I turn complex physical principles into real-world solutions — from computational modeling to experimental systems and automation. My background in atomic and molecular physics fuels a data-driven approach to engineering challenges.
Denuwan Vithanage
Phd Candidate
Denuwan Vithanage
Phd Candidate
Physicist. Engineer. Problem Solver.
Research & Technical Skills
Experimental Physics
- Built and tuned external cavity diode lasers (ECDL) in Littrow configuration
- Performed laser-induced fluorescence (LIF) and saturated absorption spectroscopy (SAS) for atomic and molecular systems
- Implemented laser frequency stabilization using Zeeman-modulated SAS and AC locking techniques
- Designed and optimized double MOT systems for ⁸⁷Rb atom trapping and fluorescence analysis
- Engineered magnetic coil transfer and TOP traps with water-cooled aluminum mounts
- Conducted optical alignment, fiber coupling, and diagnostics for precision spectroscopy
- Assembled vacuum systems, performed He leak testing, and calibrated pressure gauges
- Taught and supervised Electronics and Optics laboratories, mentoring students in experimental techniques, data analysis, and safety
Computational Modeling, Automation & AI
- Designed LabVIEW-based DAQ systems for automated data collection and feedback control
- Developed PID and TEC temperature control circuits and GPIB-based instrument communication
- Simulated molecular collisions (MOLSCAT, QCT) and BEC dynamics (GPE solvers)
- Familiar with scientific programming languages (Fortran, Python, C, Java, MATLAB, Mathematica); skilled in modifying and troubleshooting existing research codes
- Leveraged AI tools (ChatGPT, DeepSeek, Gemini, Perplexity) for code optimization, data interpretation, and documentation — with the ability to critically evaluate AI outputs
- Experienced in HPC workflows (Slurm scheduling, job parallelization, and performance tuning)
Leadership & Collaboration
- Founder and President: Wesleyan Optica Student Chapter, initiating a new optics research and outreach community
- Research Project Leader – Warrior-Scholar Project, mentoring U.S. veterans pursuing science careers
- Mentor to undergraduate and master’s students in the AMO Physics group, supporting research and writing
- Teaching Assistant for undergraduate labs in physics, electronics, and optics
- Web Administrator – GSA, managing communication platforms and digital workflows
- Senior Buddy – International Buddy Program, helping new international students adapt
- Recognized for a collaborative and supportive leadership style combining technical expertise with mentorship
Digital & Communication Skills
- Built and maintained WordPress websites, managing hosting, domain setup, and analytics
- Created Sinhala-language educational and travel videos for the Ceylon Life platform, guiding students on foreign education opportunities
- Skilled in technical writing, data visualization, and presentation design for conferences and outreach
- Experienced in science communication, translating complex research for general audiences
- Strong understanding of social media strategy, digital branding, and professional networking
Resume
Experience
2020 - Present
Graduate Teaching Assistant
Wesleyan University
2018 - 2020
Graduate Teaching Assistant
Miami University
2017 - 2018
Temporary Instructor
Faculty of Engineering, UOP
2016 - 2016
Demonstrator
Faculty of Science, UOP
2010 - 2018
Private Tutor
Self-employed, Sri Lanka
Advanced Level Physics (2013 - 2018)
Grade 6 - 11 mathematics (2010 - 2017)
Education
2020 - Present
Wesleyan University
Middletown, Connecticut, USA
PhD candidate in AMO physics
2018 - 2020
Miami University
Oxford, Ohio, USA
MS in physics
2015 - 2018
Post Garduate Institute of Science
Peradeniya, Sri Lanka
MS in Medical Physics
2011 - 2015
University of Peradeniya
Faculty of Science
BSc in physics & computer science
Stay curious. Stay humble. Keep building.
Blog
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