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 Three-Dimensional Object Capturing and Mapping with Optical Correlators

2012 ◽  
Vol 586 ◽  
pp. 374-377
Author(s):  
Zheng Quan He ◽  
Yu Lin Li ◽  
Xiang Sheng Huang ◽  
De Pong Kong ◽  
Min Rui Zhang ◽  
...  
Keyword(s):  
Real Time ◽  
Spatial Light Modulator ◽  
Three Dimensional ◽  
Body Parts ◽  
Light Modulator ◽  
Correlation Algorithm ◽  
New Strategy ◽  
Optical Correlators ◽  
Dimensional Object ◽  
Body Recognition

In this paper a new strategy for real-time three-dimensional object capturing and mapping is proposed by using optical correlators. A spatial light modulator is applied in the new strategy. Owing to the properties of quickly parallel processing of optical correlation algorithm the technique can also implement real time object capturing and track, and, as for human body recognition the gesture of body parts can also be portrayed.

Three-Dimensional Holographic Lithography Using a Spatial Light Modulator

2008 ◽  
Author(s):  
Nathan J. Jenness ◽  
Daniel G. Cole ◽  
Robert L. Clark
Keyword(s):  
Real Time ◽  
Spatial Light Modulator ◽  
Large Scale ◽  
Three Dimensional ◽  
Holographic Lithography ◽  
Layer By Layer ◽  
Direct Write ◽  
Light Modulator ◽  
Experimental Systems ◽  
Mechanical Stage

In this paper we present a lithographic process with the ability to automatically translate and arbitrarily position three-dimensional (3D) computer-generated patterns through the use of phase holograms. This method, dynamic maskless holographic lithography (DMHL), advances current photo-directed patterning and functionalization capabilities by expanding the capability to manipulate light in real-time without the use of expensive fixed masks. The system could be used for large-scale parallel manufacturing over larger areas and for point specific serial fabrication, interrogation, and metrology. The use of coherent illumination allows for the direct creation of 3D patterns of light for lithography as opposed to the mechanical stage, layer-by-layer 3D fabrication approach typical of direct-write systems. Extrinsic control over interfacial properties will provide a method for addressing aqueous phase bionanotechnolgy experimental systems in which detection, separation, transport, and handling are vital.

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

Holographic three-dimensional displays with liquid crystal on silicon spatial light modulator

2004 ◽  
Author(s):  
Aneta Michalkiewicz ◽  
Malgorzata Kujawinska ◽  
Tomasz Kozacki ◽  
Xinghua Wang ◽  
Philip J. Bos
Keyword(s):  
Liquid Crystal ◽  
Spatial Light Modulator ◽  
Three Dimensional ◽  
Light Modulator ◽  
Liquid Crystal On Silicon

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.

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