Study for cell deformability by optical manipulation

Ji Young Moon, Sebin Choi, Joon Sang Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Active control technology of particles in a microchannel using optical force, is an area of interest to scientists in various field today. The optical force is generated by momentum change caused by refraction and reflection of light. The generated optical force changes the surface of the particle to change the angle of incidence of light, so that the force generated by the change in the momentum of light changes. Interpreting this technique through simulation is a complex task. The deformation of a particle, interaction between the surrounding fluid and particle, and reflection and refection of light need to be analyzed simultaneously to be simulated. In this study, a deformable particle in a microchannel with optical sources was simulated with a three-dimensional lattice Boltzmann immersed boundary method. The beam originating from the optical source is analyzed by dividing it into individual ray. To calculate the optical forces acting on the particle, the intensity, momentum and direction of ray were calculated. First, the optical separator problem with one optical source was analyzed by measuring the distance traveled by the optical force. Second, the optical stretcher problem with two optical sources was studied by analyzing the relationship between the intensity of the optical source and the deformation of the particles.

Original languageEnglish
Title of host publicationOptical Trapping and Optical Micromanipulation XV
EditorsGabriel C. Spalding, Kishan Dholakia
ISBN (Electronic)9781510620179
Publication statusPublished - 2018
EventOptical Trapping and Optical Micromanipulation XV 2018 - San Diego, United States
Duration: 2018 Aug 192018 Aug 23

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceOptical Trapping and Optical Micromanipulation XV 2018
Country/TerritoryUnited States
CitySan Diego

Bibliographical note

Funding Information:
This work was supported by the Advanced Research Center Program (NRF-2015R1A5A1037668) through a National Research Foundation of Korea (NRF) grant funded by the Ministry of Science, ICT, and Future Planning (MSIP).

Publisher Copyright:
© 2018 SPIE.

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


Dive into the research topics of 'Study for cell deformability by optical manipulation'. Together they form a unique fingerprint.

Cite this