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 …

Optical microcavities confine light to small volumes by resonant recirculation. Devices based
on optical microcavities are already indispensable for a wide range of applications and …

Lasers are the pillars of modern optics and sensing. Microlasers based on whispering-
gallery modes (WGMs) are miniature in size and have excellent lasing characteristics …

Quantum cascade lasers are compact, electrically pumped light sources in the
technologically important mid-infrared and terahertz region of the electromagnetic spectrum …

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 …

Optical frequency combs,, provide equidistant frequency markers in the infrared, visible and
ultraviolet,, and can be used to link an unknown optical frequency to a radio or microwave …

The circulation of light within dielectric volumes enables storage of optical power near
specific resonant frequencies and is important in a wide range of fields including cavity …

This is a review on theoretical and experimental studies on dielectric microcavities, which
play a significant role in fundamental and applied research. The basic concepts and theories …

As stability and continuous operation are important for almost any use of a microcavity, we
demonstrate here experimentally and theoretically a self-stable equilibrium solution for a …

Reviews the history of optical trap** and manipulation of small-neutral particles, from the
time of its origin in 1970 up to the present. As we shall see, the unique characteristics of this …