Fabitha K

+91-978*******

adl2wz@r.postjobfree.com

https://in.linkedin.com/in/fabitha-k-83b47257

Education

****-**** ****** ********* ** Technology Madras, Chennai, India PhD in Physics

Cumulative GPA: 8.52/10

2007-2009 University of Calicut, Kerala, India

Master of Science in Physics

Marks %: 77.2/100

2004-2007 University of Calicut, Kerala, India

Bachelor of Science in Physics

(Languages, Mathematics and Chemistry as subsidiary) Marks %: 91.7/100

2002-2004 Board of Higher Secondary Examination Kerala, India Higher Secondary Education

(Languages, Physics, Chemistry, Biology and Mathematics) Marks %: 89.3/100

Research Interest

Light-matter interaction in the lower dimensions:

My doctoral thesis was on realization of ZnO based e cient nano/micro lasers for light emission and sensor applications in the visible spectral range. The work involves fabrication of ZnO nano and micro structures with stabilizing the rare-earth ions in the lattice to introduce the 4f levels within the forbidden gap. These structures function both as a light emitting centre and a resonating cavity. High Q and low threshold WGM lasing at various ranges of the visible spectrum is realized from RE:ZnO microspheres for the rst time. Highly sensitive temperature tuning of the WGM is achieved. ZnO is a well-known cost-e ective and bio-compatible material. These RE:ZnO micro- spheres with only a trace amount of RE could be devised into miniature temperature sensors that operate in the visible spectral range and could contribute to the scienti c research to ful l the world’s growing demand for the e cient temperature sensing devices. Moreover, the resonances can be further enhanced by plasmonic coupling and can also be explored for various sensing (anything which can alter the refractive index of the resonator) applications extending to molecular level biosensing.

Further, I would like to explore these microspheres for their potential applications in quantum information processing particularly for single photon emission and for the e ective light-matter interaction by coupling with the di erent quantum emitters. I am also open to work on WGR based on di erent materials and other spectral regions as well. Skills

• Nanoparticle synthesis

• Micro structures and thin lm growth by Pulsed laser deposition (PLD)

• X-ray di raction (XRD) technique

• Scanning electron microscopy (SEM) technique

• Raman spectroscopy technique

• Photoluminescence (PL) technique with temperature variation

• X-ray photo electron spectroscopy (XPS) technique

• Handling/designing optical systems, laser systems and UHV systems Experience

April 1 to December 31 2019 Indian Institute of Technology Madras, Chennai, India Research Associate

October 1 2018 to March 10 2019 IUST, Awantipora

Assistant professor under the TEQUIP III program

January 8-22, 2017 Kyushu University, Ito campus, Japan Collaborative research visit

November 20-22 2017 Volunteered in International Conference on Laser Abla- tion

(iCOLD-2017) held at IIT Madras

Peer review activities

Refereed for Optics Express { OSA and Optical Materials Express - OSA Academic honours, awards and fellowships

1. Quali ed NET- LECTURESHIP (2010 December) with a rank of 12 in Physical Science 2. Secured 267th All India Rank in GATE 2011 (Graduate Aptitude Test in Engineering) exam conducted by IIT s with a score of 460/1000 in Physical Science 3. Secured BARC Scientist Grade C position in 2011 4. Best paper award, International Symposium for Research Scholars (ISRS-2014), IIT Madras, December 11th-13th 2014

5. Best poster award, International Conference on Laser Ablation (iCOLD-2017), IIT Madras, November 20th-22nd 2017

6. JASSO scholarship by Japanese government for exchange research program for the period of October 1st 2016 to January 7th 2017

Publications in refereed journals

1. K. Fabitha and M. S. Ramachandra Rao, J. Opt. Soc. Am. B. 34, 12, (2017) 2485 2. K. Fabitha, F. Nagasaki, Y. Fujiwara, Y. Wakiyama, D. Nakamura, and M. S. Ramachandra Rao, Appl. Phys. Lett. 112, 26 (2018) 262102

3. K. Fabitha, Y. Wakiyama, H. Oshima, D. Nakamura, and M. S. Ramachandra Rao, J. Phys.D: Appl. Phys. 53 (2020) 135302

4. K. Fabitha, M. S. Ramachandra Rao, M. Muralidhar, K. Furutani and·M. Murakami, J. Supercond. Nov. Magn. 30, 11 (2017) 3117

5. Rajib Mondal, Kalyan Biswas, Tapas Ghosh, K Fabitha, MS Ramachandra Rao, AV Mo- rozkin, AK Nigam, S Quezado, SK Malik, R Nirmala, Mater. Res. Express. 6, 1 (2018) 016106.

