Academic experience and research practice.

Determination of the Speed and Source Height of Coronal Shock Waves Using Type II Solar Radio Bursts

• Analysed 25 metric Type II solar radio bursts recorded by the e-CALLISTO network between January 2022 and October 2023.
• Built a Python noise-reduction and burst-isolation pipeline using maximum-intensity points from each dynamic spectrum.
• Derived shock speeds of 343-1032 km/s and source heights of 1.317-1.724 solar radii from plasma-oscillation theory and the Newkirk coronal-density model.
• Validated the fitted power-law index against Aguilar-Rodríguez et al. (2005) to 99.4% agreement and found no correlation between shock speed and associated CME speed.
• Supervisors: Dr. Janaka Adassuriya and Prof. K. P. S. C. Jayaratne.

Raman Spectroscopic Analysis of Common Minerals in Sri Lanka

• Recorded spectra of eleven Sri Lankan mineral samples using an Andor Kymera 328i-A spectrograph, 532 nm laser, and sulphur calibration reference.
• Processed spectra in Python using asymmetric least-squares baseline correction and Savitzky-Golay smoothing, then assigned characteristic vibrational modes.
• Worked with the Geological Survey and Mines Bureau of Sri Lanka toward a reference Raman dataset for common Sri Lankan minerals.
• Supervisor: Prof. H. H. E. Jayaweera.

Estimating Coronal Magnetic Field Strength from Band Splitting in Type II Solar Radio Bursts

On-site oral presentation of undergraduate research findings to the national physics research community.

On-site oral presentation for physics undergraduates.

Online introductory lecture for university students.

• Certificate in Astronomy course

• Probability and Statistics for first-year Computer Science majors
• Digital Signal Processing for second-year Computer Science majors
• Cryptography and Information Security for second-year Computer Science majors

• Instructor in charge of fourth-year Computational Electrodynamics (10 students)
• Instructor in charge of third-year Advanced Physics Laboratory I (10 students)
• Instructor for second-year Analogue and Digital Electronic Principles Laboratory (120 students)
• Instructor for first-year General Physics Laboratory I and II (120 and 77 students)

Taught solar-radio data analysis using Python at the workshop on Earth-Affecting Solar Transients.

Completed practical training on coronal and interplanetary shocks using SOHO, SDO, STEREO, ground-based observations, SolarSoft, SunPy, AstroPy, and Python.

Designed the first-year optical-spectrometer laboratory sheet, integrating theory, pre-lab questions, and procedures covering prisms, refractive index, diffraction gratings, and atomic emission spectra.

Contributed to question creation, participant coordination, event-day operations, and grading for an astronomy quiz serving school students across Sri Lanka.

Contributed to an SPIE-funded travelling outreach project that brought hands-on science activities to school students in rural areas of Sri Lanka.

Directed music for the society's annual concert, contributed to event organisation, and performed on stage.