Results 31 to 40 of about 769 (50)

Information-Rich Multi-Functional OCT for Adult Zebrafish Intra- and Extracranial Imaging

open access: yesBioengineering, 2023
The zebrafish serves as a valuable animal model for both intra- and extracranial research, particularly in relation to the brain and skull. To effectively investigate the development and regeneration of adult zebrafish, a versatile in vivo imaging ...
Di Yang   +3 more
doaj   +1 more source

Broadband saturable absorption in germanene for mode-locked Yb, Er, and Tm fiber lasers

open access: yesNanophotonics, 2022
Passively mode-locked lasers have been widely investigated as one of the effective methods to obtain ultrashort pulses. As an important part of passively mode-locked fiber lasers, the exploration of 2D material-based saturable absorber has become one of ...
Wang Qingbo   +7 more
doaj   +1 more source

Design and Print Terahertz Metamaterials Based on Electrohydrodynamic Jet

open access: yesMicromachines, 2023
Terahertz metamaterials are some of the core components of the new generation of high-frequency optoelectronic devices, which have excellent properties that natural materials do not have. The unit structures are generally much smaller than the wavelength,
Tong Yang, Xinyu Li, Bo Yu, Cheng Gong
doaj   +1 more source

Efficient Multifocal Structured Illumination Microscopy Utilizing a Spatial Light Modulator

open access: yesApplied Sciences, 2020
We demonstrated an efficient system for multifocal structured illumination microscopy (MSIM) utilizing a spatial light modulator (SLM). Nine phase profiles of chessboard phase plates loaded on the SLM in sequence are used to generate nine multifocal ...
Liang Feng   +6 more
doaj   +1 more source

Investigation of Heat Accumulation in Femtosecond Laser Drilling of Carbon Fiber-Reinforced Polymer

open access: yesMicromachines, 2023
Carbon fiber-reinforced polymer (CFRP) has indispensable applications in the aerospace field because of its light weight, corrosion resistance, high specific modulus and high specific strength, but its anisotropy brings great difficulties to precision ...
Yaoyao Li   +3 more
doaj   +1 more source

Planar Hyperspectral Imager With Small Smile and Keystone Based on Two Metasurfaces

open access: yesIEEE Photonics Journal, 2022
Metasurfaces, which are ultrathin planar artificial materials flexibly controlling the phase, amplitude, and polarization of the light, have facilitated the high integration and miniaturization of hyperspectral imaging systems.
Jiadong Zhao   +7 more
doaj   +1 more source

Dual-band wide-angle metamaterial perfect absorber based on the combination of localized surface plasmon resonance and Helmholtz resonance

open access: yesScientific Reports, 2017
In this article, a dual-band wide-angle metamaterial perfect absorber is proposed to achieve absorption at the wavelength where laser radar operates.
Changlei Zhang   +6 more
doaj   +1 more source

Crosstalk-free achromatic full Stokes imaging polarimetry metasurface enabled by polarization-dependent phase optimization

open access: yesOpto-Electronic Advances, 2022
Imaging polarimetry is one of the most widely used analytical technologies for object detection and analysis. To date, most metasurface-based polarimetry techniques are severely limited by narrow operating bandwidths and inevitable crosstalk, leading to ...
Yaxin Zhang   +12 more
doaj   +1 more source

Simultaneous generation of first- to fourth-order OAM modes based on a cascaded preset-twist long-period fiber grating

open access: yesNanophotonics
We propose and demonstrate the simulation and fabrication of an all-fiber orbital angular momentum (OAM) mode converter capable of generating first- to fourth-order modes simultaneously, which is realized by inscribing a cascaded preset-twist long-period
Chang Wenzhe   +6 more
doaj   +1 more source

Broadband and Tunable RCS Reduction using High-order Reflections and Salisbury-type Absorption Mechanisms

open access: yesScientific Reports, 2019
In this paper, a broadband and tunable radar cross section (RCS) reduction structure is proposed by using the hybrid physical mechanism that is based on high-order reflections and Salisbury-type absorption.
Jiakun Song   +6 more
doaj   +1 more source

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