Displaying real 3-D object images using a computer-generated hologram : a thesis presented in partial fulfillment of the requirements for the degree of Master of Science in Computer Science at Massey University [PDF]
, 1998 The magic of an optical hologram that produced by optical system offer us a never ending sense of wonderment. The images reconstructed from an optical hologram exhibit all of the three dimensional properties with full, rich perspective effects, enabling ...
Yuan, Jingzhou
core
Comparison of beam generation techniques using a phase only spatial light modulator [PDF]
, 2016 Whether in art or for QR codes, images have proven to be both powerful and efficient carriers of information. Spatial light modulators allow an unprecedented level of control over the generation of optical fields by using digital holograms.
Arnold, Aidan S. +4 more
core +1 more source
Positive‐Tone Nanolithography of Antimony Trisulfide with Femtosecond Laser Wet‐Etching
Advanced Functional Materials, EarlyView.A butyldithiocarbamic acid (BDCA) etchant is used to fabricate various micro‐ and nanoscale structures on amorphous antimony trisulfide (a‐Sb2S3) thin film via femtosecond laser etching. Numerical analysis and experimental results elucidate the patterning mechanism on gold (reflective) and quartz (transmissive) substrates.
Abhrodeep Dey +12 more
wiley +1 more source
Applied Sciences, 2019 Holographic three-dimensional (3D) displays can reconstruct a whole wavefront of a 3D scene and provide rich depth information for the human eyes. Computer-generated holographic techniques offer an efficient way for reconstructing holograms without ...
Hao Zhang, Liangcai Cao, Guofan Jin
doaj +1 more source
Superpositions of the Orbital Angular Momentum for Applications in Quantum Experiments [PDF]
, 2001 Two different experimental techniques for preparation and analyzing superpositions of the Gaussian and Laguerre-Gassian modes are presented. This is done exploiting an interferometric method on the one hand and using computer generated holograms on the ...
Alipasha Vaziri +6 more
core +3 more sources
Advanced Functional Materials, EarlyView.This study investigates electromechanical PUFs that improve on traditional electric PUFs. The electron transport materials are coated randomly through selective ligand exchange. It produces multiple keys and a key with motion dependent on percolation and strain, and approaches almost ideal inter‐ and intra‐hamming distances.
Seungshin Lim +7 more
wiley +1 more source
Optimization of Phase-Only Computer-Generated Holograms Based on the Gradient Descent Method
Applied Sciences, 2020 The Gerchberg–Saxton (GS) algorithm is a Fourier iterative algorithm that can effectively optimize phase-only computer-generated holograms (CGHs). This study proposes a new optimization technique for phase-only CGHs based on the gradient descent method ...
Shujian Liu, Yasuhiro Takaki
doaj +1 more source
Proximal Algorithms for Discrete-Level Phase-Shifting Mask Design with Application to Optogenetics
Photonics, 2021 This work studies the problem of designing computer-generated holograms using phase-shifting masks limited to represent only a small number of discrete phase levels. This problem has various applications, notably in the emerging field of optogenetics and
Dimitris Ampeliotis +3 more
doaj +1 more source
Computer Generated Holograms [PDF]
, 2010 Práce se pojednává o problematice počítačem generovaných difrakčních struktur, resp. počítačem generovaných hologramů. Vycházíme ze základních principů klasické holografie a v jejich kontextu definujeme syntetickou holografii.
Tvarog, Drahoslav
core
Optically controlled grippers for manipulating micron-sized particles [PDF]
, 2007 We report the development of a joystick controlled gripper for the real-time manipulation of micron-sized objects, driven using holographic optical tweezers (HOTs).
Ashkin A +8 more
core +3 more sources