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Dr. S. BRAHADEESWARAN                                           

Associate Professor & Head                                                             

Department of Physics

Bharathidasan Institute of Technology (BIT) Campus Trichy

Anna University

Tiruchirappalli 620024 INDIA

E-Mail: sbrag67@yahoo.com              Mobile: 91-9442317559

Qualifications with field of Specialization

Ph.D                       :         Physics – Indian Institute of Science, Bangalore 

PG                          :         M.Sc. (Materials Science) - Anna University, Chennai

UG                         :          B.Sc. (Physics) - Madurai Kamaraj University

PDF                        :         UK and Japan (6 Years)

Other Responsibilities at        :          Deputy Director of Library                                                                                AUT-T                                                Chief Coordinator of AUT-T Internal Exam (UG/PG),    

Experience

Teaching                 :         12 Years (5 Years in Japan and 7 Years in AUT-T)                          

Research                :         15 Years (Excluding the period spent for Ph.D)

Theory Handled (UG / PG)      :          UG - B.E/B.Tech (Engineering Physics I & II)

                                                              PG – M.Tech (Nanoscience and Technology)

Field of Interest                        :          Developing single crystals for Nonlinear Optical, Terahertz and Organic                                                                                                    

                                                              Semiconductor Applications

Project / Consultancy Details           : 1. DST – SERC Fast Track Young Scientist Scheme (Rs 18.47 Lakhs) 

                                                             2. DST Condensed Matter Physics Project (Rs 29.79 Lakhs)

Guidance                                            :   Ph.D:      2  (Guided)

                                                                Ph.D:      4 (Guiding)

    M.Tech: 12 (Guided)

    M.Tech:  2 (Guiding)

Research Experience Abroad            

Ø      Academic Visitor at University of Strathclyde, Glasgow, Scotland, UK (2001)

Ø      JSPS (Japan Society for the Promotion of Science) Fellowship for foreign researchers, Ministry of 

      Education, Govt. of Japan. at Osaka University (2001 – 2003)

Ø   Specially appointed Researcher at Osaka University, Osaka, Japan (2003 – 2007)

Ø Visiting Academic Staff of Osaka University (while in India) (15th April 2007 - 31st August 2007)

Scholarship and Fellowship (National)

Ø  JRF from Indian Institute of Science, Bangalore (Sponsor: ISRO)

Ø  Ph.D scholarship from Indian Institute of Science, Bangalore (Sponsor: IISc)

Ø  RA (Provisional) from Indian Institute of Science, Bangalore (Sponsor: CSIR)

 Details of Workshop Attended    : Resource Person (invited) for the Conferences and Workshops conducted at   

                                                         VIT University of Vellore, Periyar University of Salem, Periyar Maniammai   

                                                         University of Thanjavur and Loyola College of Chennai, University College of 

                                                         Engineering Tindivanam, Jamal Mohammed College of Tiruchirappalli,

                                                         Bharathidasan University of Tiruchirappalli,

Details of Publications: (No. of Citations 360 & H-index 11 as on 26-12-2014)

Patent (National) :

1.  Rapid Growth of Thin and Flexible Organic Semiconductor Single Crystals Using Modified Solution Technique*

     Patent No.             1584/CHE/2012 (Filed)

     Inventors:               S. Brahadeeswaran, K. Thirupugalmani, G. Shanmugam 

     Applicant:              Anna University of Technology Tiruchirappalli 620024 India

* Sponsored by: DST - SERC Fast Track Young Scientist Scheme (Government of India)

List of Publications in International Journals:

1.   Crystal growth and characterization of sodium p-nitrophenolate dihydrate: a semiorganic nonlinear optical material, S. Brahadeeswaran, V. Venkataramanan,  J.N. Sherwood and H.L. Bhat, Journal of Materials Chemistry 8  (1998) 613  (Impact Factor 6.1)

2.   Twin-free and High-Quality DAST Crystals - Effected through Solutions of Lower Supersaturation Coupled with Isothermal Solvent Evaporation, , S. Brahadeeswaran,   S. Onduka, M. Takagi, Y. Takahashi, H. Adachi, T. Kamimura, M. Yoshimura, Y. Mori, K. Yoshida and T. Sasaki, Crystal Growth & Design 6 (2006) 2463 (Impact Factor 4.72)

3.   Ultrasonic measurement of the elastic constants of sodium p-nitrophenolate dihydrate single crystals, A.V. Alex, J. Philip, S. Brahadeeswaran and H.L. Bhat, Physical Review B 62  (2000) 2973 (Impact Factor 3.772)

