Controlling light penetration depth to amplify the gain in ultra-fast silicon APDs and SPADs using photon-trapping nanostructures

A Ahamed, C Bartolo-Perez, AS Mayet… - … and Devices 2021, 2021 - spiedigitallibrary.org
The gain in Avalanche Photodiodes (APDs) and Single Photon Avalanche Diodes (SPADs)
is dependent on the probability of photo-generated carriers to trigger an avalanche process …

Optimizing the light penetration depth in APDs and SPADs for high gain-bandwidth and ultra-wide spectral response

A Ahamed, C Bartolo-Perez, AS Mayet… - … Sensing and Nano …, 2022 - spiedigitallibrary.org
Controlling light penetration depth in Avalanche Photodiodes (APDs) and Single Photon
Avalanche Diodes (SPADs) play a major role in achieving high multiplication gain by …

Nonlocal optoelectronic detection of the orbital angular momentum of light

JZ Ji, W Liu, S Krylyuk, X Fan, Z Zhang… - … and Devices 2021, 2021 - spiedigitallibrary.org
A Weyl semimetal carries topological charges at the Weyl nodes; a light beam can also carry
a topological charge, when it has an orbital angular momentum (OAM). Recently there has …