The birth of quantum electronics in the middle of the 20th century and the subsquent discovery of the laser led to new trends in physics and a number of photonic technolgies. This volume is dedicated to Peter Franken, a pioneer of nonlinear optics, and includes papers by the founders of quantum electronics, Aleksandr Prokhorov, Nicolaas Blombergen, and Norman Ramsey. The topics covered range from astronomy to nuclear and semiconductor physics, and from fundamental problems in quantum mechanics to applications in novel laser materials and nanoscience.

Dr. Ranjusha Rajagopalan received her PhD in Physics with specialization in battery technology from University of Wollongong, Australia in the year 2017. She is currently working on functionalized organic/inorganic materials for developing high performance metal ion batteries, including sodium and potassium ion batteries at College of Chemistry and Chemical Engineering, Central South University, China. She received her Master and Bachelor Degree in Physics from Calicut University, India.

Her research interests include enhancement of power and cycling performances of battery electrodes by designing novel materials and composites. As part of her collaborative research and exchange programs, she has worked in many foreign universities like Nanyang Technological University, Singapore; Sichuan University, China; and Pai Chai University, S. Korea. She is a recipient of several prestigious fellowships, which includes, postdoctoral international exchange program funding, China 2019-2021; Faculty Scholarship (Research and Innovation division) UOW, Australia, 2014; CSIR (Council of Scientific and Industrial Research) Scholarship, India, 2012; MNRE (Ministry of New and Renewable Energy) Scholarship, India, 2011-2012; DST (Department of Science and Technology) Scholarship, India, 2010-2011. RRC (Resources Regional Center) Scholarship, South Korea, 2011. She has published over 34 journal research articles, 2 book chapters and 1 book and has filed 5 Indian patents in the areas of energy storage and generations.

Dr. Lei Zhang received his PhD in Physics with specialization in energy storage systems from University of Wollongong, Australia in the year 2017. He is currently working on symmetric electrodes for developing novel energy storage system at Centre for Clean Environment and Energy, Griffith University, Australia. He received his Master Degree in Qingdao University Science and Technology, China.

His research mainly focuses on the improvement of cycling performances of silicon-based lithium ion battery by the introduction of the porous structure and conductive coatings. He has published over 25 research articles as the first or corresponding author. He is also the reviewers of the relevant journals, including the ACS Nano, Nano Energy and ACS Applied Materials & Interfaces.