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Optical observation of He-3 crystals at mK-temperatures.

Research output: Contribution to journalJournal article


  • J. P. H. Harme
  • Harry Alles
  • A. Babkin
  • Reyer Jochemsen
  • A. Y. Parshin
  • Viktor Tsepelin
  • G. Tvalashvili
Journal publication date07/2000
JournalPhysica B: Condensed Matter
Number of pages2
Original languageEnglish


We report on our new optical setup which employs multiple-beam interferometry for measurements on He-3 crystals. Our interferometer enables us to observe the global shape of the crystal as well as the fine details of the solid/liquid interface on a scale of less than 5 mu m. Phase measurement allows accurate studies of growth and melting kinetics. We present the first images of He-3 crystals obtained with this setup.