4.  Organic nonlinear optical DAST crystals for electro-optic measurement and terahertz wave generation, Y. Takahashi, H. Adachi, T. Taniuchi, M. Takagi, Y. Hosokawa, S. Onzuka, S. Brahadeeswaran, M. Yoshimura, Y. Mori, H. Masuhara, T. Sasaki and H. Nakanishi, Journal of Photochemistry and Photobiology A: Chemistry 183 (2006) 247 (Impact Factor 2.362)

 5.  Dielectric, thermal, and mechanical properties of the semiorganic nonlinear optical crystal sodium p-nitrophenolate dihydrate, . Brahadeeswaran,  H.L. Bhat, N.S. Kini, A.M. Umarji, P. Balaya and P.S. Goyal, Journal of Applied Physics 88 (2000)5935 (Impact Factor 2.20)

6.   Nonlinear optical activity of anhydrous and hydrated sodium p-nitrophenolate S. Brahadeeswaran, V.Venkataramanan and H.L.Bhat, Journal of Crystal Growth 205 (1999) 548 (Impact Factor 1.757)

7.  Influence of dopants on photo-induced damage in GdxY1-xCa4O(BO3)3 crystal  S. Brahadeeswaran, R. Kuwabara, N. Hisaminato, Y. Syuto, K. Sato, H. Kitano, M. Yoshimura, Y. Mori and T. Sasaki, Journal of Crystal Growth 275/1-2  (2005) e887 (Impact Factor 1.757)

8. Growth and characterization of semiorganic sodium para-nitrophenolate dihydrate from aqueous solution, S. Vanishri, S. Brahadeeswaran and H.L. Bhat, Journal of Crystal Growth 275/1-2 (2005) e147  (Impact Factor 1.757)

9. Growth of high quality DAST crystals for THz applications, S. Brahadeeswaran, S. Onduka, M. Takagi, Y. Takahashi, H. Adachi, M. Yoshimura, Y. Mori and T. Sasaki, Journal of Crystal Growth 292 (2006) 441 (Impact Factor 1.757)

10.  Development of DAST Crystals with High Damage Tolerance, Yoshinori Takahashi, Shinji Onzuka, Srinivasan Brahadeeswaran, Masashi Yoshimura, Yusuke Mori and Takatomo Sasaki, Optical Materials 30 (2007) 116 (Impact Factor 1.714)

11.  Controlled Habit and Growth, and Electrooptic Evaluation of Organic Nonlinear Optical 4-Dimethylamino- N-Methyl- 4-Stilbazolium Tosylate (DAST) Crystals K. Nagaoka, H. Adachi, S. Brahadeeswaran, T. Higo, M. Takagi, M. Yoshimura, Y. Mori and T. Sasaki, Japanese Journal of Applied Physics 43 (2004) L261 (Impact Factor 1.309)

12.  High-Quality Organic 4-dimethylamino-N-methyl-4-stilbazolium Tosylate (DAST) Crystals for THz Wave Generation, H. Adachi, T. Taniuchi, M. Yoshimura,  S. Brahadeeswaran, T. Higo, M. Takagi, Y. Mori, T. Sasaki and H. Nakanishi, Japanese Journal of Applied Physics 43 (2004) L1121 (Impact Factor 1.309)

13. Investigations on Influence of Crystal Defects on Laser-Damage Tolerance of Organic Crystal, 4-dimethylamino-N-methyl-4-stilbazolium Tosylate (DAST), Yoshinori Takahashi, Kazumasa Sugiyama, Srinivasan Brahadeeswaran, Shinji Onzuka, Tomosumi Kamimura, Masashi Yoshimura, Yusuke Mori, Kunio Yoshida and Takatomo Sasaki, Japanese Journal of Applied Physics 46  (2007) 318 (Impact Factor 1.309)

14. On Suppression of Narrow-Line Defects (NLD) in Organic 4-dimethylamino-N-methyl-4-stilbazolium tosylate (DAST) Crystals through Uninterrupted Solution Stirring during Growth Process Yoshinori Takahashi, Shinji Onzuka, Srinivasan Brahadeeswaran, Masashi Yoshimura, Yusuke Mori and Takatomo Sasaki, Japanese Journal of Applied Physics 46 (2007) 324 (Impact Factor 1.309)

15. The elastic constants of sodium p-nitrophenolate dihydrate single crystals measured by ultrasonic PEO technique, A.V. Alex, J. Philip, S. Brahadeeswaran and H.L. Bhat, Journal of Pure and Applied Ultrasonics 21 (1999) 47 (Impact Factor NA)

