Selective image extraction by synthesis of the coherence function using two-dimensional optical lock-in amplifier with microchannel spatial light modulator

1996 ◽  
Author(s):  
Zuyuan He ◽  
Toru Okugawa ◽  
Naohisa Mukohzaka ◽  
Kazuo Hotate
Keyword(s):  
Spatial Light Modulator ◽  
Coherence Function ◽  
Two Dimensional ◽  
Light Modulator ◽  
Lock In

Implementation of two-dimensional lock-in detector array using BSO spatial light modulator

1994 ◽  
Vol 1 (2) ◽  
pp. 237-240 ◽  
Author(s):  
Yukihisa Osugi ◽  
Youichi Btou ◽  
Takumi Minemoto
Keyword(s):  
Spatial Light Modulator ◽  
Detector Array ◽  
Two Dimensional ◽  
Light Modulator ◽  
Lock In

scholarly journals Simultaneous Measurement of In-Plane and Out-of-Plane Displacements Using Talbot Fringe Projection

2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Haibin Sun ◽  
Tingting Liu
Keyword(s):  
Spatial Light Modulator ◽  
Optical Path ◽  
Image Correlation ◽  
Optical Measurements ◽  
Fringe Projection ◽  
Two Dimensional ◽  
Projection Technique ◽  
Light Modulator ◽  
Out Of Plane ◽  
Computer Controlled

The fringe projection technique has been widely used in optical measurements. In this paper, we demonstrate a scheme to measure the 3D displacement of a deformed sample using Talbot fringe projection. In this process, we designed a two-dimensional square Talbot hologram. In this approach, we used the basic principle of triangulation, and a computer-controlled liquid crystal spatial light modulator (LC-SLM) was placed in the optical path. The Talbot array hologram was displayed on the LC-SLM screen and projected onto the surface of a sample. Two patterns were recorded: one before and one after deformation. We simultaneously acquired the in-plane and out-of-plane displacements using the digital image correlation (DIC) method. This scheme is simple and easily implemented. Theoretical and experimental results are presented.

Scanning Tunneling Optical Resonance Microscopy (STORM)

2002 ◽  
Vol 738 ◽  
Author(s):  
R.P. Raffaelle ◽  
T. Gennett ◽  
J. E. Lau ◽  
P. Jenkins ◽  
S.L. Castro ◽  
...  
Keyword(s):  
Spatial Light Modulator ◽  
Tunneling Current ◽  
Scanning Tunneling ◽  
X Ray Diffraction ◽  
Light Modulator ◽  
Optical Resonance ◽  
X Ray ◽  
Lock In ◽  
Good Agreement

ABSTRACTThe ability to determine the in-situ optoelectronic behavior of semiconductor materials has become especially important as the size of device architectures is reduced and the development of complex microsystems has increased. Scanning Tunneling Optical Resonance Microscopy or STORM has the ability to interrogate the optical bandgap as a function of position within a semiconductor microstructure. This technique uses a tunable solid-state Ti sapphire laser whose output is “chopped” using a spatial light modulator and is coupled by a fiber optic to a scanning tunneling microscope in order to illuminate the tip-sample junction. The photoenhanced portion of the tunneling current is spectroscopically measured using a lock-in technique. The capabilities of this technique were verified using semiconductor microstructure calibration standards that were grown by organometallic vapor phase epitaxy (OMVPE) at the NASA Glenn Research Center. Bandgaps characterized by STORM measurements were found to be in good agreement with the bulk values determined by transmission spectroscopy, photoluminescence, and with the theoretical values that were based on x-ray diffraction results.

Real-time two-dimensional holographic imaging by using an electron-beam-addressed spatial light modulator

1993 ◽  
Vol 18 (1) ◽  
pp. 63 ◽  
Author(s):  
T.-C. Poon ◽  
M. H. Wu ◽  
K. Shinoda ◽  
Y. Suzuki ◽  
B. W. Schilling
Keyword(s):  
Electron Beam ◽  
Real Time ◽  
Spatial Light Modulator ◽  
Two Dimensional ◽  
Light Modulator ◽  
Holographic Imaging

scholarly journals Tunable Two-Dimensional Patterning of a Semiconducting and Nanometer-Thin C60 Fullerene Film Using a Spatial Light Modulator

2020 ◽  
Vol 3 (6) ◽  
pp. 5463-5472
Author(s):  
Jenny Enevold ◽  
Tobias Dahlberg ◽  
Tim Stangner ◽  
Shi Tang ◽  
E. Mattias Lindh ◽  
...  
Keyword(s):  
Spatial Light Modulator ◽  
C60 Fullerene ◽  
Two Dimensional ◽  
Light Modulator
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