The term whispering gallery mode (WGM) was first introduced to describe the curvilinear
propagation of sound waves under a cathedral dome. The physical concept has now been …

The quest towards the integration of ultra-fast, high-precision optical clocks is reflected in the
large number of high-impact papers on the topic published in the last few years. This interest …

The revolutionary 5G cellular systems represent a breakthrough in the communication
network design to provide a single platform for enabling enhanced broadband …

Temperature is one of the most fundamental physical properties to characterize various
physical, chemical, and biological processes. Even a slight change in temperature could …

Lithium niobate (LiNbO3) on insulator (LNOI) is a promising material platform for integrated
photonics due to single crystal LiNbO3 film's wide transparent window, high refractive index …

Exceptional points (EPs) are special spectral degeneracies of non-Hermitian Hamiltonians
that govern the dynamics of open systems. At an EP, two or more eigenvalues, and the …

Measurement of optical and vibrational spectra with high resolution provides a way to
identify chemical species in cluttered environments and is of general importance in many …

An ultrasensitive photonic sensor is vital for sensing matter with absolute specificity. High
specificity terahertz photonic sensors are essential in many fields, including medical …

The absorption of electromagnetic energy by a material is a phenomenon that underlies
many applications, including molecular sensing, photocurrent generation and …

Optical gyroscopes are among the most accurate rotation measuring devices and are widely
used for navigation and accurate pointing. Since the advent of photonic integrated …