Research Assistant, Optical engineering

SABYASACHI BARIK

**** **** *****, ******* ****, MD 20740

240-***-**** * *********@*****.**** Linkedin.com/in/sabyasachi-barik/ EDUCATION

Doctor of Philosophy (Ph.D.) in Physics Current

University of Maryland, College Park, MD . GPA: 4/4 Advisors: Prof. Edo Waks and Prof. Mohammad Hafezi Integrated Master of Science (Int-MS) in Physics May 2014 National Institute of Science Education and Research, Bhubaneswar, India. GPA: 3.9/4 AWARDS

• University fellowship, University of Maryland 2014-2015

• INSPIRE Scholarship, Department of Science and Technology, Government of India 2009-2014 SKILLS

• Languages/Software: MATLAB, Python, Mathematica, Linux, Layout Editor, Solidworks

• Simulation packages: Lumerical FDTD and MODE solver

• Nanofabrication: Electron beam lithography machine (Elionix and Raith), Scanning electron microscope (SEM) of Hitachi, TESCAN Focused Ion Beam (FIB), OXFORD ICP etcher, Profilometry, metal evaporator, wet chemistry

• Optics: Free-space and fiber optics, Pulsed lasers, Optomechanics, Optoelectronics, Infrared spectroscopy, time-resolved photoluminescence (PL) measurements, Erbium-Doped Fiber Amplifier (EDFA), semiconductor optical amplifier (SOA) RESEARCH EXPERIENCE

Graduate Research Assistant,

The Institute for Research in Electronics and Applied Physics (IREAP), Joint Quantum Institute (JQI), June 2015- Present

• Led a team of 3 researchers in the Quantum Nanophotonics Group.

• Published 4 first author, peer-reviewed journal articles with more than 240 citations.

• Coauthored 7 other research publications, oral presentation in 4 technical conferences, 5 poster presentations.

• Assisted my supervisor to get a $2M NSF grant for 4 years.

• Collaborations: NIST, Army Research Lab, MIT, University of Rochester. Project: Robust photonic designs for quantum optics 2015-2019

• Developed topological nano-photonic waveguide with a directional coupler on thin-film Gallium Arsenide (GaAs).

• Demonstrated ultra-low propagation loss, bend loss, and tapered waveguide transitions.

• Executed electromagnetic simulations and optimization using Lumerical FDTD, modesolver.

• Designed and fabricated active photonic integrated circuits on semiconductor materials (III-V materials and Silicon) in a class 1000 cleanroom using e-beam lithography.

• Hands-on experience with lasers, cameras (CCD/CMOS), LED lighting, optics, optomechanical and electromechanical systems.

• Performed cryogenic measurements (~2K) under a high magnetic field(~1T) achieved inside Attodry cryostats.

• Statistically analyzed the spectroscopic via MATLAB. Project: Photonic quantum simulator 2017-2018

• Built a quantum simulator using telecom C-band fiber optic component (operated at 1550nm).

• Automated and modeled the device by writing a code in Python.

• Data analysis using MATLAB and Python.

Project: Integrated hybrid photonic platform for UV-photonic interconnect 2019-Present

• Currently fabricating on-chip Mach-Zehnder, arrayed-waveguides, directional couplers on thin-film Lithium Niobite (LN).

• Designed a compact optical module for imaging and spectroscopic analysis at the Ultra-violet spectrum. OTHER EXPERIENCES

Teaching assistant, University of Maryland (UMD) 2014-2015

• Lectured introductory physics to undergraduates in class sizes ranging from 20 to 50.

• Adapted explanations and problems to various skill levels including non-science majors. Mentor, UMD physics graduate mentoring, Women in Physics, English for Speakers of Other Languages (ESOL) 2015-2019

• Mentored 4 undergraduate students and 2 graduate students. Reviewer 2017-2020

• Served as reviewer for five peer reviewed journals: Nature Communication, Nature Nanotechnology, Physical Review Letters (PRL), Physical review X (PRX), Optica.

• Provided feedback to editors on the acceptance of manuscripts related to quantum optics, nanophotonics, topological physics.

SELECTED PUBLICATIONS

1. S Barik et al. “Chiral quantum optics using a topological resonator”, arXiv:1906.11263 (2019) 2. S Barik et al. “A topological quantum optics interface”, Science 359 (6376), 666-668 (2018) 3. S Barik, M Hafezi, “Robust and compact waveguides”, Nature Nanotechnology 14 (1), 8 (2019) 4. S Barik et al. “Two-dimensionally confined topological edge states in photonic crystals”, NJP 18 (11), 113013 (2016)

5. H Chalabi, S Barik et al. “Synthetic Gauge Field for Two-Dimensional Time-Multiplexed Quantum Random Walks”, Phys. Rev. Lett. 123, 150503 (2019) 6. S Dutta, EA Goldschmidt, S Barik et al. “An Integrated Photonic Platform for Rare-Earth Ions in Thin-Film Lithium Niobate”, arXiv:1911.06376 (2019) 7. KS Alee, S Barik et al. “Förster energy transfer induced random lasing at unconventional excitation wavelengths”, Appl. Phys. Lett. 103, 221112 (2013) 8. K Lim, C Ropp, S Barik et al. “Nanostructure-induced distortion in single-emitter microscopy”, Nano Letters 16 (9), 5415-5419 (2016)

9. S Dutta, T Cai, MA Buyukkaya, S Barik et al. “Coupling quantum emitters in WSe 2 monolayers to a metal-insulator-metal waveguide” Appl. Phys. Lett. 113 (19), 191105 (2018) 10. JM Howard, EM Tennyson, S Barik et al. “Humidity-induced photoluminescence hysteresis in variable Cs/Br ratio hybrid perovskites”, The journal of physical chemistry letters 9 (12), 3463-3469

(2018)

11. Y Xu, EM Tennyson, J Kim, S Barik et al. “Active Control of Photon Recycling for Tunable Optoelectronic Materials”, Advanced Optical Materials 6 (7), 1701323 (2018) RESEARCH MEDIA COVERAGE

• Favorable comments about my research work on Topological Quantum Nanophotonics. Covered by IOP physics world, phys.org, Nature research highlights.

• Our work on topological photonic crystal appeared in the Science perspective section of the American Association for the Advancement of Science.

SCHOLARLY PRESENTATIONS (3 out of 4)

• Invited Presentation – “Creating a quantum optics interface with topological photonics”, SPIE Security and defense conference, September 2018, Berlin, Germany

• “A topological quantum optics interface”, American Physical Society (APS) Meeting, March 2018, Los Angeles, CA, USA

• “Observation of edge states at telecom wavelengths in topological photonic crystal” Conference on Lasers and Electro-Optics (CLEO), May 2017, San Jose, CA, USA

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