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Research Projects of → Physics Department

Project Title :
Nuclear structure and reactions for drip-line nuclei in relativistic models
Principal Investigator and Affiliation : Dr. K. C. Panda
Co-Investigator and Affiliation : Dr. Z. Naik, School of Physics, Sambalpur University, Sambalpur, Odisha and Prof. S.K. Patra Institute of Physic, Sainik School, Bhubaneswar, Odisha, India
Funding Agency : Science and Engineering Research Board (SERB), DST, India
Amount Sanction and Duration : Rs. 17,32,060/-   -   March 2017 to March 2020
Project Proposal :

The study of structures and reactions of nuclei far from the beta-stability line and that of very heavy region are of much current interest. In the present research proposal, we plan to study theoretically the structures and reactions of such nuclei with various relativistic models.

It has been proved that the sigma, omega, rho and photon model and also the SU(3) formalism with standard interaction and recently with the self-interactions with various meson, i.e., the effective field theory, are considered to be very successful. We will apply such relativistic models to study (a) Nuclear reactions and collective modes of exotic nuclei, (b) Nuclear structure of finite nuclei and infinite nuclear matter.

In this project, properties and decay modes of super-heavy nuclei will be studied by RMF formalisms. Codes will be developed for such studies in large model spaces. Development of the existing RMF codes to include synthesis of super-heavy nuclei will be taken up through this project. Decay of such nuclei will be studied by developing an improved version of the existing RMF codes. The same formalism will also be applied to drip-line nuclei to study the halo and skin properties. The appearance of appearance/disappearance of new magic number will also be analyzed within these models.

Project Title :
Molecular Design and Electro-Optic Tuning of Phase Structures, Photo Stability of Model Liquid Crystals for Laser and Communication Wavelengths
Principal Investigator and Affiliation : Prof. D.P. Ojha
Co-Investigator and Affiliation :
Funding Agency : The CSIR, Government of India, New Delhi-110 016, India
Amount Sanction and Duration : 17 Lakhs   -   2016-2019
Project Proposal :

The technological benefits of the advances in liquid crystals (LCs) is evident by the existence of a variety of consumer products that use these materials in fiber-optic communications, display devices ranging from simple indicators to sophisticated colour lap-top computers. The scientific break through in this field is equally impressive, with discoveries of new phases with the different structures, and phases. These structures and phases may also lead to the unique applications of these materials. However, the scientific & research efforts of molecular design of liquid crystal molecules are disorganized, due to the nature of these sciences, which require in-depth focus on electro-optic tuning of the phase structures and photo stability molecular models, and design parameters. On the scientific front, the tunability issues that have to be considered are often disregarded due to lack of adequate molecular models, and design parameters.

The electro-optic tuning phenomena of liquid crystal derivatives, in which the light can be acting as a stimulus and control parameter, have attracted a significant amount of attention because of the promising applications of these molecules in tuning/ using within the desired wavelength regions, various display and photonic devices, such as wave guides in fibre-optics, erasable optical data storage, and optical switch components. Most of the studies are focused on phase transition temperatures, order parameters, and structure-property relationships, where almost no actual molecular geometry has been taken into consideration. Since, the molecular design, and electro-optic tuning of phase structures and photo stability of model liquid crystals need a unique attention for communication wavelengths, the present proposal is aimed to take up this aspect exclusively.