Whispering gallery modes (WGMs) have been exploited for a broad range of sensing
applications. However, the vast majority of WGM sensors consist of passive resonators …

Whispering gallery mode (WGM) resonators have been exploited as a highly sensitive and
efficient sensing technique in the past few years. They offer the advantages of ultrahigh …

Optical microresonators confine light to a particular microscale trajectory, are exquisitely
sensitive to their microenvironment, and offer convenient readout of their optical properties …

Sensors based on whispering gallery resonators have minute footprints and can push
achievable sensitivities and resolutions to their limits. Here, we use a microbubble …

We propose and demonstrate a whispering gallery mode (WGM) resonance-based
temperature sensor, where the microresonator is made of a DCM (2-[2-[4-(dimethylamino) …

We describe a novel method for making microbottle-shaped lasers by using a CO2 laser to
melt Er: Yb glass onto silica microcapillaries or fibres. This is realised by the fact that the two …

We experimentally demonstrate the high sensitivity of a novel liquid state, whispering-gallery-
mode optical resonator to humidity changes. The optical resonator used consists of a droplet …

Temperature that affects upconversion luminescence (UCL) is important to biological
sensing and magnetic imaging. The temperature-dependent UCL of ZnO: Yb3+/Tm3+ …

We report on the fabrication of an ultrahigh-quality-factor, bottle-like microresonator from a
microcapillary and the realization of Raman lasing therein at pump wavelengths of 1.55 µm …

Multifunctional core/shell type, luminescent-plasmonic material composed of lanthanide
doped microspheres (≈ 50 μm) and gold nanoparticles (Au NPs;≈ 10–20 nm) deposited …