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Sivaramakrishna Chandrasekhar

Sivaramakrishna Chandrasekhar, Indian physicist (Calcutta 06 August 1930 – Bangalore 08 March 2004)

Brother of material scientist Sivaraj Ramaseshan

Relative of Nobel prize winners being nephew of physicist C.V. Raman and cousin of astrophysicist Subramanyan Chandrasekhar


Predicted and discovered a new kind of liquid crystals, the discotic liquid crystals (1977)

Proposed a simple formula for studying optical rotator dispersion of crystals

Suggested a simple experimental method for correcting extinction errors in x-ray analysis of crystals (1960)

With V.N. Madhusudana & P.P. Kant developed a simple and direct method to measure twist elastic constant (1973)

With R. Nityananda, U.D. Kini & K.A. Suresh discovered the optical analogue of Borrmann effect in crystals (1975)

With B.K. Sadashiva & K.A. Suresh discovered a new type of liquid crystal phase (1977)

Established the physical behavior and properties of discotic systems

Demonstrated that liquid crystals properties could be induced in non-mesomorphic materials by pressure and conversely that mesophases in some systems could be suppressed

Synthesized the first paramagnetic nematogenic compounds

HONORS

Friedericksz Medal, Liquid Crystalline Society of the Russian Academy of Sciences (2000)

LINKS



His brother, Sivaramakrishna Pancharatnam, physicist (Calcutta 09 February 1934 – Oxford 20 May 1969)

Discovered the geometric phase in optics (Pancharatnam-Berry phase) in 1965

Demonstrated the connection between light shifts and dispersion