Imaging Spinor Bose Gasses Using Off-Axis Holography
Abstract: We introduce a novel, non-invasive imaging technique based on spin-dependent off-axis holography (SOAH) for spin-1 Bose-Einstein condensates (BECs). Utilizing a dual reference beam strategy, this method records two orthogonal circular polarization components of a single probe beam. The circular birefringence of spin-polarized atoms induces differing complex phase shifts in the polarization components of the light, which are reconstructed from the interference patterns captured on camera. Our approach enables spin- and density-resolved imaging of both phase and amplitude information \emph{in-situ} on a sub-millisecond time scale with minimal disturbance to the condensate. We explore the technique's efficacy under various background static fields, demonstrating its sensitivity to the quantization axis of the atoms and confirming its effectiveness.
- E. M. Bookjans, A. Vinit, and C. Raman, Quantum phase transition in an antiferromagnetic spinor bose-einstein condensate, Phys. Rev. Lett. 107, 195306 (2011).
- U. A. Khawaja and H. T. C. Stoof, Skyrmion physics in bose-einstein ferromagnets, Phys. Rev. A 64, 043612 (2001).
- H. Mäkelä, Y. Zhang, and K.-A. Suominen, Topological defects in spinor condensates, Journal of Physics A: Mathematical and General 36, 8555 (2003).
- Y. Kawaguchi and M. Ueda, Spinor bose–einstein condensates, Physics Reports 520, 253 (2012), spinor Bose–Einstein condensates.
- T. Isoshima, K. Machida, and T. Ohmi, Spin-domain formation in spinor bose-einstein condensation, Phys. Rev. A 60, 4857 (1999).
- R. Meppelink, S. B. Koller, and P. van der Straten, Sound propagation in a bose-einstein condensate at finite temperatures, Phys. Rev. A 80, 043605 (2009).
- J. Smits, A. P. Mosk, and P. van der Straten, Imaging trapped quantum gases by off-axis holography, Opt. Lett. 45, 981 (2020).
- L. Thylén, The beam propagation method: an analysis of its applicability, Optical and Quantum Electronics 15, 433 (1983).
- H. J. Metcalf and P. Van der Straten, Laser cooling and trapping (Springer Science & Business Media, 1999).
- T.-L. Ho, Spinor bose condensates in optical traps, Phys. Rev. Lett. 81, 742 (1998).
- M. Matuszewski, T. J. Alexander, and Y. S. Kivshar, Spin-domain formation in antiferromagnetic condensates, Phys. Rev. A 78, 023632 (2008).
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