Optically induced rotation of a trapped micro-object about an axis perpendicular to the laser beam axis

1998 ◽  
Vol 72 (23) ◽  
pp. 2951-2953 ◽  
Author(s):  
E. Higurashi ◽  
R. Sawada ◽  
T. Ito
Keyword(s):  
Laser Beam ◽  
Beam Axis ◽  
Laser Beam Axis ◽  
Optically Induced

Fabrication of Laser Beam Axis Compensator by Photonic Crystal Technique for Optical Pickup Units

2006 ◽  
Vol 45 (2B) ◽  
pp. 1129-1130
Author(s):  
Atsushi Yamaguchi ◽  
Katsutoshi Hibino ◽  
Yoshihisa Suzuki ◽  
Hitoshi Terasaki ◽  
Shuichi Ichiura
Keyword(s):  
Photonic Crystal ◽  
Laser Beam ◽  
Beam Axis ◽  
Optical Pickup ◽  
Laser Beam Axis

scholarly journals Gynecologic specimen analysis by multiangle light scattering in a flow system.

1976 ◽  
Vol 24 (1) ◽  
pp. 308-314 ◽  
Author(s):  
G C Salzman ◽  
J M Crowell ◽  
K M Hansen ◽  
M Ingram ◽  
P F Mullaney
Keyword(s):  
Light Scattering ◽  
Laser Beam ◽  
Data Processing ◽  
Mammalian Cell ◽  
Laser Light ◽  
Flow System ◽  
Beam Axis ◽  
Processing Techniques ◽  
Preliminary Application ◽  
Laser Beam Axis

A flow-system instrument is described in which the laser light scattered by a mammalian cell is sampled simultaneously at up to 32 angles between 0 degrees and 21 degrees from the laser beam axis as the cell passes through the beam. The scatter pattern for each cell is stored by a computer for later analysis. Various data-processing techniques are discussed. Results of preliminary application of the instrument to the analysis of normal and abnormal gynecologic specimens are presented.

Diffusionless motion of high-absorptivity domains along the laser beam axis

2004 ◽  
Vol 49 (6) ◽  
pp. 745-750
Author(s):  
V. A. Trofimov ◽  
Yu. V. Troshchiev
Keyword(s):  
Laser Beam ◽  
Beam Axis ◽  
Laser Beam Axis

Optically Induced Electrohydrodynamics and Electrokinetic Colloidal Aggregation

2009 ◽  
Author(s):  
Stuart J. Williams ◽  
Aloke Kumar ◽  
Steven T. Wereley
Keyword(s):  
Laser Beam ◽  
Electrode Surface ◽  
Parallel Plate ◽  
Near Infrared ◽  
Lab On A Chip ◽  
Particle Manipulation ◽  
Colloidal Aggregation ◽  
Physical Mechanisms ◽  
Fundamental Physical ◽  
Optically Induced

Recently, we have demonstrated a novel optically induced AC electrokinetic technique that rapidly, continuously and selectively concentrates micro and nanoparticles on an electrode surface [1–3]. This is demonstrated with a highly focused near-infrared (1,064 nm) laser beam applied to parallel plate electrodes separated by 50 μm without the need for photosensitive materials. This dynamic optically-induced technique can be applied towards a variety of lab-on-a-chip applications. This paper will explain the fundamental physical mechanisms involved, necessary in order to replicate and implement this technique. This dynamic fluid and particle manipulation technique may prove valuable to a variety of applications in micro- and nanotechnology.

Laser Beam Induces Reorientation in Nematic Liquid Crystals

2010 ◽  
Vol 428-429 ◽  
pp. 224-227
Author(s):  
I Min Jiang ◽  
Yu Jen Chen ◽  
Wen Chi Hung ◽  
C.T. Kuo ◽  
D.J. Jang ◽  
...  
Keyword(s):  
Phase Transition ◽  
Liquid Crystals ◽  
Laser Beam ◽  
Nematic Liquid Crystals ◽  
Beam Propagation ◽  
Isotropic Phase ◽  
Optical Alignment ◽  
Optically Induced

Nematic liquid crystals (NLCs) can be easily reoriented by the laser beam at the temperature closed to the nematic–isotropic phase transition (TNI). At the temperature closed to TNI, the propagating mode of laser beam and the optically induced phase transition were explored by using a microscopic conoscope technique. This investigation demonstrates the formation of soliton at particular beam propagation modes. The interaction between nematic liquid crystals and the laser beam with different polarizations showed the nonlinearity in optical alignment.

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