Eminent Physicist P. Hariharan passes away

Published: July 28, 2015

Eminent Indian physicist Dr Parameswaran Hariharan passed away in California, United States. He was 89.
Physicist career

  • Hariharan had contributed in various researches including in the design of a new 3-beam interferometer, first practical radial-shear interferometer and double passed Fabry-Perot interferometer.
  • He was also the first physicist to apply digital phase-shifting techniques to holographic interferometry in order to measure strains and vector displacements.
  • He had developed multicolour rainbow holograms and improvised multicolour reflection holograms.
  • In his entire career, Dr. Hariharan had authored 4 books and published more than 200 research papers.

Personal life

  • Hariharan was born on December 24, 1926. He was the son of Professor H. P. Waran (H. Parameswaran) of Presidency College and the son-in-law of Alladi Krishnaswamy Iyer.
  • He worked at New Delhi based National Physical Laboratory (NPL) from 1949 to 1951 and at the Ottawa based National Research Council (NRC) from 1951- 1954.
  • He had received a PhD (doctorate) for his work on photographic resolving power.

Awards: Joseph Fraunhofer Medal of the Optical Society of America, Walter Boas Medal of the Australian Institute of Physics and Thomas Young Medal of the Institute of Physics, London.

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