Yissum - Research Development Company of the Hebrew University

Interferometer With Improved Sensitivity and Resolution

Posted by Yissum - Research Development Company of the Hebrew UniversityResponsive · Innovative Products and Technologies · Israel

Summary of the technology

New approach to interferometry enables measurement of smaller phase changes than conventional Michelson interferometer, resulting in improved resolution
US patent only
Project ID : 14-2010-2453

Yissum - Research Development Company of the Hebrew University

Description of the technology

New approach produces better sensitivity, resulting in improved resolution in comparison to conventional Michelson interferometer

Categories

Applied Physics, Optoelectronics / Photonics,Optoelectronic Computing & Optical Communication

Development Stage

Proof of concept. Research completed

Highlights

New approach to interferometry enables measurement of smaller phase changes than conventional Michelson interferometer, resulting in improved resolution

Our Innovation

New radial-polarization interferometer (RPI) combines the concepts of spatially inhomogeneous polarization fields (other than circular, elliptical, or linear) with orthogonal-polarization interferometry to generate a spatially varying intensity pattern along the beam. This yields additional spatial and phase information which improves displacement and phase-change measurements.

The radial-polarization interferometer (RPI) uses inhomogeneous, orthogonally polarized beams in the experimental setup that produce a spatially and intensity varying beam pattern (left) unlike the constant-intensity output from a Michelson interferometer (right). The RPI beam pattern yields additional information that improves phase measurements. (Courtesy of the Hebrew University of Jerusalem)

Key Features

Minimum detectable phase change in the RPI is, on average, 3-4 orders of magnitude smaller compared with the Michelson interferometer, allowing the measurement of much smaller displacements.

Development Milestones

Seeking partners for commercialization

The Opportunity

Applications in atomic-level measurements in research laboratories, semiconductor fabrication, optics, remote sensing, metrology.

Project manager

Matt Zarek
SCOUTING, IDEATION, AND TECHNOLOGY EVALUATION

Project researchers

Uriel Levy
HUJI, Faculty of Science
Applied Physics Department

Related keywords

  • Electronics, Microelectronics
  • Nanotechnologies related to electronics & microelectronics
  • Micro and Nanotechnology related to Electronics and Microelectronics
  • Some other electronics related
  • Micro & Opto Electronics

About Yissum - Research Development Company of the Hebrew University

Technology Transfer Office from Israel

Yissum Research Development Company of the Hebrew University of Jerusalem Ltd. Founded in 1964 to protect and commercialize the Hebrew University’s intellectual property. Ranked among the top technology transfer companies, Yissum has registered over 8,900 patents covering 2,500 inventions; has licensed out 800 technologies and has spun-off 90 companies. Products that are based on Hebrew University technologies and were commercialized by Yissum generate today over $2 Billion in annual sales.

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