Real-time processor for stellar speckle interferometry using microchannel spatial light modulator

1990 ◽  
Author(s):  
Junji Ohtsubo ◽  
Takeshi Utakouji ◽  
Tamiki Takemori ◽  
Katsuyoshi Fujita ◽  
Syuzo Isobe
Keyword(s):  
Real Time ◽  
Spatial Light Modulator ◽  
Speckle Interferometry ◽  
Light Modulator ◽  
Stellar Speckle Interferometry

Study on real-time images compounded using spatial light modulator

2007 ◽  
Author(s):  
Jin Xu ◽  
Zhebo Chen ◽  
Xuxiang Ni ◽  
Zukang Lu
Keyword(s):  
Real Time ◽  
Spatial Light Modulator ◽  
Light Modulator

Pseudo-Color Coded Optical System Based on the Spatial Light Modulator and Charge-Coupled Device

2012 ◽  
Author(s):  
S. N. Zhao ◽  
H. Chang ◽  
J. Wei ◽  
Z. Wei
Keyword(s):  
Real Time ◽  
Optical System ◽  
Spatial Light Modulator ◽  
Processing System ◽  
Optical Processing ◽  
Gray Scale ◽  
Light Modulator ◽  
Time Modulation ◽  
Gray Scale Image ◽  
Pseudo Color

A new pseudo-color coded optical system based on the liquid crystal spatial light modulator (LC-SLM) and a digital camera (CCD) is proposed. The SLM is used to replace the holographic grating with gray-scale image information, a gray-scale image in real-time modulation methods is proposed by synthesizing phase hologram and Ronchi grating, combined with the 4f coherent optical processing system and spatial filtering. For the high resolution gray image processed with existing digital pseudo-color method, the color sensitivity is low, algorithm is very complex. For traditional optical pseudo-color method, the gray scale image needs chemical pretreatment. The process is complex and time-consuming, and the real-time modulation could not be achieved. Our new method has enhanced the flexibility and adaptability of the optical pseudo-color, and give full play to the high sensitivity, high-capacity, rich colors and other features of the optical processing mode. At the same time, it overcomes the disadvantages of pure optical system which could not perform real-time processing. Therefore, it can be widely used in the field of remote sensing, biomedical, environmental monitoring, public security and criminal investigation, etc.

Optical 3D Manipulation and Observation in Real-Time

2006 ◽  
Vol 18 (6) ◽  
pp. 692-697 ◽  
Author(s):  
Jesper Glückstad ◽  
◽  
Peter John Rodrigo ◽  
Ivan Perch-Nielsen
Keyword(s):  
Real Time ◽  
Phase Contrast ◽  
Spatial Light Modulator ◽  
Laser Light ◽  
National Laboratory ◽  
Three Dimensional ◽  
Living Cells ◽  
Promising Technique ◽  
Light Modulator ◽  
3D Manipulation

Three-dimensional light structures can be created by modulating the spatial phase and polarization properties of the laser light. A particularly promising technique is the Generalized Phase Contrast (GPC) method invented and patented at Risø National Laboratory. Based on the combination of programmable spatial light modulator devices and an advanced graphical user-interface the GPC method enables real-time, interactive and arbitrary control over the dynamics and geometry of synthesized light patterns. Recent experiments have shown that GPC-driven micro-manipulation provides a unique technology platform for fully user-guided assembly of a plurality of particles in a plane, control of particle stacking along the beam axis, manipulation of multiple hollow beads, and the organization of living cells into three-dimensional colloidal structures. These demonstrations illustrate that GPC-driven micro-manipulation can be utilized not only for the improved synthesis of functional microstructures but also for non-contact and parallel actuation crucial for sophisticated opto- and micro-fluidic based lab-on-a-chip systems.

Real-time phase measurement and correction of dynamic multimode beam using a single spatial light modulator

2020 ◽  
Vol 18 (1) ◽  
pp. 011404
Author(s):  
Kun Xie ◽  
Wenguang Liu ◽  
Qiong Zhou ◽  
Zongfu Jiang ◽  
Fengjie Xi ◽  
...  
Keyword(s):  
Real Time ◽  
Spatial Light Modulator ◽  
Phase Measurement ◽  
Light Modulator

Real-time electron-holographic interference microscopy with a liquid-crystal spatial light modulator

1993 ◽  
Vol 18 (22) ◽  
pp. 1887 ◽  
Author(s):  
Jun Chen ◽  
Tsukasa Hirayama ◽  
Guanming Lai ◽  
Takayoshi Tanji ◽  
Kazuo Ishizuka ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Real Time ◽  
Spatial Light Modulator ◽  
Interference Microscopy ◽  
Light Modulator

Real time optical correlator architectures using a deformable mirror spatial light modulator

1989 ◽  
Vol 28 (22) ◽  
pp. 4853 ◽  
Author(s):  
Tracy D. Hudson ◽  
David W. Trivett ◽  
Don A. Gregory ◽  
James C. Kirsch
Keyword(s):  
Real Time ◽  
Spatial Light Modulator ◽  
Deformable Mirror ◽  
Light Modulator ◽  
Optical Correlator

Real-time Reconstruction of Scanned Optical Holograms Using an Electron Beam Addressed Spatial Light Modulator

1992 ◽  
Vol 39 (1) ◽  
pp. 63-80 ◽  
Author(s):  
Bradley D. Duncan ◽  
Ting-Chung Poon ◽  
Ming Hsien Wu ◽  
K. Shinoda ◽  
Y. Suzuki
Keyword(s):  
Electron Beam ◽  
Real Time ◽  
Spatial Light Modulator ◽  
Light Modulator
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