The Department of Physics was established as a full fledged, self-supporting (academically), post-graduate and research department in 1978 offers M.Sc.(Materials Science), M.Sc.(Medical Physics), M.Phil.(Physics), M.Tech. (Laser and Electro-optical Engineering) and Ph.D. programmes. All the faculty members of this department are actively involved in research and development in the following areas: X-ray crystallography, High-Pressure Physics, Lasers, Medical Physics, Spectroscopy, Ultrasonics, Solid-state Physics, Nonlinear Science, Polymers, Ceramics and Nano-science.

Areas of Research interest:

X-ray crystallography
Material characterization
Crystal growth
Synthesize and characterization of nanomaterials
Biomedical studies on cancer tissues
Laser Optics and holography
Biophotonics
Nonlinear optical studies on single crystals/ synthesized materials Laser based instrumentation

Professor

9940196279
pkp@annauniv.edu

Professor

9444904300
sekarsg@annauniv.edu

Professor

9840103940
mraja1948@ gmail.com

Professor

24425175
ramalingam_a@yahoo.com

Professor

9941108185
bnsankar@annauniv.edu

Professor

9444103042
surya@annauniv.edu

Professor

9444412270 sganesan@annauniv.edu

Asst. Professor

ssankar@annauniv.edu

Asst. Professor

9841363717
victor@annauniv.edu

Asst. Professor

9841296097
arivuoli@annauniv.edu

Asst. Professor

9840776274
aruna@annauniv.edu

Asst. Professor

kali@annauniv.edu

Asst. Professor

9444038186
kmurali@annauniv.edu

Lecturer

jvelmurugan@yahoo.co.uk

Lecturer

9444201381
krgkrishnan@annauniv.edu

Lecturer

9444036612 kjayabaalan@yahoo.co.uk

Lecturer

9840097261
g_kalpa@yahoo.com

Lecturer

9994744346/ 26170801
sasikala_ganapathy@yahoo.co.in

Lecturer

9444021782
vishista@yahoo.com

Lecturer

9444252458
drmaha@annauniv.edu

Lecturer

9840381165 y_vidya2003@yahoo.co.in

Lecturer

9841919159 justinlenus@yahoo.co.in

Development and characterization of photopolymers for high density optical data storage

Recording of Display Holograms of rare artifacts and antiques for government museum

Development of photosensitive storage material for compact disc.

Laser surface hardening of ferrous materials for industrial applications

Characterization of dual amplified spontaneous emission under nitrogen laser excitation

Synthesis, laser characterization and non-linear studies of dye doped polymer rods.

Photonic Pathology of Neoplastic changes by Native Fluorescence Spectroscopy.

Investigations on Photodynamic Therapy of cancer in animal models.

Fabrication of Rapid Diagnostic system for cancer tissues.

Study of Tissue Optics for Diagnostic and Therapeutic applications.

In vivo radiation dosimetry for Diagnostic and Therapeutic applications: Theoretical and Experimental Investigations.

Radiological risk assessment of public around Nuclear power reactor from medical exposure

Irradiation effects of GaN epitaxial layers

Irradiation effects of wafer bonded GaAs/Si solar cell applications

Monte Carlo aided dosimetry for Brachytherapy sources.

Characterization and development of materials through nanophase technology

Development of metal particulate reinforced Hydroxyapatite biomaterials

Growth of Photorefractive single crystals of Bismuth Germanium Oxide (Bi12GeO20-BGO) and Bismuth Silicon Oxide (Bi12SiO20-BSO) and their characterization

Growth of Lithium Metasilicate (Li2SiO3) and Lithium Metagermanate (Li2GeO3) single crystals by Bridgman and Czochralski techniques and their characterisation for piezo-electric and electro-optic applications

Photo chemical deposition (PCD) of compound semiconductor thin films from aqueous solutions and their characterization for photovoltaic applications.

Growth and Characterization of organic NLO Semicarbazone family crystals

Investigations on the Growth and Irradiation effects of Benzimidazole crystals for technological applications

Investigations on Growth and Characterization of Benzaldehyde Phenyl Hydrazone and N-(2-Chlorophenyl)-(1-Propanamide) For NLO Applications

Patents taken :
International : 9

Dr. S. Ganesan
1. Method and apparatus for detecting the presence of cancerous and precancerous cells in a smear using native fluorescence spectroscopy : US Patent No: 6,080,584 dated 27.06.2000
2. Detection of cancer and precancerous conditions of tissues and/or cells using native fluorescence excitation spectroscopy: US Patent No: 6,091,985 dated 18.07.2000

Dr.K.Murali
1. Method and Apparatus for a Chaotic computing module US patent No.2005/0073337 A1 dated April 7, 2005
2. Method and Apparatus for a Chaotic computing module US patent No. WO 2005/036353 A2 dated April 21, 2005
3. Method and Apparatus for a Chaotic computing Module using Threshold reference signal implementation US patent No. US7096437 B2, dated 22.08.2006
4. Method and Apparatus of a computing module, Patent No. CN1894700A, dated 10.01.2007
5. Method and Apparatus of a computing module, Patent No. US2006/0091905 A1 dated 04.05.2006

Dr.D.Arivuoli : 2 patents (Patent pending)

Brief Write up of Most Successful Research Projects:

Developments in Lasers:
Department of Physics, Anna University in collaboration with Chemistry Department has succeeded in developing organic dye doped solid matrix as an excellent media for high-density holographic storage in the form of optical disc. Also dye doped/hooked polymers have been synthesized and studied for third order optical nonlinearity using Z-scan technique.
Organic dye doped polymer rods synthesized are found to be laser active. The emission wavelength is tunable and the rods are very cost effective when compared with single crystal laser rods.

Medical Physics- Significant Contribution to Emerging Technology

Although, there is a growing body of literature on the use of in-vivo or ex-vivo fluorescence, based either on endogenous fluorophores (autofluorescence) or exogenous drugs (such as those used in photodynamic therapy), as a means to distinguish normal from diseased human tissues. We are proud that the editor of the journal “Photodermatology, Photoimmunology & Photomedicine”, Dr. Brain Diffey has given very good citation about our paper “Native fluoresncence spectroscopy of blood plasma in the characteization of oral malignancy” (Photochem Photobiol 2003; 78: 197-204) in his editorial note on “What’s new in Photobiology” as follows:

“Staying with the oncological theme, Madhuri and colleagues from India studied the native fluorescence characteristics of blood plasma to discriminate patients with different stages of oral malignancy from healthy subjects (3). They determined fluorescence emission spectra of blood plasma in acetone using excitation wavelengths of 405 and 420 nm and observed that the fluorescence spectra of blood plasma from patients with oral malignancy exhibited characteristic spectral differences with respect to normal subjects.

A linear discriminant analysis was then used to classify these characteristic features and the authors were able to show that the technique could discriminate oral malignant patients from normal healthy subjects with a sensitivity of greater than 90%. The study is a good example of how a multi-variable analysis can extract additional diagnostic information from a dataset, compared with more commonly used two-dimensional mathematical analysis”.

This significantly proves that the R & D on Optical Biopsy in Indian scenario is on a par with international status.

Crystal Growth:

In the search of new organic nonlinear optical crystals, aromatic compounds with donor and acceptor substituents have been extensively studied. Based on the importance of crystals in nonlinear optical applications, a number organic, semiorganic and inorganic single crystals have been grown for the first time in the literature. The research funds are from DST, UGC, IUAC and CSIR. There is a strong activity going on in Crystal Growth in the Department of Physics, Anna University:Chennai.