Fluidic shaping and in-situ measurement of liquid lenses in microgravity

Omer Luria, Mor Elgarisi, Valeri Frumkin, Alexey Razin, Jonathan Ericson, Khaled Gommed, Daniel Widerker, Israel Gabay, Ruslan Belikov, Jay Bookbinder, Edward Balaban, Moran Bercovici

Research output: Contribution to journalArticlepeer-review


In the absence of gravity, surface tension dominates over the behavior of liquids. While this often poses a challenge in adapting Earth-based technologies to space, it can also provide an opportunity for novel technologies that utilize its advantages. In particular, surface tension drives a liquid body to a constant-mean-curvature shape with extremely smooth surfaces, properties which are highly beneficial for optical components. We here present the design, implementation and analysis of parabolic flight experiments demonstrating the creation and in-situ measurement of optical lenses made entirely by shaping liquids in microgravity. We provide details of the two experimental systems designed to inject the precise amount of liquid within the short microgravity timeframe provided in a parabolic flight, while also measuring the resulting lens’ characteristics in real-time using both resolution target-imaging and Shack-Hartmann wavefront sensing. We successfully created more than 20 liquid lenses during the flights. We also present video recordings of the process, from the lenses’ creation during microgravity and up until their collapse upon return to gravity. The work thus demonstrates the feasibility of creating and utilizing liquid-based optics in space.

Original languageEnglish
Article number74
Journalnpj Microgravity
Issue number1
StatePublished - Dec 2023

All Science Journal Classification (ASJC) codes

  • Biochemistry, Genetics and Molecular Biology (miscellaneous)
  • Agricultural and Biological Sciences (miscellaneous)
  • Medicine (miscellaneous)
  • Space and Planetary Science
  • Materials Science (miscellaneous)
  • Physics and Astronomy (miscellaneous)


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