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 …

Optical sensors are widely used for refractive index measurement in chemical, biomedical,
and food processing industries. Due to specific field distribution of the resonances, optical …

The discovery and continued development of the laser has revolutionized both science and
industry. The advent of miniaturized, semiconductor lasers has made this technology an …

Optical microresonators 1, which confine light within a small cavity, are widely exploited for
various applications ranging from the realization of lasers 2 and nonlinear devices 3, 4, 5 to …

This review provides an insight into the recent developments of photonic crystal (PhC)-
based devices for sensing and imaging, with a particular emphasis on biosensors. We focus …

Optical microscopes and optical tweezers, which were invented to image and manipulate
microscale objects, have revolutionized cellular and molecular biology. However, the optical …

We report on a laser that is fully embedded within a single live cell. By harnessing natural
endocytosis of the cell, we introduce a fluorescent whispering gallery mode (WGM) …

Nanophotonic device building blocks, such as optical nano/microcavities and plasmonic
nanostructures, lie at the forefront of sensing and spectrometry of trace biological and …

We demonstrate a method for efficient coupling of guided light from a single-mode optical
fiber to nanophotonic devices. Our approach makes use of single-sided conical tapered …

Molecular dyes, plasmonic nanoparticles and colloidal quantum dots are widely used in
biomedical optics. Their operation is usually governed by spontaneous processes, which …