Silicon Photonics, the technology where optical devices are fabricated by the mainstream
microelectronic processing technology, was proposed almost 30 years ago. I joined this …

Recent progress in artificial intelligence (AI) has boosted the computational possibilities in
fields in which standard computers are not able to perform adequately. The AI paradigm is to …

Exceptional point and spectral singularity are two types of singularity that are unique to non-
Hermitian systems. Here, we report the high-order spectral singularity as a high-order pole …

The reflectionless coherent light transport in the coupled resonator array is investigated in
the presence of intra-resonator intermodal coupling between the clockwise and …

We develop a general formalism to study laser operation in active microring resonators
supporting two counterpropagating modes. Our formalism is based on the coupled-mode …

Exceptional points, where eigenvalues and eigenvectors coalesce, impact the behavior of
different photonics components that show, eg, enhanced sensing, coherent perfect …

Periodically driven oscillators are commonly described in a frame corotating with the drive
and using the rotating-wave approximation (RWA). This description, however, is known to …

Non-Hermitian physics has found a fertile ground in optics. Recently, the study of mode
coalescence, ie, exceptional points, has led to the discovery of intriguing and …

In this work, we study the eigenvalues and eigenvectors of a taiji microresonator that is
made by a ring cavity with an embedded S-shaped waveguide. Specifically, we …

Optical nonreciprocity and nonreciprocal devices have attracted great research interest in
recent years, due to their important applications in optical communication, information …