Journal: Light, Science & Applications

Article Title: Optical trapping of mesoscale particles and atoms in hollow-core optical fibers: principle and applications

doi: 10.1038/s41377-025-01801-5

Figure Lengend Snippet: a Principle of Doppler velocimetry of optically propelled particle in HCF. b Comparison of conventional peak-value searching (PVS) and the time-frequency ridge (TFR) methods to extract the Doppler frequencies . c Sketch of the TFR algorithm for tracking single and multiple Doppler frequency peaks . d The measured Doppler frequencies and the corresponding axial velocities of single and two polystyrene particles with 2 μm diameter . e Top: calculated intensity patterns of the fundamental and higher order modes. Bottom: intensity distribution of mode mixture

Article Snippet: Fig. 12 Cell trapping and transporting in liquid-filled HCF . a Optical propulsion of red blood cells in optofluidic HCF and cell speed monitoring by in-fiber Doppler velocimetry . b Image results of red blood cells capture and propulsion . c Experimental and finite element results of particle guidance under different optical powers . d HCF-OT for cell manipulation and sterile transporting . e HCF-OT with integrated ballistic transport and multi-point capture optical manipulation functions As the simplest form of HCF, capillary fibers have also been used as a functional waveguide for cell trapping and sorting.

Techniques: Comparison

Journal: Light, Science & Applications

Article Title: Optical trapping of mesoscale particles and atoms in hollow-core optical fibers: principle and applications

doi: 10.1038/s41377-025-01801-5

Figure Lengend Snippet: Cell trapping and transporting in liquid-filled HCF . a Optical propulsion of red blood cells in optofluidic HCF and cell speed monitoring by in-fiber Doppler velocimetry . b Image results of red blood cells capture and propulsion . c Experimental and finite element results of particle guidance under different optical powers . d HCF-OT for cell manipulation and sterile transporting . e HCF-OT with integrated ballistic transport and multi-point capture optical manipulation functions

Article Snippet: Fig. 12 Cell trapping and transporting in liquid-filled HCF . a Optical propulsion of red blood cells in optofluidic HCF and cell speed monitoring by in-fiber Doppler velocimetry . b Image results of red blood cells capture and propulsion . c Experimental and finite element results of particle guidance under different optical powers . d HCF-OT for cell manipulation and sterile transporting . e HCF-OT with integrated ballistic transport and multi-point capture optical manipulation functions As the simplest form of HCF, capillary fibers have also been used as a functional waveguide for cell trapping and sorting.

Techniques: Sterility