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1 August 2021 Tapered glass capillaries for the optical sorting of nanodiamonds
Christophe Pin, Ryohei Otsuka, Keiji Sasaki
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Proceedings Volume 11798, Optical Trapping and Optical Micromanipulation XVIII; 117981J (2021) https://doi.org/10.1117/12.2594921
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States
Abstract
Tapered glass capillaries can be fabricated having cross-sections only few square-micrometers large. Efficient light focusing and guiding in thin, millimeter-long capillaries filled with a liquid solution provides competitive advantages for the optical sorting of nanoparticles. In this work, optical transport of fluorescent nanodiamonds is demonstrated both in water and DMSO. Size-dependent sorting of a large amount of nanodiamonds is also achieved using a backward liquid flow. An analytical model is used to calculate the femtonewton-scale forces acting on the particles and evaluate the sorting efficiency of tapered capillaries.
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Christophe Pin, Ryohei Otsuka, and Keiji Sasaki "Tapered glass capillaries for the optical sorting of nanodiamonds", Proc. SPIE 11798, Optical Trapping and Optical Micromanipulation XVIII, 117981J (1 August 2021); https://doi.org/10.1117/12.2594921
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KEYWORDS
Optical sorting
Liquids
Nanoparticles
Particles
Capillaries
Diffusion
Optical properties
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