Prof. Hematha Kumar Wickramasinghe Profile

Prof. Hematha Kumar Wickramasinghe

Chair at Univ of California Irvine

SPIE Involvement:

Author

Proceedings Article | 6 October 2023 Poster

Manipulating phonon-polariton resonances in patterned α-MoO3

Mariia Stepanova, Zhaoxu Li, Mashnoon Sakib, Naveed Hussain, Hemantha Wickramasinghe, Maxim Shcherbakov

Proceedings Volume PC12646, PC126461T (2023) https://doi.org/10.1117/12.2677704

KEYWORDS: Absorption, Transmittance, Radio propagation, Optical transmission, Nanophotonics, Wave propagation, Transparency, Silicon, Optical surfaces, Optical properties

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Proceedings Article | 5 October 2023 Presentation

Thermomechanical nanoengineering of phonon-polaritonic van der Waals materials

Maxim Shcherbakov, Naveed Hussain, Mashnoon Sakib, Zhaoxu Li, Mariia Stepanova, Hematha Wickramasinghe

Proceedings Volume PC12648, PC126480I (2023) https://doi.org/10.1117/12.2678060

KEYWORDS: Nanoengineering, Phonons, Transmittance, Thermography, Finite-difference time-domain method, Engineering, Thermal sensing, Super resolution, Simulations, Silicon

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Proceedings Article | 5 October 2023 Presentation

Evolution of nanoscale optical spectroscopy from NSOM to photo induced force microcopy

H. Wickramasinghe

Proceedings Volume PC12654, PC126540F (2023) https://doi.org/10.1117/12.2678813

KEYWORDS: Near field scanning optical microscopy, Optical spectroscopy, Near field optics, Visible radiation, Optical microscopy, Optical imaging, Nonlinear optics, Mirrors, Mid infrared

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Proceedings Article | 17 September 2018 Presentation

Enabling nanoscale detection of longitudinal and transverse chirality in photo-induced force microscopy using structured light (Conference Presentation)

Mohammad Albooyeh, Mohammad Kamandi, Mohsen Rajaei, Jinwei Zeng, H. Wickramasinghe, Filippo Capolino

Proceedings Volume 10723, 107231A (2018) https://doi.org/10.1117/12.2322805

KEYWORDS: Microscopy, Structured light, Structural engineering, Systems engineering, Superposition

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Proceedings Article | 14 March 2018 Presentation

Nanoscale chirality detection using photo-induced force microscopy (Conference Presentation)

Mohammad Kamandi, Mohammad Albooyeh, Jinwei Zeng, Mohsen Rajaei, Caner Guclu, Kumar Wickramasinghe, Filippo Capolino

Proceedings Volume 10549, 1054916 (2018) https://doi.org/10.1117/12.2291406

KEYWORDS: Microscopy, Spectroscopy, Nanoparticles, Plasmonics, Statistical analysis, Biomedical optics, Receptors, Particles, Nanophotonics

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Proceedings Article | 14 March 2018 Presentation

Probing magnetic nanoprobe in structured light by a subtle soft touch (Conference Presentation)

Jinwei Zeng, Mahsa Darvishzadeh-Varcheie, Mohsen Rajaei, Mohammad Albooyeh, Eric Potma, Filippo Capolino, H. Kumar Wickramasinghe

Proceedings Volume 10549, 1054919 (2018) https://doi.org/10.1117/12.2289527

KEYWORDS: Nanostructures, Atomic force microscopy, Magnetism, Silicon, Microscopy, Near field optics, Nanoprobes, Structured light, Polarization, Near field

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Proceedings Article | 21 September 2017 Presentation

Characterization of Si-disk magnetic nanoprobe by photoinduced force microscopy (Conference Presentation)

Jinwei Zeng, Mohsen Rajaei, Mahsa Darvish, Mohammad Albooyeh, Brian Albee, Hemantha Wickramasinghe, Eric Potma, Filippo Capolino

Proceedings Volume 10343, 103430K (2017) https://doi.org/10.1117/12.2273050

KEYWORDS: Magnetism, Nanoprobes, Microscopy, Beam shaping, Antennas, Silicon

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Proceedings Article | 21 September 2017 Presentation

Sharply focused azimuthally polarized beam characterized by photoinduced force microscopy (Conference Presentation)

Jinwei Zeng, Fei Huang, Caner Guclu, Mehdi Veysi, Hemantha Wickramasinghe, Filippo Capolino

Proceedings Volume 10350, 103500T (2017) https://doi.org/10.1117/12.2273091

KEYWORDS: Magnetism, Microscopy, Near field scanning optical microscopy, Super resolution, Polarized microscopy, Near field optics, Optical microscopy, Optical scanning systems, Distortion, Medical research

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SPIE Journal Paper | 1 August 1993

Detection of high- and low-frequency vibrations using a feedback-stabilized differential fiber optic interferometer

Mehdi Vaez-Iravani, M. Nonnenmacher, H. Kumar Wickramasinghe

OE, Vol. 32, Issue 08, (August 1993) https://doi.org/10.1117/12.10.1117/12.143338

KEYWORDS: Fiber optics, Interferometers, Signal detection, Modulators, Silicon, Michelson interferometers, Reflectivity, Calibration, Feedback loops, Heterodyning

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Proceedings Article | 1 June 1992 Paper

Application of atomic-force microscopy to phase-shift masks

Amalkumar Ghosh, Derek Dove, H. Kumar Wickramasinghe, R. Stowell, Ken Roessler

Proceedings Volume 1673, (1992) https://doi.org/10.1117/12.59839

KEYWORDS: Photomasks, Atomic force microscopy, Phase shifts, Quartz, Chemical species, Optical lithography, Integrated circuits, Metrology, Inspection, Process control

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Showing 5 of 10 publications

SPIE Conference Volume | 5 December 2001

Controlling and Using Light in Nanometric Domains

Conference Committee Involvement (2)

Nanofabrication Technologies

3 August 2003 | San Diego, California, United States

Controlling and Using Light in Nanometric Domains

2 August 2001 | San Diego, CA, United States

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