16. Sodium p-nitrophenolate tetrahydrate, S. Brahadeeswaran, H.L. Bhat, J.N. Sherwood, R.M. Vrcelj,  Acta Crystallographica E 58 (2002) m290 (Impact Factor 0.508)

17. Spectroscopic, thermal and mechanical studies on 4-Methylanilinium p-toluenesulfonate - A new organic NLO single crystal, G. Shanmugam and S. Brahadeeswaran, Spect. Chim. Acta A 95 (2012) 177 (Impact Factor 2.098)

18. Synthesis, structure, growth and characterization of a novel organic NLO single crystal: Morpholin-4-iump-aminobenzoate, G. Shanmugam, K. Ravi Kumar, B. Sridhar and S.Brahadeeswaran, Mater. Res. Bull. 47 (2012) 2315–2323 (Impact Factor 2.145)

19. 2-Amino-5-chloropyridinium 4-aminobenzoate, V. Kannan, P. Sugumar, S. Brahadeeswaran and M. N. Ponnuswamy, Acta Crystallographica E68 (2012) o3187 (Impact Factor 0.508)

20. Spectroscopic, Quantum-chemical and X-ray diffraction studies of Piperidinium p- Hydroxybenzoate -combined experimental and theoretical studies on a novel NLO crystal G Shanmugam, K Thirupugalmani, V Kannan, S Brahadeeswaran, Spect. Chim. Acta A 106 (2013) 175-184  (Impact Factor 2.098)

21. Growth of Ultrathin and Highly Efficient Organic Nonlinear Optical Crystal 4′-Dimethylamino‑N‑methyl-4-Stilbazolium p‑Chlorobenzenesulfonate for Enhanced Terahertz Efficiency at Higher Frequencies S. Brahadeeswaran, Y. Takahashi, M. Yoshimura, M. Tani, S. Okada, S. Nashima, Y. Mori, M. Hangyo, H. Ito, and T. Sasaki Crystal Growth  & Design 13 (2013) 415- 421  (Impact Factor 4.72)

22. 2-Amino-6-methylpyridinium 4-hydroxybenzoate V. Kannan, P. Sugumar, S. Brahadeeswaran and M. N. Ponnuswamy Acta Crystallographica E69 (2013) o610 (Impact Factor 0.508)

23. Thermophysical, mechanical and dielectric studies on piperidinium p-hydroxybenzoate A novel organic NLO single crystal G. Shanmugam • K. Thirupugalmani • R. Rakhikrishna • J. Philip • S. Brahadeeswaran, Journal of Thermal Analysis and Calorimetry (in press) (2013) (Impact Factor 1.604)

24. Investigations on influence of coloration on growth of high quality Hydrazonium L–tartrate single crystal V. Kannan, S. Brahadeeswaran, Journal of Crystal Growth 374 (2013) 71-78 (Impact Factor 1.757)

25. Synthesis, growth, thermal, optical, mechanical and dielectric studies of N-succinopyridine: an organic nonlinear optical single crystal V. Kannan, K. Thirupugalmani, G. Shanmugam and S. Brahadeeswaran, Journal of Thermal Analysis and Calorimetry (in press) (2013) (Impact Factor 1.982)

26. Spectroscopic, nonlinear optical and quantum chemical studies on 4 Pyrrolidinium p-Hydroxybenzoate – A phase matchable organic NLO crystal, G. Shanmugam, M.S. Belsley, D. Isakov, E. de Matos Gomes, K. Nehru and S. Brahadeeswaran, Spect. Chim. Acta A 114 (2013)   284-292 (Impact Factor 2.098)

27. Studies on Vibrational, NMR Spectra and Quantum Chemical Calculations of N-Succinopyridine: An Organic Nonlinear Optical Material, V. Kannan, K. Thriupugalmani, S.Brahadeeswaran, Journal of Molecular Structure (accepted) (2013) (Impact Factor 1.404)

28. Studies on thermophysical and mechanical properties of hydrazonium L-tartrate An organic nonlinear optical material V. Kannan, R. Rakhikrishna, J. Philip and S. Brahadeeswaran Journal of Thermal Analysis and Calorimetry (in press) (2013) (Impact Factor 1.982)

29. Rapid growth of thin and flexible organic semiconductor single crystal Anthracene by solution growth technique for device fabrication K. Thirupugalmani, G.Shanmugam, V.Kannan, S.Brahadeeswaran, Journal of Crystal Growth 413 (2015) 67–70 (Impact Factor: 1. 707)

