Continuously tuneable on-chip photonic hook for manipulating nanoparticles along curved trajectories

Aneesh Vincent Veluthandath; Ganapathy Senthil Murugan

doi:10.1117/12.2650734

15 March 2023 Continuously tuneable on-chip photonic hook for manipulating nanoparticles along curved trajectories

Aneesh Vincent Veluthandath, Ganapathy Senthil Murugan

Proceedings Volume 12436, Complex Light and Optical Forces XVII; 124360K (2023) https://doi.org/10.1117/12.2650734
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

The curvature and intensity of photonic hooks depend on the size, shape, and refractive index of the particles and can be used as optical tweezer that can guide cells/nanoparticles around obstructions. We propose the generation of on-chip photonic hook from a TiO2 hemispherical dome on SiO₂ substrate. We further found that the curvature of the photonic hook can be continuously tuneable as a function of angle of illumination. For illumination angles below 20°, the photonic hook bends towards the optical axis and for angles above 20°, the beam bends away from the optical axis, forming a tuneable photonic hook.

Conference Presentation

Citation Download Citation

Aneesh Vincent Veluthandath and Ganapathy Senthil Murugan "Continuously tuneable on-chip photonic hook for manipulating nanoparticles along curved trajectories", Proc. SPIE 12436, Complex Light and Optical Forces XVII, 124360K (15 March 2023); https://doi.org/10.1117/12.2650734

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