Toward a miniature endomicroscope: Pixelationfree and diffraction-limited imaging through a fiber bundle

Donggyu Kim; Jungho Moon; Moonseok Kim; Taeseok Daniel Yang; Jaisoon Kim; Euiheon Chung; Wonshik Choi

doi:10.1364/OL.39.001921

Toward a miniature endomicroscope: Pixelationfree and diffraction-limited imaging through a fiber bundle

Donggyu Kim, Jungho Moon, Moonseok Kim, Taeseok Daniel Yang, Jaisoon Kim, Euiheon Chung, Wonshik Choi

Department of Physics

Research output: Contribution to journal › Article › peer-review

85 Citations (Scopus)

Abstract

A fiber bundle is widely used for endoscopic imaging due to its direct image delivery capability. However, there exists an inevitable pixelation artifact, which limits spatial resolution to the diameter of individual fibers. In this Letter, we present a method that can eliminate this artifact and achieve diffraction-limited spatial resolution. We exploited the binary control of a digital micromirror device to measure a transmission matrix of a fiber bundle and to subsequently control mode mixing among individual fibers. In doing so, we achieved a 22 kHz scanning rate of a diffraction-limited focused spot and obtained fluorescence endoscope imaging (58 μm × 58 μm) with near video-rate (10.3 Hz) acquisition. Our study lays a foundation for developing an ultrathin and high-resolution microendoscope.

Original language	English
Pages (from-to)	1921-1924
Number of pages	4
Journal	Optics Letters
Volume	39
Issue number	7
DOIs	https://doi.org/10.1364/OL.39.001921
Publication status	Published - 2014 Apr 1

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

Access to Document

10.1364/OL.39.001921

Cite this

@article{785e385e23c34aafa5ffa770c366984b,

title = "Toward a miniature endomicroscope: Pixelationfree and diffraction-limited imaging through a fiber bundle",

abstract = "A fiber bundle is widely used for endoscopic imaging due to its direct image delivery capability. However, there exists an inevitable pixelation artifact, which limits spatial resolution to the diameter of individual fibers. In this Letter, we present a method that can eliminate this artifact and achieve diffraction-limited spatial resolution. We exploited the binary control of a digital micromirror device to measure a transmission matrix of a fiber bundle and to subsequently control mode mixing among individual fibers. In doing so, we achieved a 22 kHz scanning rate of a diffraction-limited focused spot and obtained fluorescence endoscope imaging (58 μm × 58 μm) with near video-rate (10.3 Hz) acquisition. Our study lays a foundation for developing an ultrathin and high-resolution microendoscope.",

author = "Donggyu Kim and Jungho Moon and Moonseok Kim and Yang, {Taeseok Daniel} and Jaisoon Kim and Euiheon Chung and Wonshik Choi",

year = "2014",

month = apr,

day = "1",

doi = "10.1364/OL.39.001921",

language = "English",

volume = "39",

pages = "1921--1924",

journal = "Optics Letters",

issn = "0146-9592",

publisher = "The Optical Society",

number = "7",

}

TY - JOUR

T1 - Toward a miniature endomicroscope

T2 - Pixelationfree and diffraction-limited imaging through a fiber bundle

AU - Kim, Donggyu

AU - Moon, Jungho

AU - Kim, Moonseok

AU - Yang, Taeseok Daniel

AU - Kim, Jaisoon

AU - Chung, Euiheon

AU - Choi, Wonshik

PY - 2014/4/1

Y1 - 2014/4/1

N2 - A fiber bundle is widely used for endoscopic imaging due to its direct image delivery capability. However, there exists an inevitable pixelation artifact, which limits spatial resolution to the diameter of individual fibers. In this Letter, we present a method that can eliminate this artifact and achieve diffraction-limited spatial resolution. We exploited the binary control of a digital micromirror device to measure a transmission matrix of a fiber bundle and to subsequently control mode mixing among individual fibers. In doing so, we achieved a 22 kHz scanning rate of a diffraction-limited focused spot and obtained fluorescence endoscope imaging (58 μm × 58 μm) with near video-rate (10.3 Hz) acquisition. Our study lays a foundation for developing an ultrathin and high-resolution microendoscope.

AB - A fiber bundle is widely used for endoscopic imaging due to its direct image delivery capability. However, there exists an inevitable pixelation artifact, which limits spatial resolution to the diameter of individual fibers. In this Letter, we present a method that can eliminate this artifact and achieve diffraction-limited spatial resolution. We exploited the binary control of a digital micromirror device to measure a transmission matrix of a fiber bundle and to subsequently control mode mixing among individual fibers. In doing so, we achieved a 22 kHz scanning rate of a diffraction-limited focused spot and obtained fluorescence endoscope imaging (58 μm × 58 μm) with near video-rate (10.3 Hz) acquisition. Our study lays a foundation for developing an ultrathin and high-resolution microendoscope.

UR - http://www.scopus.com/inward/record.url?scp=84897985063&partnerID=8YFLogxK

U2 - 10.1364/OL.39.001921

DO - 10.1364/OL.39.001921

M3 - Article

C2 - 24686639

AN - SCOPUS:84897985063

SN - 0146-9592

VL - 39

SP - 1921

EP - 1924

JO - Optics Letters

JF - Optics Letters

IS - 7

ER -

Toward a miniature endomicroscope: Pixelationfree and diffraction-limited imaging through a fiber bundle

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this