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Convolutional and fourier neural networks for speckle denoising of wrapped phase in digital holographic interferometry
Convolutional and fourier neural networks for speckle denoising of wrapped phase in digital holographic interferometry
Owing to the unique non-Gaussian statistics and non-stationary properties, speckle denoising in digital holographic interf...
A novel PAPR reduction scheme based on nonlinear real-valued support vector regression for CO-OFDM systems
A novel PAPR reduction scheme based on nonlinear real-valued support vector regression for CO-OFDM systems
Coherent optical orthogonal frequency division multiplexing (CO-OFDM) systems suffer from the high peak-to-average ratio (...
Quantum convolutional neural network based on variational quantum circuits
Quantum convolutional neural network based on variational quantum circuits
KeywordsQuantum convolutional neural networkPure variational quantum circuitsTree-structured hybrid amplitude encodingImag...
Tunable ultra-wideband graphene metasurface absorber: A mode merger design approach for terahertz applications
Tunable ultra-wideband graphene metasurface absorber: A mode merger design approach for terahertz applications
This paper presents a systematic approach for designing an ultra-wideband (UWB) absorber for terahertz (THz) applications....
Synchronization transmission of laser signals between networks with arbitrary topology within a finite time based on linear coupling strategy
Synchronization transmission of laser signals between networks with arbitrary topology within a finite time based on linear coupling strategy
Two complex networks are constituted by the single-ring erbium-doped fiber lasers (SREDFLs), and the scheme of synchroniza...
Enhancing wireless optical communication through multi-beam scanning and bandwidth optimization using an optical phased array
Enhancing wireless optical communication through multi-beam scanning and bandwidth optimization using an optical phased array
This study presents a novel wireless optical communication method based on an Optical Phased Array (OPA), where real-time ...
Analytical analysis of the beam propagation factor of elegant Hermite-Gaussian and elegant Laguerre-Gaussian beams with astigmatism
Analytical analysis of the beam propagation factor of elegant Hermite-Gaussian and elegant Laguerre-Gaussian beams with astigmatism
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Sandwiched hybrid waveguide platform for integrated photonics application
Sandwiched hybrid waveguide platform for integrated photonics application
We propose and demonstrate a hybrid waveguide platform using layered amorphous silicon and silicon nitride. The waveguide ...
Solitons in birefringent optical fibers and polarization mode dispersion
Solitons in birefringent optical fibers and polarization mode dispersion
The early work on solitons in optical fibers was all done using single-mode fibers, and these fibers remain important for ...
Combining laser speckle imaging and spatially modulated visible illumination to study the effect of anesthetic drugs on the optical and physiological parameters of brain As value is given in the plot
Combining laser speckle imaging and spatially modulated visible illumination to study the effect of anesthetic drugs on the optical and physiological parameters of brain As value is given in the plot
This work employs an integrated optical imaging system to evaluate the effect of anesthetic drugs on several brain paramet...
Femtosecond mode-locked 1.5 μm fiber laser based on PEDOT: PSS as saturable absorber
Femtosecond mode-locked 1.5 μm fiber laser based on PEDOT: PSS as saturable absorber
We have successfully demonstrated the soliton mode-locked pulse generation in a 77 m long erbium-doped fiber laser (EDFL) ...
Multifunctional active terahertz metasurface with electromagnetically induced transparency, perfect absorption, and circular dichroism
Multifunctional active terahertz metasurface with electromagnetically induced transparency, perfect absorption, and circular dichroism
Navigated by the continued demand for design integration and miniaturization, incorporating multiple diversified operation...
Secure FSO communication based on optical frequency-hopping technology using delay interferometers
Secure FSO communication based on optical frequency-hopping technology using delay interferometers
—A novel optical frequency-hopping (OFH) scheme using optical delay interferometers (DI) is proposed and demonstrated for ...
Terahertz narrow bandpass filters based on double-layer metallic woven meshes with engineered Fabry-Perot cavities
Terahertz narrow bandpass filters based on double-layer metallic woven meshes with engineered Fabry-Perot cavities
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Integration of orthogonal Fourier profilometry with blood flow mapping for 3D fingertip biometric authentication
Integration of orthogonal Fourier profilometry with blood flow mapping for 3D fingertip biometric authentication
We present herein the combination of Fourier transform profilometry based orthogonal projection with a laser speckle imagi...
