Shapes of rotating superfluid helium nanodroplets
- Univ. of Southern California, Los Angeles, CA (United States). Dept. of Physics and Astronomy
- Univ. of Southern California, Los Angeles, CA (United States). Dept. of Chemistry
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Chemical Sciences Division; Univ. of California, Berkeley, CA (United States). Dept. of Chemistry
- SLAC National Accelerator Lab., Menlo Park, CA (United States). Linac Coherent Light Source (LCLS); Argonne National Lab. (ANL), Lemont, IL (United States)
- SLAC National Accelerator Lab., Menlo Park, CA (United States). Linac Coherent Light Source (LCLS); Stanford Univ., Stanford, CA (United States). Dept. of Applied Physics
- Technical Univ. of Berlin, Berlin (Germany). Inst. of Optics and Atomic Physics
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Chemical Sciences Division; Univ. of California, Berkeley, CA (United States). Dept. of Chemistry; Vescent Photonics, Inc., Golden, CO (United States)
- Univ. of Southern California, Los Angeles, CA (United States). Dept. of Chemistry; IPG Photonics, Santa Clara, CA (United States)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Chemical Sciences Division; Aarhus Univ., Aarhus (Denmark). Dept. of Chemistry
- SLAC National Accelerator Lab., Menlo Park, CA (United States). Linac Coherent Light Source (LCLS); Technical Univ. of Berlin, Berlin (Germany). Inst. of Optics and Atomic Physics
- SLAC National Accelerator Lab., Menlo Park, CA (United States). Linac Coherent Light Source (LCLS)
- SLAC National Accelerator Lab., Menlo Park, CA (United States). Linac Coherent Light Source (LCLS); California Lutheran Univ., Thousand Oaks, CA (United States)
- Univ. of Illinois at Urbana-Champaign, Urbana, IL (United States). Dept. of Materials Science and Engineering; Univ. of Southern California, Los Angeles, CA (United States). Monk Family Dept. of Chemical Engineering and Materials Science
- Univ. of Saskatchewan, Saskatoon, SK (Canada). Dept. of Geological Sciences
- SLAC National Accelerator Lab., Menlo Park, CA (United States). Linac Coherent Light Source (LCLS) and Photon Ultrafast Laser Science and Engineering Inst. (PULSE); Argonne National Lab. (ANL), Lemont, IL (United States); Northwestern Univ., Evanston, IL (United States). Dept. of Physics and Astronomy
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Chemical Sciences Division
- Univ. of Southern California, Los Angeles, CA (United States). Dept. of Physics and Astronomy and . Dept. of Chemistry
Rotating superfluid He droplets of approximately 1 μm in diameter were obtained in a free nozzle beam expansion of liquid He in vacuum and were studied by single-shot coherent diffractive imaging using an x-ray free electron laser. The formation of strongly deformed droplets is evidenced by large anisotropies and intensity anomalies (streaks) in the obtained diffraction images. The analysis of the images shows that in addition to previously described axially symmetric oblate shapes, some droplets exhibit prolate shapes. Forward modeling of the diffraction images indicates that the shapes of rotating superfluid droplets are very similar to their classical counterparts, giving direct access to the droplet angular momenta and angular velocities. The analyses of the radial intensity distribution and appearance statistics of the anisotropic images confirm the existence of oblate metastable superfluid droplets with large angular momenta beyond the classical bifurcation threshold.
- Research Organization:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences, and Biosciences Division; National Science Foundation (NSF)
- Grant/Contract Number:
- DMR-1501276; CHE-1362535; AC02-05CH11231; AC02-06CH11357; LA1214; AC02-76SF00515
- OSTI ID:
- 1353180
- Alternate ID(s):
- OSTI ID: 1344133; OSTI ID: 1459382
- Journal Information:
- Physical Review B, Vol. 95, Issue 6; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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