30. Second- and third-order nonlinear optical and quantum chemical studies on 2-amino-4-picolinium-nitrophenolate-nitrophenol: A phasematchable organic single crystal, K. Thirupugalmani, S. Karthick, G. Shanmugam, V. Kannan, B. Sridhar, K. Nehru, S. Brahadeeswaran, Optical Materials 49 (2015) 158–170 (Impact Factor: 2. 023)

Conference Presentations:

Selected International Conferences:

1.    Polymorphism and nonlinear optical activity in sodium p-nitrophenolate,  S. Brahadeeswaran and H.L. Bhat, IUCr Congress of Crystallography, 4-13 Aug 1999, Glasgow, United Kingdom

2.    Crystal growth and characterization of sodium p-nitrophenolate dihydrate and its polymorphs, S. Brahadeeswaran and H.L. Bhat, American Congress on Crystal Growth and Epitaxy (ACCGE-11), 1-6 Aug 1999, Tucson, Arizona, USA. (Invited)

3.    Influence of growth parameters on Gray-track formation in GdYCOB, Y.Syuto,  S. Yasuda, R. Kuwabara, K. Sato, H. Kitano, S. Brahadeeswaran, H. Nakao, M. Yoshimura, Y. Mori and T. Sasaki, IEEE Proceedings CLEO/Pacific Rim 2003 - The 5th Pacific Rim Conference on Lasers and Electro-Optics 15-19 December 2003 Taipei, Taiwan 2 (2003) 554

4.    Growth of high quality organic nonlinear optical DAST crystal and its applications,    S. Brahadeeswaran, T. Higo, M. Takagi, S. Onduka, Y. Takahashi, H. Adachi,  M. Yoshimura, Y. Mori and T. Sasaki, International Conference on Organic Nonlinear Optics (ICONO-8), 7-11 March (2005) 207-208

5.    Nucleation induced by femtosecond laser irradiation in organic DAST solution,  M. Takagi, S. Onduka, T. Higo, Y. Takahashi, S. Brahadeeswaran, H. Adachi, M. Yoshimura, Y. Mori and T. Sasaki, International Conference on Organic Nonlinear Optics (ICONO-8), 7-11 March (2005) 205-206

6.    High quality crystal growth and electro-optic measurement of organic nonlinear optical DAST, Y. Takahashi, T. Higo, M. Takagi, S. Onduka, S. Brahadeeswaran, H. Adachi, M. Yoshimura, Y. Mori and T. Sasaki, International Conference on Organic Nonlinear Optics (ICONO-8), 7-11 March (2005) 205-206

7.    Growth of high quality DAST crystals for Terahertz (THz) applications, S. Brahadeeswaran, S. Onduka, M. Takagi, Y. Takahashi, H. Adachi, M. Yoshimura, Y. Mori and T. Sasaki, 3rd Asian Conference on Crystal Growth and Crystal Technology (CGCT –3), 16-19 October 2005, Beijing, China

8.    Growth of 4-dimethylamino-N-methyl-4-stilbazolium tosylate (DAST) crystal and its application to THz wave generation, M. Yoshimura, M. Suzuki, M. Takagi, Y. Takahashi, S. Onduka, S. Brahadeeswaran, Y. Mori, T. Sasaki, M. Tonouchi and H. Nakanishi, International Workshop on Terahertz Technology (TeraTech’05), 16-18 November 2005, Osaka University, Osaka, Japan

9.    Laser damage evaluation of organic nonlinear optical 4-dimethylamino-N-methyl-4-stilbazolium tosylate (DAST) crystal for THz wave generation, Y. Takahashi, S. Brahadeeswaran, M. Takagi, S. Onduka, H. Adachi, M. Yoshimura, Y. Mori and T. Sasaki, International Quantum Electronics Conference 2005 and the Pacific Rim Conference on Lasers and Electro-Optics 2005, Tokyo, Japan, July 2005

10.  Organic nonlinear optical DAST crystals for Electro-Optic measurement and THz wave generation, Y. Takahashi, T. Taniuchi, H. Adachi, S. Brahadeeswaran, M. Takagi, S. Onduka, M. Yoshimura, Y. Mori, T. Sasaki and H. Nakanishi, The 12th International Conference on Unconventional Photoactive Systems, Oct 2005, Sendai, Japan

11. Development of DAST crystals with high damage tolerance, Y. Takahashi, S. Onduka, M. Takagi, S. Brahadeeswaran, H. Adachi, M. Yoshimura, Y. Mori and  T. Sasaki, 4th International Symposium on Laser, Scintillator and nonlinear optical materials, June 2006, Prague, Czech

