Orbital angular momentum mode generation using anisotrophic liquid crystal filled capillary

Hyucksu Choi, Yongsoo Lee, Jonghee Eun, Joonwo Jung, Kyunghwan Oh

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

Abstract

We simulated a waveguide of an anisotropic liquid crystal(LC) in a hollow optical fiber(HOF) with O to L bands. It is known that chiral doped 5CB(4-Cyano-4'-pentylbiphenyl) under a capillary boundary condition form a double-twist selfassembly structure. Since birefringence of 5CB has a negative charge, the double-twist structure is equivalent to the graded ring core waveguide. Since optical axis of LC structure has a topological charge, LP modes split into orbital angular momentum(OAM) modes. Also the chiral asymmetry of the waveguide made the nonzero OAM mode to be the highest effective index. To ensure purity of mode, OAM of each modes were calculated and compared with the degree of phase rotation. Dispersion of the modes were also calculated.

Original languageEnglish
Title of host publicationOptical Manipulation and Structured Materials Conference 2021
EditorsTakashige Omatsu, Kishan Dholakia, Hajime Ishihara, Keiji Sasaki
PublisherSPIE
ISBN (Electronic)9781510647206
DOIs
Publication statusPublished - 2021
EventOptical Manipulation and Structured Materials Conference 2021 - Virtual, Online, Japan
Duration: 2021 Apr 202021 Apr 22

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11926
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceOptical Manipulation and Structured Materials Conference 2021
Country/TerritoryJapan
CityVirtual, Online
Period21/4/2021/4/22

Bibliographical note

Publisher Copyright:
© 2021 SPIE.

All Science Journal Classification (ASJC) codes

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

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