@inproceedings{571d0b85abed4841b191e053474332fe,
title = "Focus-free optical-resolution photoacoustic microscopy using an all-fiber Bessel beam generator",
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.",
keywords = "Bessel beam generator, fiber optics, Optical-resolution photoacoustic microscopy",
author = "Chulhong Kim and Sungjo Park and Jongki Kim and Sungrae Lee and Mansik Jeon and Jeehyun Kim and Kyunghwan Oh",
year = "2013",
doi = "10.1117/12.2003303",
language = "English",
isbn = "9780819493507",
series = "Progress in Biomedical Optics and Imaging - Proceedings of SPIE",
booktitle = "Photons Plus Ultrasound",
note = "Photons Plus Ultrasound: Imaging and Sensing 2013 ; Conference date: 03-02-2013 Through 05-02-2013",
}