Results 31 to 40 of about 333 (144)
Low Loss Integrated Photonic Devices and Their Applications in Astrophotonics and Quantum Information [PDF]
, 2021 The silicon nitride (Si3N4) integration platform for photonics is becoming a low-loss and compact platform for various applications such as astrophotonics and quantum information.
XIE, Shengjie
core +1 more source
High-Resolution Arrayed-Waveguide-Gratings in Astronomy: Design and Fabrication Challenges
Photonics, 2017 A comprehensive design of a folded-architecture arrayed-waveguide-grating (AWG)-device, targeted at applications as integrated photonic spectrographs (IPS) in near-infrared astronomy, is presented.
Andreas Stoll +3 more
doaj +1 more source
ULTRA-LOW-LOSS SILICON NITRIDE WAVEGUIDE GRATINGS AND THEIR APPLICATIONS IN ASTROPHOTONICS [PDF]
, 2020 Recent progresses in silicon photonics have enabled many exciting applications in data communications, sensing, quantum information, and astrophotonics.
Hu, Yiwen
core +1 more source
A Nonrepeating Fast Radio Burst in a Dwarf Host Galaxy
The Astrophysical Journal, 2023 We present the discovery of an as yet nonrepeating fast radio burst (FRB), FRB 20210117A, with the Australian Square Kilometre Array Pathfinder (ASKAP), as a part of the Commensal Real-time ASKAP Fast Transients Survey.
Shivani Bhandari +16 more
doaj +1 more source
Nanophotonics, 2013 Multimode optical fibers have been primarily (and almost solely) used as “light pipes” in short distance telecommunications and in remote and astronomical spectroscopy.
Leon-Saval Sergio G. +2 more
doaj +1 more source
The Astrophysical Journal Letters, 2023 The noise in millisecond pulsar (MSP) timing data can include contributions from observing instruments, the interstellar medium, the solar wind, solar system ephemeris errors, and the pulsars themselves.
Daniel J. Reardon +21 more
doaj +1 more source
Evidence for the Disruption of a Planetary System During the Formation of the Helix Nebula
The Astronomical Journal, 2022 The persistence of planetary systems after their host stars evolve into their post-main-sequence phase is poorly constrained by observations. Many young white dwarf systems exhibit infrared excess emission and/or spectral absorption lines associated with
Jonathan P. Marshall +7 more
doaj +1 more source
The Astrophysical Journal Letters, 2023 Long-term observations of synchrotron emission from supernovae (SNe), covering more than a year after the explosion, provide a unique opportunity to study the poorly understood evolution of massive stars in the final millennium of their lives via changes
Keiichi Maeda +6 more
doaj +1 more source
Search for an Isotropic Gravitational-wave Background with the Parkes Pulsar Timing Array
The Astrophysical Journal Letters, 2023 Pulsar timing arrays aim to detect nanohertz-frequency gravitational waves (GWs). A background of GWs modulates pulsar arrival times and manifests as a stochastic process, common to all pulsars, with a signature spatial correlation.
Daniel J. Reardon +28 more
doaj +1 more source
Fabricating waveguide Bragg gratings (WBGs) in bulk materials using ultrashort laser pulses
Nanophotonics, Volume 6, Issue 5, Page 743-763, March 2017., 2017 Abstract Optical waveguide Bragg gratings (WBGs) can be created in transparent materials using femtosecond laser pulses. The technique is conducted without the need for lithography, ion‐beam fabrication methods, or clean room facilities. This paper reviews the field of ultrafast laser‐inscribed WBGs since its inception, with a particular focus on ...
Martin Ams +3 more
wiley +1 more source