Multiple depth multiplexing in off-axis low-coherence interferometric imaging (Conference Presentation)

2018 ◽  
Author(s):  
Lauren Wolbromsky ◽  
Natan T. Shaked
Keyword(s):  
Interferometric Imaging ◽  
Low Coherence

scholarly journals Doubling the field of view in off-axis low-coherence interferometric imaging

2014 ◽  
Vol 3 (3) ◽  
pp. e151-e151 ◽  
Author(s):  
Pinhas Girshovitz ◽  
Natan T Shaked
Keyword(s):  
Field Of View ◽  
Interferometric Imaging ◽  
Low Coherence

scholarly journals Low-Coherence Shearing Interferometry With Constant Off-Axis Angle

2021 ◽  
Vol 8 ◽  
Author(s):  
Rongli Guo ◽  
Itay Barnea ◽  
Natan T. Shaked
Keyword(s):  
Human Sperm ◽  
Optical Path Difference ◽  
Wide Field ◽  
Phase Imaging ◽  
Single Shot ◽  
Interferometric Imaging ◽  
Coherent Noise ◽  
Shearing Interferometry ◽  
Quantitative Phase ◽  
Low Coherence

We present a wide-field interferometric imaging module for biomedical and metrological measurements, employing shearing interferometry with constant off-axis angle (SICA) that can work, for the first time, with a low-coherence light source. In the SICA module, the shearing distance between the interfering beams can be fully controlled without a direct relation with the off-axis angle. In contrast to our previous SICA module, here we use a low-coherence illumination source, providing quantitative phase profiles with significantly lower spatial coherent noise. Although a low-coherence source is used, we obtain off-axis interference on the entire camera sensor, where the optical path difference between the two beams is compensated by using a glass window positioned in the confocal plane. This highly stable, common-path, low-coherence, single-shot interferometric module can be used as an add-on unit to a conventional bright-field microscope illuminated by a low-coherence source. We demonstrate the advantages of using the module by quantitative phase imaging of a polymer bead, fluctuations in a human white blood cell, and dynamics of human sperm cells.

Heterodyne processing scheme for low coherence interferometric sensor systems

1991 ◽  
Vol 138 (6) ◽  
pp. 393
Author(s):  
B.T. Meggitt ◽  
W.J.O. Boyle ◽  
K.T.V. Grattan ◽  
A.E. Baruch ◽  
A.W. Palmer
Keyword(s):  
Sensor Systems ◽  
Processing Scheme ◽  
Low Coherence ◽  
Interferometric Sensor

Earth View-Third Millennium: A student designed 1 ft resolution, interferometric imaging spacecraft

2001 ◽  
Author(s):  
Gabriel Bharadwaj ◽  
Scott Molton ◽  
Ricardo Torres ◽  
John Vesecky ◽  
Nicholas Avlas
Keyword(s):  
Interferometric Imaging ◽  
Third Millennium

scholarly journals Low-coherence photonic method of electrochemical processes monitoring

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Monika Kosowska ◽  
Paweł Jakóbczyk ◽  
Michał Rycewicz ◽  
Alex Vitkin ◽  
Małgorzata Szczerska
Keyword(s):  
Electrochemical Process ◽  
Electrochemical Measurements ◽  
Boron Doped Diamond ◽  
Silica Substrate ◽  
Low Coherence ◽  
Optical Responses ◽  
Boron Doped ◽  
Fabry Perot ◽  
Hybrid Characterization

AbstractWe present an advanced multimodality characterization platform for simultaneous optical and electrochemical measurements of ferrocyanides. Specifically, we combined a fiber-optic Fabry–Perot interferometer with a three-electrode electrochemical setup to demonstrate a proof-of-principle of this hybrid characterization approach, and obtained feasibility data in its monitoring of electrochemical reactions in a boron-doped diamond film deposited on a silica substrate. The film plays the dual role of being the working electrode in the electrochemical reaction, as well as affording the reflectivity to enable the optical interferometry measurements. Optical responses during the redox reactions of the electrochemical process are presented. This work proves that simultaneous opto-electrochemical measurements of liquids are possible.

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