S. Pancharatnam
Shivaramakrishnan Pancharatnam | |
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| Born | 9 February 1934 |
| Died | 28 May 1969 (aged 35) |
| Alma mater | Nagpur University Raman Research Institute |
| Known for | Geometric phase |
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| Scientific career | |
| Fields | Quantum optics, optics |
| Institutions | University of Mysore Oxford University |
| Doctoral advisor | C. V. Raman |
Shivaramakrishnan Pancharatnam (9 February 1934 – 28 May 1969) was an Indian physicist who did significant work in the field of optics. He is noted for his discovery of a type of geometric phase sometimes known as Pancharatnam phase for polarized beams passing through crystals.