Graduate Reasearch Assistant

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PRIYADARSHINI BHATTACHARYYA

Email: ********@***.***

Ph no.: +1-480-***-****

PROFESSIONAL EXPERIENCE

Graduate Research Assistant Aug 2020 – Jan 2024

Department of Physics, Arizona State University, USA

• Worked on different projects that required a collaborative effort and interdisciplinary approach.

• Designed and built instrumentation required for molecular beam epitaxy growth chamber.

• Grow a few nanometers thick films of different materials.

• Compiled the data electronically and documented procedures & findings, analyzed data for publications and conference proceedings.

• Handled ultra-high vacuum components.

• Worked with the finance team for purchase orders and requisition management.

• Mentored students and provided knowledge transfer to newly joined members.

• Trained in scientific teaching.

Application Developer Mar 2015 – July 2019

International Business Machines Corporation (IBM India Pvt. Ltd.), India

• Delivered SAP Security business solutions for determining authentication and authorization of users, thereby ensuring the data privacy of users.

• Documented weekly, monthly, and annual Security Audit reports.

• Worked with diverse stakeholders, handled client meetings, and integrated work with different teams.

• Provided knowledge transfer to newly joined members.

• Led offshore team and worked with higher management on work strategies and mitigation of problems. Volunteer Intern

Tata Tele Services Limited, India Jun – July 2010

• Trained in Mobile Communication in areas of CDMA and GSM based network activities including planning, implementation and operation of switch, Base Transceiver System, Microwave /Fiber Transmission System, Antenna EDUCATION

PhD in Materials Science & Engineering Spring 2022 – present Arizona State University, USA (3.79/4.00)

MS in Materials Science & Engineering Fall 2019 – Fall 2021 Arizona State University, USA (3.75/4.00)

MTech in VLSI Design 2012 – 2014

University of Calcutta, India (8.44/10.00)

BTech in Electronics and Communication Engineering 2007 – 2011 West Bengal University of Technology, India (7.67/10.00) RESEARCH EXPERIENCE

‘Study of photoemission from electron sources’ May 2022 – Dec 2023 Arizona State University, USA

• Growing thin films of electron sources including alkali antimonide Cs3Sb and bialkali antimonide K2CsSb on different substrates by using physical vapor deposition technique.

• Studying spectral response of electron sources using femtosecond pulsed laser generated by light conversion ORPHEUS pumped by PHAROS.

• Designing and assembling molecular beam epitaxy growth chamber with reflection high energy electron diffraction.

• Handling and maintenance of ultra-high vacuum components, troubleshooting of parts.

• Participation in synchrotron x-ray study of epitaxially grown electron sources at NSLS-II, BNL.

‘Ultrafast x-ray diffraction study of charge density wave in TiSe2’ Aug 2020 – Dec 2021 Arizona State University, USA

• Participation in XFEL experiment at LCLS, SLAC by using ultrashort laser pulse with femtosecond pulse duration and high-average 2

brightness of LCLS, SLAC for pumping the material TiSe2, followed by hard x-rays of LCLS for probing the momentum-resolved diffuse scattering (including data collection and analysis).

‘Correlating x-ray imaging studies on electromigration induced void formation to localized electric field and current density measurements in interconnect’ Mar – May 2020

Arizona State University

• Deposition of highly doped silicon as interconnect test structure with different geometries and thicknesses using SILVACO, followed by measurement of electric field current density at different sites of interconnect and prediction of possible sites for void formation.

‘Charge transport in fluids’ Jul 2013 – Jun 2014

University of Calcutta, India

• Performing electrical characterization of fluids like honey-water solution, polyaniline doped with graphite oxide nanoparticle, analyzing electrical charge transport in honey-water solution.