12. Terahertz pulse generation in organic crystal DAST from various short pulse IR lasers, M. Yoshimura, M. Suzuki, M. Takagi, Y. Takahashi, S. Onduka, S. Brahadeeswaran, Y. Mori, T. Sasaki and M. Tonouchi, 31st International Conference on Infrared and Millimeter Waves and 14th International Conference on Terahertz Electronics, Sep 2006, Shanghai, China

13. Annealing temperature dependence of Terahertz wave detection by low-temperature-grown-GaAs based photoconductive antennas gated by 1560 nm optical pulses, M. Suzuki, M. Tonouchi, M. Kamakura, Y. Kadoya, M. Yoshimura, M. Takagi,     Y. Takahashi, S. Onduka, S. Brahadeeswaran, Y. Mori, T. Sasaki, 31st International Conference on Infrared and Millimeter Waves and 14th International Conference on Terahertz Electronics, Sep 2006, Shanghai, China

14.  Terahertz emission from various organic crystals, M. Suzuki, M. Tonouchi, M. Yoshimura, M. Takagi, Y. Takahashi, S. Onduka, S. Brahadeeswaran, Y. Mori,   T. Sasaki, 31st International Conference on Infrared and Millimeter Waves and 14th International Conference on Terahertz Electronics, Sep 2006, Shanghai, China   

Selected National Conferences:

1.    Crystal growth and characterization of sodium p-nitrophenol dihydrate, a new semiorganic nonlinear optical material, S. Brahadeeswaran, S. Maheswaran and H.L. Bhat, National Laser Symposium 1995, BARC, Bombay, India.

2.    Crystal growth, defect and mechanical properties of sodium p- nitrophenol dihydrate – a new semiorganic nonlinear optical material, S. Brahadeeswaran, V. Venkataramanan and H.L. Bhat, National Laser Symposium 1996, CAT, Indore, India.

3.    Influence of growth parameters on the quality of Cz grown BGO single Single crystals, S. Maheswaran, S. Brahadeeswaran and H.L. Bhat, 7th MRSI 1996, Indian Institute of Science, Bangalore, India.

4.    Effect of crystallization conditions on nonlinear optical activity of sodium p-nitrophenoxide, S. Brahadeeswaran, V. Venkataramanan and H.L. Bhat, National Laser Symposium ’97, PRL, Ahemadabad, India.

5.    The elastic constants of sodium p-nitrophenolate dihydrate single crysral measured by ultrasonic PEO technique, A.V. Alex, J. Philip, S. Brahadeeswaran and H.L Bhat, National symposium on Ultrasonics, 14-16 Dec. 1998, Pondicherry University, Pondicherry, India.

6.    Anisotropy in thermal diffusion in [NaO(C6H4NO2).2H2O] single crystals, M.S. Kala, J. Philip, S. Brahadeeswaran and H.L Bhat, DAE solid state physics symposium, Dec 1998, Kurukshetra University, Kurukshetra, India.

7.    Growth of sodium p-nitrophenolate dihydrate and the effect of solvents on its NLO activity, S. Brahadeeswaran and H.L. Bhat, National Seminar on Materials Science: An Indian Scene, 19-20 Jan 1998, Bharathidasan University, Tiruchirappalli, India

8.    Thermal and mechanical properties of sodium 4-nitrophenolate dihydrate S. Brahadeeswaran, H.L. Bhat, N.S. Kini and A.M. Umarji, National Laser Symposium, 15 –17 Dec 1999, University of Hyderabad, India

Prizes, Medals and other Honours received:

1. Awarded internationally competitive Japan Society for the Promotion of Science (JSPS) Postdoctoral Fellowship for 24 months by the Govt of Japan

2. Received Young Scientist Award under DST SERC (Govt of India) Fast Track Scheme

3. Awarded scholarship by Indian Institute of Science (IISc) Bangalore to pursue the Ph.D degre 

4. Awarded Junior Research Fellowship (JRF) by Indian Space Research Organization (ISRO) to develop LiNbO3 substrates for SAW devices 

5. Awarded Research Associate (provisional) by Council of Scientific and Industrial Research (CSIR) 

6. Presented 90 (Ninety) minutes talk on Developing materials for Nonlinear Optics to the international graduate students joined in Osaka University

 Details Regarding the Sponsored Projects:

 Academic Accomplishments:

1. Contributed to the Design and Development of M. Tech Nanoscience and Technology (NST) course in Anna University of Technology,Tiruchirappalli (AUTT)

2. Expert – Board of Studies of Department of Physics of Periyar Maniammai University, Thanjavur

3. Authored few chapters in the Engineering Physics I & II text books for the AUTT UG Engineering students (Tamil Medium)