Optics offers unique opportunities for reducing energy in information processing and
communications while simultaneously resolving the problem of interconnect bandwidth …

Universal multiport interferometers, which can be programmed to implement any linear
transformation between multiple channels, are emerging as a powerful tool for both classical …

Propagation of light beams through scattering or multimode systems may lead to the
randomization of the spatial coherence of the light. Although information is not lost, its …

We present a silicon implementation of a 4× 4-port universal linear optical circuit. Instead of
predefining the exact functionality of a photonic circuit at design time, we demonstrate a …

We derive four laws relating the absorptivity and emissivity of thermal emitters. Unlike the
original Kirchhoff radiation law derivations, these derivations include diffraction, and so are …

The majority of optical fiber technology developments in the applied sciences have arisen
from developments in telecommunications. However, the photonic lantern is one of several …

Spatial division multiplexing in multi-mode fibers allows to largely enhance transmission
capacity compared to single-mode links. Photonic integrated circuits can provide solutions …

An integrated optical unitary converter (OUC), which can realize arbitrary N× N unitary
transformation on chip, is promising for widespread applications in various areas, such as …

Reconfigurable unitary optical mode converters that can convert multiple orthogonal spatial
modes into different orthogonal modes without fundamental optical loss are important for …

Sudden environmental effects, such as mechanical vibration, wind, and lightning, impart
microsecond-timescale changes to the transmission matrix of multimode optical fibers. We …