Results 11 to 20 of about 96,571 (279)
Toward a Broadband Astro-comb: Effects of Nonlinear Spectral Broadening in Optical Fibers [PDF]
, 2010 We propose and analyze a new approach to generate a broadband astro-comb by spectral broadening of a narrowband astro-comb inside a highly nonlinear optical fiber.
Braje +15 more
core +2 more sources
Galactic winds and stellar populations in Lyman $\alpha$ emitting galaxies at z ~ 3.1 [PDF]
, 2014 We present a sample of 33 spectroscopically confirmed z ~ 3.1 Ly$\alpha$-emitting galaxies (LAEs) in the Cosmological Evolution Survey (COSMOS) field.
Finkelstein, Steven L. +6 more
core +2 more sources
A single-crystal source of path-polarization entangled photons at non-degenerate wavelengths
, 2008 We demonstrate a bright, narrowband, compact, quasi-phase-matched single-crystal source generating path-polarization-entangled photon pairs at 810 nm and 1550 nm at a maximum rate of 3 Mcounts/(s THz mW) after coupling to single-mode fiber, and with two ...
A. Karlsson +29 more
core +1 more source
Estimating Sparse Signals Using Integrated Wideband Dictionaries
, 2017 In this paper, we introduce a wideband dictionary framework for estimating sparse signals. By formulating integrated dictionary elements spanning bands of the considered parameter space, one may efficiently find and discard large parts of the parameter ...
Butsenko, Maksim +2 more
core +1 more source
International Journal of Hyperconnectivity and the Internet of ThingsNarrowband Internet of things (NBIoT) is a low energy and low resource consuming version of IoT. As its name suggests, it needs a narrow bandwidth for its operations. Its energy consumption is also very low, and thus it is suitable for low energy applications.
Sudhir K. Routray, Sasmita Mohanty
openaire +1 more source
Temporal Quantum-State Tomography of Narrowband Biphotons
, 2014 We describe and demonstrate a quantum state tomography for measuring the complex temporal waveform of narrowband biphotons. Through six sets of two-photon interference measurements projected in different polarization subspaces, we can construct the time ...
Chen, Peng +4 more
core +2 more sources
Electrically Tunable On‐Chip Topological Photonics with Integrated Carbon Nanotubes
Advanced Functional Materials, EarlyView.This work demonstrates electrically tunable on‐chip topological THz devices by integrating 2D carbon nanotube (CNT) sheets with valley‐Hall photonic crystals, enabling broadband transmission modulation (71% modulation depth) and tunable narrowband filtering (0.54 GHz shift) through electrically induced thermal tuning. This advancement paves the way for
Jifan Yin +7 more
wiley +1 more source
Architectures and Key Technical Challenges for 5G Systems Incorporating Satellites [PDF]
, 2018 Satellite Communication systems are a promising solution to extend and complement terrestrial networks in unserved or under-served areas. This aspect is reflected by recent commercial and standardisation endeavours. In particular, 3GPP recently initiated
Alagha, N. +12 more
core +3 more sources
Phase-sensitive narrowband heterodyne holography [PDF]
Applied Optics, 2014 We report on amplitude and phase imaging of out-of-plane sinusoidal surface vibration at nanometer scales with a heterodyne holographic interferometer. The originality of the proposed method is to make use of a multiplexed local oscillator to address several optical sidebands into the temporal bandwidth of a sensor array.
Bruno, Francois +4 more
openaire +3 more sources
Three‐dimensional Antimony Sulfide Based Flat Optics
Advanced Functional Materials, EarlyView.This work presents the development of a grayscale electron beam lithography (g‐EBL) method for fabricating antimony trisulfide (Sb2S3) nanostructures with customizable 3D profiles. The refractive index of g‐EBL patterned Sb2S3 is determined based on the synergy of genetic algorithm and transfer matrix method.
Wei Wang +18 more
wiley +1 more source