Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Autofocusing based on wavelength dependence of diffraction in two-wavelength digital holographic microscopy

Not Accessible

Your library or personal account may give you access

Abstract

An autofocusing method for two-wavelength digital holographic microscopy (TWDHM) based on the wavelength dependence of the diffraction process is proposed. Red and green lights are employed for the illumination of the TWDHM, and the generated holograms are recorded simultaneously by a color CCD camera. Due to the wavelength dependency of the diffraction process, the farther the reconstruction plane is from the image plane, the larger the difference is between the red and green light distributions. Thus, the image plane can be determined by finding the minimum of the variation between the red and green lights on their amplitude distributions. The feasibility of the proposed method is demonstrated by simulation and experiment.

©2012 Optical Society of America

Full Article  |  PDF Article
More Like This
Autofocusing of digital holographic microscopy based on off-axis illuminations

Peng Gao, Baoli Yao, Junwei Min, Rongli Guo, Baiheng Ma, Juanjuan Zheng, Ming Lei, Shaohui Yan, Dan Dan, and Tong Ye
Opt. Lett. 37(17) 3630-3632 (2012)

Structured illumination for resolution enhancement and autofocusing in digital holographic microscopy

Peng Gao, Giancarlo Pedrini, and Wolfgang Osten
Opt. Lett. 38(8) 1328-1330 (2013)

Versatile optimization-based speed-up method for autofocusing in digital holographic microscopy

Julianna Winnik, Damian Suski, Piotr Zdańkowski, Luiza Stanaszek, Vicente Micó, and Maciej Trusiak
Opt. Express 29(21) 33297-33311 (2021)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (2)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved