3D characterization of the forces in optical traps based on counter-propagating beams shaped by a spatial light modulator

2010 ◽  
Author(s):  
Martin V. Kristensen ◽  
Thue B. Lindballe ◽  
Anton P. Kylling ◽  
Darwin Z. Palima ◽  
Jesper Glückstad ◽  
...  
Keyword(s):  
Spatial Light Modulator ◽  
Optical Traps ◽  
Light Modulator

Optimal trap velocity in a dynamic holographic optical trap using a nematic liquid crystal spatial light modulator

2022 ◽  
Author(s):  
Karuna Sindhu Malik ◽  
Bosanta Ranjan Boruah
Keyword(s):  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Spatial Light Modulator ◽  
Optical Trap ◽  
Optical Element ◽  
Optical Traps ◽  
Light Modulator ◽  
Step Size ◽  
Microscopic Object ◽  
Optimal Velocity

Abstract A dynamic holographic optical trap uses a dynamic diffractive optical element such as a liquid crystal spatial light modulator to realize one or more optical traps with independent controls. Such holographic optical traps provide a number of flexibilities and conveniences useful in various applications. One key requirement for such a trap is the ability to move the trapped microscopic object from one point to the other with the optimal velocity. In this paper we develop a nematic liquid crystal spatial light modulator based holographic optical trap and experimentally investigate the optimal velocity feasible for trapped beads of different sizes, in such a trap. Our results show that the achievable velocity of the trapped bead is a function of size of the bead, step size, interval between two steps and power carried by the laser beam. We observe that the refresh rate of a nematic liquid crystal spatial light modulator is sufficient to achieve an optimal velocity approaching the theoretical limit in the respective holographic trap for beads with radius larger than the wavelength of light.

scholarly journals Characterization of a high efficiency, ultrashort pulse shaper incorporating a reflective 4096-element spatial light modulator

2007 ◽  
Vol 278 (2) ◽  
pp. 368-376 ◽  
Author(s):  
Jeffrey J. Field ◽  
Thomas A. Planchon ◽  
Wafa Amir ◽  
Charles G. Durfee ◽  
Jeff A. Squier
Keyword(s):  
Ultrashort Pulse ◽  
Spatial Light Modulator ◽  
High Efficiency ◽  
Pulse Shaper ◽  
Light Modulator

Design and characterization of a liquid-crystal spatial light modulator for a polarization-insensitive optical space switch

1998 ◽  
Vol 37 (23) ◽  
pp. 5461 ◽  
Author(s):  
Patrick Berthelé ◽  
Bruno Fracasso ◽  
Jean-Louis de Bougrenet de la Tocnaye
Keyword(s):  
Liquid Crystal ◽  
Spatial Light Modulator ◽  
Light Modulator ◽  
Polarization Insensitive

Characterization of a spatial light modulator and its application in phase retrieval

2009 ◽  
Vol 48 (20) ◽  
pp. 4003 ◽  
Author(s):  
C. Kohler ◽  
F. Zhang ◽  
Wolfgang Osten
Keyword(s):  
Spatial Light Modulator ◽  
Phase Retrieval ◽  
Light Modulator

scholarly journals Heralded Generation of Vectorially Structured Photons With a High Purity

2021 ◽  
Vol 9 ◽  
Author(s):  
Hai-Jun Wu ◽  
Bing-Shi Yu ◽  
Zhi-Han Zhu ◽  
Carmelo Rosales-Guzmán ◽  
Zhi-Yuan Zhou ◽  
...  
Keyword(s):  
High Purity ◽  
Spatial Light Modulator ◽  
Single Photons ◽  
Spin Orbit ◽  
Light Modulator ◽  
Spatial Modes ◽  
Important Approach ◽  
Photonic States ◽  
Quantum Optical

Engineering vector spatial modes of photons is an important approach for manipulating high-dimension photonic states in various quantum optical experiments. In this work, we demonstrate the generation of heralded single photons with well-defined vector spatial modes by using a self-stable polarizing interferometer comprising a spatial light modulator. Specifically, it is shown that, by carefully tailoring and compensating the spatial and temporal amplitudes of manipulated photons, one can exactly convert ultrafast single photons into desired spin-orbit states with an extremely high purity. This compact and robust device provides a versatile way for not only the generation, but also the manipulation and characterization of arbitrary photonic spin-orbit states.

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