Quasi-needle-like focus synthesized by optical coherence tomography

被引：10

作者：

Bao, Wen ^{[1
]}

Ding, Zhihua ^{[1
]}

Qiu, Jianrong ^{[1
]}

Shen, Yi ^{[1
]}

Li, Peng ^{[1
]}

Chen, Zhiyan ^{[1
]}

机构：

[1] Zhejiang Univ, Coll Opt Sci & Engn, State Key Lab Modern Opt Instrumentat, Hangzhou 310027, Zhejiang, Peoples R China

来源：

OPTICS LETTERS | 2017年 / 42卷 / 07期

基金：

中国国家自然科学基金;

关键词：

SYNTHETIC-APERTURE; DEPTH; RANGE;

D O I：

10.1364/OL.42.001385

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

It is known that lateral resolution and depth of focus (DOF) in an optical imaging system are coupled, and a compromise between them has to be made. In this Letter, we propose to resolve the trade-off between lateral resolution and the DOF by a synthetic effective point spread function in optical path length (OPL) domain. A quasi-needle-like focus is synthesized by optical coherence tomography. We demonstrate that the synthesized quasi-needle-like focus provides a four-fold extension of a conventional DOF, while maintaining a high lateral resolution of 2.5 mu m over a depth range of approximately 240 mu m. The focal range can be further extended with more optical path length coded beams for synthesis involved. (C) 2017 Optical Society of America

引用

页码：1385 / 1388

页数：4

共 18 条

[11] Computed optical interferometric tomography for high-speed volumetric cellular imaging [J].

Liu, Yuan-Zhi ;

Shemonski, Nathan D. ;

Adie, Steven G. ;

Ahmad, Adeel ;

Bower, Andrew J. ;

Carney, P. Scott ;

Boppart, Stephen A. .

BIOMEDICAL OPTICS EXPRESS, 2014, 5 (09) :2988-3000

[12] Ultrathin fiber probes with extended depth of focus for optical coherence tomography [J].

Lorenser, Dirk ;

Yang, Xiaojie ;

Sampson, David D. .

OPTICS LETTERS, 2012, 37 (10) :1616-1618

[13] Focus-extension by depth-encoded synthetic aperture in Optical Coherence Tomography [J].

Mo, Jianhua ;

de Groot, Mattijs ;

de Boer, Johannes F. .

OPTICS EXPRESS, 2013, 21 (08) :10048-10061

[14] Interferometric synthetic aperture microscopy [J].

Ralston, Tyler S. ;

Marks, Daniel L. ;

Carney, P. Scott ;

Boppart, Stephen A. .

NATURE PHYSICS, 2007, 3 (02) :129-134

[15] In vivo endoscopic multi-beam optical coherence tomography [J].

Standish, Beau A. ;

Lee, Kenneth K. C. ;

Mariampillai, Adrian ;

Munce, Nigel R. ;

Leung, Michael K. K. ;

Yang, Victor X. D. ;

Vitkin, I. Alex .

PHYSICS IN MEDICINE AND BIOLOGY, 2010, 55 (03) :615-622

[16] Ultralong-range phase imaging with orthogonal dispersive spectral-domain optical coherence tomography [J].

Wang, Chuan ;

Ding, Zhihua ;

Mei, Shengtao ;

Yu, Hang ;

Hong, Wei ;

Yan, Yangzhi ;

Shen, Weidong .

OPTICS LETTERS, 2012, 37 (21) :4555-4557

[17]

Wilson T., 1984, Theory and Practice of Scanning Optical Microscopy

[18] Micromachined array tip for multifocus fiber-based optical coherence tomography [J].

Yang, VXD ;

Munce, N ;

Pekar, J ;

Gordon, ML ;

Lo, S ;

Marcon, NE ;

Wilson, BC ;

Vitkin, IA .

OPTICS LETTERS, 2004, 29 (15) :1754-1756

← 1 2 →