6. K. Fabitha and M. S. Ramachandra Rao, Appl. Phys. Lett. 118, 16 (2021) 163104 Patent

High Q and low threshold WGM lasing in the visible spectral range from Sm:ZnO micro-spherical cavities K Fabitha and M S Ramachandra Rao (IDF 1753, 201*********) Seminars, workshops, conferences and papers presented 1. Workshop on HR SEM operational training held at SAIF, Indian Institute of Technology Madras, Chennai, India, November 5th-9th 2012

2. National workshop on Advanced X-ray Techniques and Applications (AXTA 2013), held at Indian Institute of Technology Madras, Chennai, India, April 27th 2013 3. K Fabitha, M. S. Ramachandra Rao et al., "E ect of ZnO bu er layer on the microstructure of ZnO grown on di erent substrates by low temperature hydrothermal method", presented at International Conference in Asia (IUMRS-ICA 2013), held at Indian Institute of Science Bangalore, India, December 16th-20th 2013

4. K Fabitha and M. S. Ramachandra Rao, "Optical studies on Ho doped ZnO", presented at In- ternational Symposium for Research Scholars on Metallurgy, Materials Science and Engineer- ing (ISRS-2014), held at Indian Institute of Technology Madras, Chennai, India, December 11th-13th 2014

5. K Fabitha and M. S. Ramachandra Rao, "Red luminescent Ho3+ doped ZnO nanoparti- cles", presented at Third International Symposium on Semiconductor Materials and Devices

(ISSMD-3), held at Crystal Growth Centre, Anna University, Chennai, India, February 2nd- 5th 2015

6. K Fabitha and M. S. Ramachandra Rao, "Multicolor luminescence from ZnO by doping with rare earth ions", presented at Bringing the Nano world Together 2015 (BTNT) - Oxford Instruments 4th annual seminar for the nanotechnology industry in India, held at Indian Institute of Technology Madras, Chennai, India, November 3rd-4th 2015 7. K Fabitha and M. S. Ramachandra Rao, "A comparative study of sharp visible emissions from Ho3+ and Sm3+ doped ZnO nanoparticles", presented at MRS Fall Meeting and Exhibit, held at Hynes convention center, Boston, Massachusetts, USA, November 29th- December4th 2015 8. K Fabitha and M. S. Ramachandra Rao, "Realization of solidstate lasing from Ho3+ doped ZnO micro/nano- spheres", presented in third International Conference on Nanotechnology for Better Living (ICNBL-2016), held at National Institute of technology, Srinagar, India, May 25th-29th 2016

9. K Fabitha and M. S. Ramachandra Rao, \Realization of solidstate lasing from Ho3+ doped ZnO micro/nano- spheres", presented in third International Conference on Nanotechnology for Better Living (ICNBL-2016), held at National Institute of technology, Srinagar, India, May 25th-29th 2016

10. K. Fabitha, F. Nagasaki, Y. Fujiwara, D. Nakamura and M. S. Ramachandra Rao, \Re- alization of sharp visible emissions from rare earth ion doped ZnO micro-/nano- spheres", presented in International Conference on Laser Ablation (iCOLD-2017) held at IIT Madras, November 20th-22nd 2017

11. K Fabitha and M. S. Ramachandra Rao, \WGM lasing in the visible spectral range from Er3+:ZnO micro-spherical cavities", presented in third International Conference on Nanotech- nology for Better Living (ICNBL-2019), held at National Institute of technology, Srinagar, India, April 7th-11th 2019

References

1. Prof. C. Vijayan

Department of Physics

Indian Institute of Technology Madras

Chennai - 36, India

email - adl2wz@r.postjobfree.com

Tel: 044-********

2. Prof. P. N. Santhosh

Department of Physics

Indian Institute of Technology Madras

Chennai - 36, India

email - adl2wz@r.postjobfree.com

Tel: 044-********

3. Dr. K. Lakshmi Ganapathi

DST Inspire Faculty,

Department of Physics

Indian Institute of Technology Madras

Chennai - 36, India

email - adl2wz@r.postjobfree.com

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