ELOS 2022

C K Jayasankar

C K Jayasankar, Speaker at Optics Conferences
Sri Venkateswara University, India
Title : International year of glass-2022 – life line of lanthanide doped glasses for photonic applications


Out of many materials, glasses are not only used initially as decorative and colored gem stones but play life line for today progress and prosperous of modern science and technology. Moreover, glass is the only material that can be fabricated bulky slabs for construction of stable and strong monuments but also can be fabricated complex miniature sizes of optical fibers which revolutionized communication technology. In the present era, there is a huge demand for good optical quality, transparent and highly homogenous systems for solid state visible lighting, w-LEDs, waveguides, optical sensors, high density optical memories based on frequency-domain, lasers, and optical amplifiers. In this connection, widely being focused on the study of optical properties of lanthanide (Ln)-doped silicate, tellurite, germanate, and phosphate glasses. Such glass materials are very potential luminescence material for advanced science and technological applications, facilitates sustainability, a green world and enriches our lives besides promoting and celebrating 2022 as United Nations International Year of Glass (IYOG-2022). Hence, our group has been actively working in the field of Ln spectroscopy and prepared variety of Ln activated glasses, glass- ceramics and nano-phosphors and characterized their excited state dynamics systematically and uniformly. The present talk focuses and highlights the importance, preparation, optimization of the concentration as well as composition by using various spectroscopic/analytical techniques and developed Ln-doped glasses for modern photonic applications, celebrating IYOG-2022.

Acknowledgments: The author is highly grateful to DAE-BRNS, Govt. of India for the sanction of major research project (No.2009/34/36/BRNS/3174, dt.12-02-2010) under MoU between Sri Venkateswara University, Tirupati & DAE-BRNS, Mumbai. The author is also thankful to UGC, New Delhi, India for the award of UGC-BSR Faculty Fellow (No. F.18-1/2011/(BSR) dated 24-11-2017).

What will audience learn from your presentation?

  1. Importance of glasses
  2. Role of rare earth doped glasses
  3. Development of rare earth doped glasses for photonic device applications



Prof.Dr.C.K. Jayasankar, Ph.D., F.N.A.Sc., studied Physics at the Sri Venkateswara University, Tirupati-517 502, India and graduated as M.Sc. in 1978. He then joined the research group of Late Prof.S.V.J. Lakshman and received his Ph.D. degree in 1984 at the same University. After two years (1984-86) PDF supervised by Dr.Pierre Porcher, CNRS-Meuodon-Bellevue, France) and another two years (1986-88) PDF supervised by Prof.F.S. Richardson, Chemistry Department, University of Virginia, USA he joined as an Associate Professor in Physics at S.V.University and elevated to Professor of Physics. So far, he has published 320 research papers in SCI(E) journals (Scopus Citations:10266 and h-index:58).