TY - BOOK AU - Thyagarajan, K AU - Ghatak, A K TI - Lasers : theory and applications SN - 33390 446 x CY - New Delhi KW - Einstein coeffcients -- Light KW - Holography KW - Laser application -- Industry and Science KW - Laser beams KW - Laser rate equations KW - Laser theory KW - Lightwave communications KW - Optical resonators KW - Quantum mechanics N1 - Includes bibliographical references and index ER -