Focus-free optical-resolution photoacoustic microscopy using an all-fiber Bessel beam generator

Chulhong Kim, Sungjo Park, Jongki Kim, Sungrae Lee, Mansik Jeon, Jeehyun Kim, Kyunghwan Oh

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

Abstract

Optical-resolution photoacoustic microscopy (OR-PAM) becomes a premier microscopic imaging tool in biomedicine because it provides agent-free optical absorption information in tissues. By tightly focusing light to a spot, the fine lateral resolution can be achieved in OR-PAM. The focal spot size is typically determined by the numerical aperture of the used objective lens. Here, we demonstrate focus-free OR-PAM using a Bessel beam generator. In this approach, no objective lens is required. We have photoacoustically imaged a carbon fiber with a diameter of ∼6 μm, and the measured lateral resolution was ∼6-7 μm. Beneficially, the complexities of the existing OR-PAM systems can be greatly relieved.

Original languageEnglish
Title of host publicationPhotons Plus Ultrasound
Subtitle of host publicationImaging and Sensing 2013
Volume8581
DOIs
Publication statusPublished - 2013 May 28
EventPhotons Plus Ultrasound: Imaging and Sensing 2013 - San Francisco, CA, United States
Duration: 2013 Feb 32013 Feb 5

Other

OtherPhotons Plus Ultrasound: Imaging and Sensing 2013
CountryUnited States
CitySan Francisco, CA
Period13/2/313/2/5

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All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Radiology Nuclear Medicine and imaging

Cite this

Kim, C., Park, S., Kim, J., Lee, S., Jeon, M., Kim, J., & Oh, K. (2013). Focus-free optical-resolution photoacoustic microscopy using an all-fiber Bessel beam generator. In Photons Plus Ultrasound: Imaging and Sensing 2013 (Vol. 8581). [85812F] https://doi.org/10.1117/12.2003303