Quantum information technology based on solid state qubits has created much interest in
converting quantum states from the microwave to the optical domain. Optical photons, unlike …

To observe the dynamical Casimir effect (DCE) induced by a moving mirror is a long-
standing challenge because the mirror velocity needs to approach the speed of light. Here …

Monolithic total internal reflection resonators confine light through traveling-waves that can
feature high quality factors and small mode volumes. Such resonators have emerged as …

Titanium doped sapphire (Ti: sapphire) is a laser gain material with broad gain bandwidth
benefiting from the material stability of sapphire. These favorable characteristics of Ti …

Conventional ultra-high sensitivity detectors in the millimeter-wave range are usually cooled
as their own thermal noise at room temperature would mask the weak received radiation …

Microresonator based dual frequency combs offer an integrated photonic solution to a wide
range of technological challenges, including spectroscopy, range finding, material …

In this work, we discuss and experimentally investigate the whispering gallery modes
(WGMs) in a 500 μm radius silicon sphere. We begin by reviewing the basics of WGM …

Small perturbations in the dielectric environment around resonant dielectric structures
usually lead to a frequency shift of the resonator modes directly proportional to the …

We report the diffraction behavior of harmonic generation in metasurfaces of quasi-bound
states in the continuum (BICs) induced by geometrical perturbations. Conventionally, the …

In this work, we analyze the first whispering gallery mode resonator (WGMR) made from
monocrystalline yttrium lithium fluoride (YLF). The disc-shaped resonator is fabricated using …