Results 71 to 80 of about 3,491,555 (340)
Optical communications downlink from a 1.5U Cubesat: OCSD program
International Conference on Space Optics, 2019 In this presentation, we discuss the first demonstration of a lasercom downlink from a LEO 1.5U 2.3 kg CubeSat to our optical ground station at The Aerospace Corporation in El Segundo, CA.
T. Rose +12 more
semanticscholar +1 more source
Designing of Self‐Dispersing Soft Dendritic Microcleaners for Microplastics Capture and Recovery
Advanced Functional Materials, EarlyView.The capture and recovery of microplastics from open aquatic systems is a complex problem, which necessitates nontrivial solutions. The principles of a comprehensive multistage process based on sustainably sourced microcleaners with hierarchical morphology are demonstrated.
Haeleen Hong +3 more
wiley +1 more source
Advanced Functional Materials, EarlyView.EuSc₂Te₄, an antiferromagnetic semiconductor, exhibits a nonlinear Hall effect (NLHE) characterized by quadratic current–voltage behavior. Combined experimental and theoretical studies reveal that this NLHE is linked to its antiferromagnetism and involves contributions from the quantum metric.
Seng Huat Lee +15 more
wiley +1 more source
Complete characterization of ultrashort pulse sources at 1550 nm [PDF]
, 1999 This paper reviews the use of frequency-resolved optical gating (FROG) to characterize mode-locked lasers producing ultrashort pulses suitable for high-capacity optical communications systems at wavelengths around 1550 nm, Second harmonic generation (SHG)
Barry, Liam P. +6 more
core +1 more source
Advanced Functional Materials, EarlyView.This study investigates the role of hole‐blocking layers (HBLs), particularly the combination of two HBLs in photomultiplication‐type organic photodetectors (PM‐OPDs), which results in high gain and record‐fast response. The proposed HBL strategy also allows for the use of photoactive layer with balanced donor–acceptor stoichiometry, which can be ...
Awais Sarwar +7 more
wiley +1 more source
Nanoscale Research Letters, 2019 The control of the polarization states of light plays an important role in modern optical systems. However, traditional polarization manipulating devices often have narrow bandwidth and their large size makes it difficult for them to achieve ...
Yu Wang +6 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong +16 more
wiley +1 more source
High speed short range optical wireless ground-to-train communications [PDF]
, 2010 There is a huge demand for seamless high-speed communications in fast moving trains. People want broadband services while on board as in their home or in the workplace.
Ghassemlooy, Zabih +3 more
core
IEEE Photonics JournalObtaining the light source position from the image is an important solution for achieving link alignment in laser-based underwater wireless optical communication (UWOC) systems.
Bowen Jia +9 more
doaj +1 more source
Numerical Study of an Efficient Solar Absorber Consisting of Metal Nanoparticles
Nanoscale Research Letters, 2017 We propose and theoretically investigate an efficient solar light absorber based on a multilayer structure consisting of tungsten nanoparticle layers and SiO2 layers. According to our calculation, average absorbance over 94% is achieved in the wavelength
Chang Liu +8 more
doaj +1 more source