‘4-channel Audio Mixer and Suppression of Noise’ Sep 2010 – Apr 2011 West Bengal University of Technology, India

• Design of Preamplifier circuits, Adder circuit, and Notch filter on Veroboard, to mixing audio signals from different audio sources and suppressing noise respectively

COMPUTATIONAL TOOL

MATLAB, LabVIEW, Inventor AutoCAD, VESTA, MS office SCHOLARSHIP

• Graduate Research Assistantship, Dept. of Physics, Arizona State University (Fall 2020 – Fall 2023)

• Graduate Engineering Fellowship, Dept. of Material Science Engineering, Arizona State University (Fall 2019 – Spring 2021)

• GATE scholarship from Ministry of Human Resource Development, Government of India (2012 – 2014) PUBLICATION

1. M. J. Hurley, C. P. N. Tanner, J. Portner, J. K. Utterback, I. Coropceanu, A. Das, J. D. Slivka, A. Fluerasu, Y. Sun, S. Song, L. M. Hamerlynck, A. H. Miller, P. Bhattacharyya, D. V. Talapin, G. J. Williams, N. S. Ginsberg, S. W. Teitelbaum. In situ coherent x-ray scattering reveals polycrystalline structure and discrete annealing events in strongly coupled nanocrystal superlattices. Phys. Rev. Research, 2024, 6, 023119

2. G. Gevorkyan, C. Sarabia-Cardenas, A. Kachwala, C. Knill, T. J. Hanks, P. Bhattacharyya, W. H. Li, L. Cultrera, A. Galdi, I. Bazarov, J. Maxson, S. Karkare. A cryogenically cooled 200 kV DC photoemission electron gun for ultralow emittance photocathodes. Review of Scientific Instruments, 2023, 94(9).

3. A. Kachwala, P. Saha, P. Bhattacharyya, E. Montgomery, O. Chubenko, S. Karkare. Demonstration of thermal limit mean transverse energy from cesium antimonide photocathodes. Applied Physics Letters, 2023, 123(4). CONFERENCE PROCEEDING & POSTER

1. M. Gaowei, K. Evans-Lutterodt, R. Acevedo-Esteves, J. Jordan-Sweet, K. P. Mondal, J. Walsh, P. Saha, V. Pavlenko, J. Smedley, C. Pennington, E. M. Echeverria Mora, J. Maxson, P. Bhattacharyya, S. Karkare, W.G. Stam, M. S.J. Van der, T. Juffmann, R. Tromp. Pulsed laser deposition assisted growth of alkali-based photocathodes. in Proc. IPAC, 2024. (under preparation) 2. K. P. Mondal, J. Smedley, C. Pennington, E. M. Echeverria Mora, J. Maxson, P. Bhattacharyya, S. Karkare, K. Evans-Lutterodt, M. Gaowei. Epitaxial Growth of Cesium Potassium Antimonide Photocathode. in Proc. IPAC, 2024. (under preparation) 3. C. Pennington, E. Echeverria Mora, K. Mondal, J. Smedley, P. Bhattacharyya, S. Karkare, K . Evans-Lutterodt, M. Gaowei, J. Maxson. Exploiting optical interference effects to enhance the quantum efficiency of photocathodes. in Proc. IPAC, 2024. (under preparation) 4. K. P. Mondal, M. Gaowei, J. Smedley, C. Pennington, E. Echeverria, P. Bhattacharyya, J. Maxson, K. Evans-Lutterodt, R. Acevedo- Esteves, R. Begay, J. Walsh. Epitaxial Growth of Cesium Potassium Antimonide Semiconductor Photocathode. Bulletin of the American Physical Society, 2024.

5. G. S. Gevorkyan, C. A. Sarabia-Cardenas, P. Bhattacharyya, M. M. Rizi, S. Karkare. Phase space measurements of an electron beam using the ASU cryocooled 200 kV DC electron gun. in Proc. IPAC, 2023, pp. 2182-2185. 6. A. Kachwala, P. Saha, O. Chubenko, P. Bhattacharyya, R. Ahsan, H. U. Chae, R. Kapadia, S. Karkare. Photonics-Integrated Photocathodes. in Proc. IPAC, 2023, pp. 2178-2181. 7. S. Teitelbaum, M. Trigo, D. Reis, G. De La Pena, S. Tongay, A. Botana, R. Kaindl, H. Yavas, T. Sato, L. Boie, M. Hurley, V Krapivin, A. Miller, P. Bhattacharyya, S. Johnson, V. Ovuka, Y. Huang, G. Orenstein. Impulsive Light-driven CDW wavevector modulation in 1T- TiSe2. Bulletin of the American Physical Society, 2023.

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