Related Experiment Video
Updated: Oct 17, 2025
09:29
Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation
Published on: September 27, 2011
12.4K
Multicore fiber integrated beam shaping devices for long-range plasmonic trapping
Optics Express
|October 7, 2021
Summary
This study demonstrates a novel all-fiber optical trapping system using multicore fibers and surface plasmon polaritons (SPPs) to trap nanospheres. The device enables stable, long-working-distance trapping of nanoparticles.
Area of Science:
- Optics and Photonics
- Nanotechnology
- Biophysics
Background:
- Surface plasmon polaritons (SPPs) enable light manipulation at the nanoscale.
- Multicore fibers offer potential for integrated optical systems.
- Optical trapping is crucial for manipulating micro- and nanoparticles.
Purpose of the Study:
- To develop an all-fiber beam shaping device for optical trapping.
- To investigate the use of SPPs for creating interference patterns for trapping.
- To demonstrate stable trapping of nanospheres using this novel system.
Main Methods:
- Fabrication of a multicore fiber end face with a gold film, air slits, and gratings.
- Generation of multiple deflected beams via SPPs.
- Interference of beams to form a periodic trapping field.
- Calculation of trapping forces using the Maxwell stress tensor method.
Main Results:
- A periodic interference field was generated by multiple deflected beams.
- Stable trapping of a nanosphere was achieved 45 μm from the fiber end face.
- The system demonstrated compact and flexible integration capabilities.
Conclusions:
- The proposed all-fiber system is effective for long-working-distance optical trapping.
- This technology is promising for multiple-particle manipulation.
- The device offers a compact and flexible solution for integrated optical trapping systems.