Generation of oblique Airy-OAM beam using reflective metasurface
Generation of oblique Airy-OAM beam using reflective metasurface
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Microwave photonic multi-frequency reconfigurable PSK/ASK/FSK formats modulation signals generation
Microwave photonic multi-frequency reconfigurable PSK/ASK/FSK formats modulation signals generation
We report a novel photonic approach to generate reconfigurable multi-frequency multiple binary modulation formats microwav...
Research on full duplex FSO access system with hybrid 16PSK/256QAM-OFDM downlink and duobinary uplink signals
Research on full duplex FSO access system with hybrid 16PSK/256QAM-OFDM downlink and duobinary uplink signals
a 100Gbit/s novel full duplex free space optical (FSO) access system scheme is proposed and demonstrated. Using the downli...
Describing two-mode squeezed-light experiments without two-mode entanglement or squeezing
Describing two-mode squeezed-light experiments without two-mode entanglement or squeezing
In a recent work (Calixto and Saldanha, 2020) we have shown that experiments that produce and characterize single-mode lig...
Investigation of high beam quality methane Raman laser
Investigation of high beam quality methane Raman laser
KeywordsStimulated Raman scattering (SRS)Backward stimulated Raman scattering (BSRS)Backward stimulated Raman amplificatio...
Switchable optical differentiator using Fano resonance metasurface
Switchable optical differentiator using Fano resonance metasurface
Optical differentiation plays a pivotal role in analog computing and image processing, owing to its faster operating speed...
All-dielectric asymmetric planar metasurface based dual-parametric sensor
All-dielectric asymmetric planar metasurface based dual-parametric sensor
All-dielectric metasurfaces are a rapidly growing area of research because they have lower ohmic losses and sharper resona...
Study of flexible metasurface with gold rod resonators on ploymide substrate in terahertz waveband
Study of flexible metasurface with gold rod resonators on ploymide substrate in terahertz waveband
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Realization of Tristate Pauli-X, Y and Z gates on photonic crystal using wavelength encoding
Realization of Tristate Pauli-X, Y and Z gates on photonic crystal using wavelength encoding
Pauli gates using phase encoding technique are well-known in quantum optical computing. In this paper, all-optical Tristat...
Tunable multiband THz perfect absorber due to the strong coupling of distributed Bragg reflector cavity mode and Tamm plasma polaritons modes based on MoS2 and graphene
Tunable multiband THz perfect absorber due to the strong coupling of distributed Bragg reflector cavity mode and Tamm plasma polaritons modes based on MoS2 and graphene
In this work, we propose a multiband terahertz perfect absorber by combining a distributed Bragg reflector (DBR) cavity wi...
A bi-tunable polarization-independent triple-band metamaterial terahertz absorber with high refractive index sensitivity based on vanadium dioxide and bulk Dirac semimetal
A bi-tunable polarization-independent triple-band metamaterial terahertz absorber with high refractive index sensitivity based on vanadium dioxide and bulk Dirac semimetal
We have proposed a novel terahertz metamaterial absorber based on the combination of vanadium dioxide and Dirac semimetal,...
3D image steganography using cellular automata transform and depth estimation network
3D image steganography using cellular automata transform and depth estimation network
Traditional 3D image steganography is cumbersome and difficult owing to the special structure of 3D image, imposing a prac...
Broadband composite nonreciprocal polarization wave plates and optical isolators
Broadband composite nonreciprocal polarization wave plates and optical isolators
For decades, reciprocal and broadband (achromatic) polarization retarders have been a topic of intense attention in optics...
Hybrid FSO/RF system over proposed random dust attenuation model based on real-time data combined with G–G atmospheric turbulence
Hybrid FSO/RF system over proposed random dust attenuation model based on real-time data combined with G–G atmospheric turbulence
One of the biggest issues in the 5G cellular network is the connection of its extremely dense traffic cells to the core ne...
Twisted polarization domains and their dynamics
Twisted polarization domains and their dynamics
In recent years, the controlled manipulation of light has garnered significant attention in the field of optics [1]. Struc...
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