Results 11 to 20 of about 701 (192)
Monochrome Image Hologram (MIH)
مجلة بغداد للعلوم, 2008 A new computer-generated optical element called a monochrome image hologram (MIH) is described. A real nonnegative function to represent the transmittance of a synthesized hologram is used.
Baghdad Science Journal
doaj +3 more sources
Semiconductor Physics, Quantum Electronics & Optoelectronics, 2018 Presented in this paper is the technique of formation of required laser intensity distribution on the target with a reduced speckle noise. The method is based on the use of modified Fourier hologram adapted to controlled phase modulators.
A.G. Derzhypolskyi +2 more
doaj +2 more sources
Applied Sciences, 2020 The synthesis of the spherical hologram has been widely investigated in recent years as it enables a large field of view both horizontally and vertically.
Ruoxue Yang +7 more
doaj +2 more sources
Synthesizing computer generated holograms with reduced number of perspective projections [PDF]
Optics Express, 2007 We present an improved method for recording a synthesized Fourier hologram under incoherent white-light illumination. The advantage of the method is that the number of real projections needed for generating the hologram is significantly reduced. The new method, designated as synthetic projection holography, is demonstrated experimentally.
Barak, Katz +2 more
openaire +3 more sources
Pharmaceuticals, 2017 In an ongoing research program for the development of new anti-tuberculosis drugs, we synthesized three series (A, B, and C) of 7-chloro-4-aminoquinolines, which were evaluated in vitro against Mycobacterium tuberculosis (MTB).
Marcelle L. F. Bispo +10 more
doaj +2 more sources
Axial resolution post-processing engineering in Fresnel incoherent correlation holography
JPhys PhotonicsFresnel incoherent correlation holography (FINCH) is a self-interference-based incoherent digital holography method. In FINCH, light from an object point is split into two beams, modulated differently using two lenses with different focal distances, and ...
Shivasubramanian Gopinath +2 more
doaj +2 more sources
Synthesis of holograms received by a communication channel [PDF]
Компьютерная оптика, 2020 A method for the synthesis of holograms that reconstruct a 3D image using two 2D images, including a topographic map of the surface of a 3D object and photographs of the texture of its surface obtained using coherent and incoherent radiation is proposed.
S.A. Shoydin
doaj +1 more source
Experimental Synthesis and Demonstration of the Twisted Laguerre–Gaussian Schell-Mode Beam
Photonics, 2023 The twisted Laguerre–Gaussian Schell-model (TLGSM) beam is a novel type of partially coherent beam embedded with both the second-order twist phase and the classical vortex phase.
Yuning Xia +5 more
doaj +1 more source
Reference Waves in Synthesized Acoustical Holograms [PDF]
The Journal of the Acoustical Society of America, 1967 The reference wave necessary for recording a hologram of an object irradiated with acoustical waves A. Metherell and H. El-Sum, Appl. Phys. Letters (July 1967)] can be provided externally by appropriately controlling the phase between two coherent signals, the one that derives the sound source, and the other which is used as a reference by summing it ...
A. F. Metherell, H. M. A. El-Sum
openaire +1 more source
Light: Advanced Manufacturing, 2022 This paper presents the results of 15 years of studies in the field of terahertz holography at the Novosibirsk free electron laser. They cover two areas: research on obtaining holographic images in the terahertz range and the use of diffractive optical ...
Yulia Choporova +2 more
doaj +1 more source