12.2264896

KEYWORDS: Optical coatings, Sensors, Chemical species, Magnetism, Rubidium, Magnetometers, Polarization, Signal detection, Optical pumping, Luminescence

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Proceedings Article | 24 May 2011 Paper

Heading error in an alignment-based magnetometer

Chris Hovde, Brian Patton, Oscar Versolato, Eric Corsini, Simon Rochester, Dmitry Budker

Proceedings Volume 8046, 80460Q (2011) https://doi.org/10.1117/12.883953

KEYWORDS: Magnetometers, Magnetism, Polarization, Rubidium, Error analysis, Sensors, Prototyping, Cesium, Head, Electronics

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A prototype magnetometer for anti-submarine warfare applications is being developed based on nonlinear magneto-optical rotation (NMOR) in atomic vapors. NMOR is an atomic spectroscopy technique that exploits coherences among magnetic sublevels of atoms such as cesium or rubidium to measure magnetic fields with high precision. NMOR uses stroboscopic optical pumping via frequency or amplitude modulation of a linearly polarized laser beam to create the alignment. An anti-relaxation coating on the walls of the atomic vapor cell can result in a long lifetime of 1 s or more for the coherence and enables precise measurement of the precession frequency. With proper feedback, the magnetometer can self-oscillate, resulting in accurate tracking and fast time response. The NMOR magnetic resonance spectrum of ⁸⁷Rb has been measured as a function of heading in Earth's field. Optical pumping of alignment within the F=2 hyperfine manifold generates three resonances separated by the nonlinear Zeeman splitting. The spectra show a high degree of symmetry, consisting of a central peak and two side peaks of nearly equal intensity. As the heading changes, the ratio of the central peak to the average of the two side peaks changes. The amplitudes of the side peaks remain nearly equal. An analysis of the forced oscillation spectra indicates that, away from dead zones, heading error in self-oscillating mode should be less than 1 nT. A broader background is also observed in the spectra. While this background can be removed when fitting resonance spectra, understanding it will be important to achieving the small heading error in self-oscillating mode that is implied by the spectral measurements. Progress in miniaturizing the magnetometer is also reported. The new design is less than 10 cm across and includes fiber coupling of light to and from the magnetometer head. Initial tests show that the prototype has achieved a narrow spectral width and a strong polarization rotation signal.

Proceedings Article | 8 May 2010 Paper

Sensitive optical atomic magnetometer based on nonlinear magneto-optical rotation

Chris Hovde, Brian Patton, Eric Corsini, James Higbie, Dmitry Budker

Proceedings Volume 7693, 769313 (2010) https://doi.org/10.1117/12.850302

KEYWORDS: Magnetometers, Magnetism, Sensors, Rubidium, Magnetic sensors, Polarization, Laser beam diagnostics, Modulators, Chemical species, Optical fibers

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