Investigation of excitation beam modulation using azimuthal polarization to improve STED resolution

Geon Lim, Wan Chin Kim, No Cheol Park

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


To improve the resolution of the CW STED microscope using azimuthally modulated excitation beam modulation, phase retardation and various aperture conditions are simulated and tested. The ring-shaped aperture improves lateral resolution while suppressing axial direction elongation, making it suitable for 3D superresolution imaging of STED microscopy.

Original languageEnglish
Title of host publicationMOC 2019 - 24th Microoptics Conference
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages2
ISBN (Electronic)9784863487123
Publication statusPublished - 2019 Nov
Event24th Microoptics Conference, MOC 2019 - Toyama, Japan
Duration: 2019 Nov 172019 Nov 20

Publication series

NameMOC 2019 - 24th Microoptics Conference


Conference24th Microoptics Conference, MOC 2019

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2019R1A2C1004687, 2019R1C1C1010911).

Publisher Copyright:
© 2019 The Japan Society of Applied Physics.

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials


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