00000nam a2200000 a 4500 20251203110524.0 8185618100 621.381045 GHA Ghatak, Ajoy Optical electronics Cambridge CUP 1987 xiv,624p. 22cm. PB Indian reprint of Foundation books Optics Optical electronics Thyagarajan, K _ 110163 LIBSC C 93046 93046 0 0 0 0 PU PU 2004-12-02 180.00 0 621.381045 GHA 110163 BK