Phase Control of Electromagnetically Induced Phase Grating in a Four-Level Inverted Quantum System with Closed-Loop Configuration
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Theoretical Physics"
DOI: 10.1007/s10773-021-04860-7
Abstract: In this paper, we investigated the electromagnetically induced phase grating in a four-level quantum system with closed loop configuration via relative phase between applied fields. We found that the diffraction intensity can be adjusted via… read more here.
Keywords: grating four; phase; induced phase; four level ... See more keywords
Plasmon-induced phase grating via nonlinear modulation
Sign Up to like & getrecommendations! Published in 2018 at "Optics Communications"
DOI: 10.1016/j.optcom.2018.03.055
Abstract: Abstract By studying the linear and nonlinear properties of four-level quantum system near plasmonic nanostructure (PS), it is realized that the diffraction efficiency of weak probe light can be controlled by plasmon induced linear and… read more here.
Keywords: modulation; linear nonlinear; induced phase; plasmon induced ... See more keywords
Hole-Free Phase Plate Imaging of a Phase Grating
Sign Up to like & getrecommendations! Published in 2018 at "Microscopy and Microanalysis"
DOI: 10.1017/s1431927618004968
Abstract: Hole free phase plate (HFPP) imaging provides a convenient way to enhance phase contrast in a TEM [1]. HFPP imaging applications range from biology to magnetic materials, but quantitative image interpretation has not been possible… read more here.
Keywords: hole free; free phase; phase; phase plate ... See more keywords
Angular alignment and fidelity of neutron phase-gratings for improved interferometer fringe visibility
Sign Up to like & getrecommendations! Published in 2019 at "AIP Advances"
DOI: 10.1063/1.5099341
Abstract: The recent development of phase-grating moire neutron interferometry promises a wide range of impactful experiments from dark-field imaging of material microstructure to precise measurements of fundamental constants. However, the contrast of 3% obtained using this… read more here.
Keywords: neutron; phase; phase gratings; diffraction peaks ... See more keywords
Neutron interferometry using a single modulated phase grating
Sign Up to like & getrecommendations! Published in 2022 at "Review of Scientific Instruments"
DOI: 10.1063/5.0106706
Abstract: Neutron grating interferometry provides information on phase and small-angle scatter in addition to attenuation. Previously, phase grating moiré interferometers (PGMI) with two or three phase gratings have been developed. These phase-grating systems use the moiré… read more here.
Keywords: mpg system; modulated phase; phase grating; phase ... See more keywords
Gain-phase grating via double tunneling in quantum dot molecules
Sign Up to like & getrecommendations! Published in 2021 at "Laser Physics Letters"
DOI: 10.1088/1612-202x/ac1743
Abstract: The scheme for gain-phase grating is proposed via double tunneling effect in the quantum dot molecules system with five-level structure, which is formed by two quantum dots due to inter-dot tunneling. Combining the stranding-wave control… read more here.
Keywords: quantum dot; via double; phase grating; double tunneling ... See more keywords
Multiplexing and encryption of images using phase grating and random phase mask
Sign Up to like & getrecommendations! Published in 2020 at "Optical Engineering"
DOI: 10.1117/1.oe.59.3.033105
Abstract: Abstract. Recent developments in the areas of image processing have guided a new paradigm for research work in communication of images over the internet. Hence, secure storage and retrieval of digital images is a demanding… read more here.
Keywords: phase mask; phase grating; random phase; images using ... See more keywords
Polarized induced phase grating in a quantized four-level graphene monolayer system.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.469098
Abstract: We discuss the electromagnetically induced grating (EIG) and electromagnetically induced phase grating (EIPG) in a four-level quantized graphene monolayer system. By using the density matrix technique and perturbation theory, we first obtain the self-Kerr nonlinear… read more here.
Keywords: graphene; system; phase; phase grating ... See more keywords
Dual phase grating based X-ray differential phase contrast imaging with source grating: theory and validation.
Sign Up to like & getrecommendations! Published in 2020 at "Optics express"
DOI: 10.1364/oe.381759
Abstract: In this work, we developed a new theoretical framework using wave optics to explain the working mechanism of the grating based X-ray differential phase contrast imaging (XPCI) interferometer systems consist of more than one phase… read more here.
Keywords: phase; optics; grating based; source grating ... See more keywords
Detailed analysis of the interference patterns measured in lab-based X-ray dual-phase grating interferometry through wave propagation simulation.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.477964
Abstract: In this work, we analyze the interference patterns measured in lab-based dual-phase grating interferometry and for the first time explain the spatial dependencies of the measured interference patterns and the large visibility deviations between the… read more here.
Keywords: grating interferometry; dual phase; interference patterns; phase grating ... See more keywords