Department of Physics
Home Research  Department of Physics  Research Areas

Research Areas

PHOTONICS
The generation, emission, modulation, transmission, amplification and detection of light are studied under the science of photonics, covering all technical aspects over the entire spectrum of electromagnetic radiations. The science is closely related to classical and modern optics giving the scope to study practical application of optics like optical fiber communications, optoelectronics, microscopy, astronomy and so on.
RESEARCH SUMMARY
  • Research work in photonics is being undertaken in the sub areas of non-linear optics, nanophotonics, biophotonics, fiber optics and photonic sensors. Non-linear optical properties of varied materials including novel nano materials are being studied using high power pulsed Nd:YAG laser and associated systems. The department has an automated Z-scan setup for such studies. Non-linear effects in fibers, surface Plasmon resonance studies, switching and power limiting properties of Bacteriorhodophsin, design and construction of multi-modal microscope, nanomaterial synthesis by laser ablation, multi-parameter sensing using optofluidic ring resonators and fiber gyroscope sensors are the various research activities carried out in this area.
MAJOR RESEARCH ACTIVITIES
Research Projects
  • Design and Development of Multimodal Optical Microscope using Fourier Optical Image Processing funded by DST
  • Design and characterization of optofluidic resonator geometries for biomedical sensing applications funded by UGC-DAE-CSR, Kalpakkam Node
Collaborations
  • UGC DAE CSR – Kalpakkam Node; Dr. B K Panigrahi, Indira Gandhi Centre for Atomic Research, Kalpakkam
  • Dr. Sai Siva G, Dept. of Instrumentation & Applied Physics, Indian Institute of Science, Bangalore
  • Prof. A M Rao, Clemson University, USA
  • Dr. Shivakiran Bhaktha B N, Indian Institute of Technology, Kharagpur
  • Dr. V Lakshminarayana, Dr. Reji Philip, Raman Research Institute, Bangalore
  • Prof. B. Raghavendra Prasad, Indian Institute of Astrophysics, Koramangala, Bangalore
Back to top
NANOSCIENCE AND NANOTECHNOLOGY
Nanoscience and Nanotechnology deals with the study and control of matter at atomic and molecular scale. This highly interdisciplinary and versatile field brings together scientists and engineers from applied physics, materials science, chemistry, biology, medicine and so on to produce, characterize and effectively use materials of such low dimensions for variety of applications, ranging from energy production and drug delivery to cosmetics and clothing.
RESEARCH SUMMARY
  • Research activity in Nanoscience has now grown as a full-fledged thrust area of research of the department. The work done in this area can be broadly divided into energy and healthcare applications. Research is being carried out to study novel nanomaterials and nanocomposites for efficient thermoelectric power generation, synthesis of nanomaterials for water purification and fluoride removal, new materials for efficient photovoltaic applications, Pharmaceutical Nanotechnology – Nano formulations for Improved Therapeutic Efficacy, Fluorescent Nanomaterials for Biomedical applications and nanomaterials for sensing applications.
MAJOR RESEARCH ACTIVITIES
Research Projects
  • Studies on Metal-Semiconductor nanocomposites as high performance thermoelectric materials, funded by DAE-BRNS
Collaborations
  • Prof. A M Rao, Clemson University, USA
  • Prof. S Mitra, New Jersey Institute of Technology, USA
  • SSSIHMS, Prasanthigram
  • Raman Research Institute, Bangalore
  • Food and Drug Administration (FDA), USA
Back to top
NUCLEAR PHYSICS
The field of science dedicated to the study and understanding of the atomic nuclei is called Nuclear Physics. It is concerned with the nucleus of the atom and the interaction of different nuclei. Nuclear Spectroscopy is a branch of Nuclear Physics that is concerned with the study of the discrete spectrum of nuclear states. Research in Nuclear Physics reaches out to various applications like nuclear power production, nuclear medicine, nuclear magnetic resonance imaging, geology and archaeology.
RESEARCH SUMMARY
  • Low energy nuclear spectroscopy research facility was established in the department in early 1990’s. With the available research facilities, electron-gamma spectroscopy studies on level structures of odd-odd deformed nuclei of interest are carried out.

    Conversion electron studies, singles and co-incidence gamma studies and X-ray spectra studies are carried out off-line using liquid nitrogen cooled, HPGe and Si(Li) detectors coupled to PC based multi-channel analyzers. Indigenously built mini-orange electron transporter coupled to Si(Li) detectors are often used for conversion electron studies.

    Theoretical studies and model based predictions of isomers and levels structures in odd-odd deformed nuclei are also being undertaken.
MAJOR RESEARCH ACTIVITIES
  • Precision Measurements of Internal Conversion Coefficients (ICCs) employing a Mini Orange Spectrometer for comparison with existing theories sponsored by UGC major Research Project
Collaborations
  • BARC, Mumbai
  • VECC, Kolkata
  • NNDC, BNL, USA
  • GSI, Germany
Other Activities
  • Evaluation of Nuclear Structure and Decay Data for mass chain A=215, A=219 and A=227
  • Atomic Mass evaluation – in collaboration with GSI, Germany
Back to top
© Sri Sathya Sai Institute of Higher Learning, Vidyagiri, Prasanthi Nilayam - 515 134, India.