Discretization of Annular-Ring Diffraction Pattern for Large-Scale Photonics Beamforming

Posted by Caltech

Kavli Affiliate: Ali Hajimiri | First 5 Authors: Aroutin Khachaturian, Reza Fatemi, Artsroun Darbinian, Ali Hajimiri, | Summary: A solid-state active beamformer based on the annular-ring diffraction pattern is proposed for an integrated photonic platform. Such a circularly symmetric annular-ring aperture achieves radiating element limited FOV. Furthermore, it is demonstrated that a multi-annular-ring aperture with […]


Continue.. Discretization of Annular-Ring Diffraction Pattern for Large-Scale Photonics Beamforming

Electrical spectroscopy of the spin-wave dispersion and bistability in gallium-doped yttrium iron garnet

Posted by klaurent Delft

Kavli Affiliate: Toeno Van Der Sar | First 5 Authors: Joris J. Carmiggelt, Olaf C. Dreijer, Carsten Dubs, Oleksii Surzhenko, Toeno van der Sar | Summary: Yttrium iron garnet (YIG) is a magnetic insulator with record-low damping, allowing spin-wave transport over macroscopic distances. Doping YIG with gallium ions greatly reduces the demagnetizing field and introduces […]


Continue.. Electrical spectroscopy of the spin-wave dispersion and bistability in gallium-doped yttrium iron garnet

Evaluating and Enhancing Candidate Clocking Systems for CHIME/FRB VLBI Outriggers

Posted by klaurent MIT

Kavli Affiliate: Kiyoshi Masui | First 5 Authors: Savannah Cary, Juan Mena-Parra, Calvin Leung, Kiyoshi Masui, J. F. Kaczmarek | Summary: As the Canadian Hydrogen Intensity Mapping Experiment (CHIME) has become the leading instrument for detecting Fast Radio Bursts (FRBs), CHIME/FRB Outriggers will use very-long-baseline interferometry (VLBI) to localize FRBs with milliarcsecond precision. The CHIME […]


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Accretion Disk Sizes from Continuum Reverberation Mapping of AGN Selected from the ZTF Survey

Posted by klaurent Peking

Kavli Affiliate: Luis C. Ho | First 5 Authors: Vivek Kumar Jha, Ravi Joshi, Hum Chand, Xue-Bing Wu, Luis C. Ho | Summary: We present the accretion disk size estimates for a sample of 19 active galactic nuclei (AGN) using the optical $g$, $r$, and $i$ band light curves obtained from the Zwicky Transient Facility […]


Continue.. Accretion Disk Sizes from Continuum Reverberation Mapping of AGN Selected from the ZTF Survey