Fluorescent and lasing whispering gallery mode microresonators for sensing applications

T Reynolds, N Riesen, A Meldrum… - Laser & Photonics …, 2017 - Wiley Online Library
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 …

Laser sources based on rare-earth ion doped tellurite glass fibers and microspheres

EA Anashkina - Fibers, 2020 - mdpi.com
In recent years, huge progress has been made in the development of rare-earth ion doped
tellurite glass laser sources, ranging from watt-and multiwatt-level fiber lasers to nanowatt …

Laser-assisted morphing of complex three dimensional objects

J Drs, T Kishi, Y Bellouard - Optics express, 2015 - opg.optica.org
Morphing refers to the smooth transition from a specific shape into another one, in which the
initial and final shapes can be significantly different. A typical illustration is to turn a cube into …

Quasi-single mode laser output from a terrace structure added on a Nd3+-doped tellurite-glass microsphere prepared using localized laser heating

T Kishi, T Kumagai, S Shibuya, F Prudenzano… - Optics …, 2015 - opg.optica.org
A Nd^ 3+-doped tellurite-glass terrace microsphere was fabricated, and its laser
characteristics using free-space pumping were investigated. A localized laser heating …

Glass microspheres for optics

T Yano, T Kishi, T Kumagai - International Journal of Applied …, 2015 - Wiley Online Library
Preparation and application of glass spheres as resonators are discussed. Surface‐tension
mold (StM) and localized‐laser heating (LLH) techniques have been developed to fabricate …

New spherical optical cavities with non-degenerated whispering gallery modes

T Kumagai, G Palma, F Prudenzano… - … , and Beam Control …, 2017 - spiedigitallibrary.org
New spherical resonators with internal defects are introduced to show anomalous
whispering gallery modes (WGMs). The defect induces a symmetry breaking spherical cavity …

On-chip fabrication of micrometer-size super-hemispherical and spherical optical devices from molten glass droplets

T Kishi - Journal of the Ceramic Society of Japan, 2018 - jstage.jst.go.jp
Inorganic glass materials have been widely used for optic and photonic applications not only
due to their excellent optical properties, such as a wide optical window, various refractive …

Non-traditional whispering gallery modes inside microspheres visualized with Fourier analysis

L Chang, F Timmermans, C Otto - Optics Express, 2017 - opg.optica.org
Non-traditional whispering gallery modes are studied in a glass microsphere. Geometrical
ray tracing is used to explain and calculate these modes. Thermal emission and Raman …

Glass Microspheres with Add-on Structures for Optical Resonators

T Kishi, T Kumagai, H Tang, S Murai… - 2020 22nd …, 2020 - ieeexplore.ieee.org
Tellurite glass microspheres having whispering gallery modes (WGMs) were fabricated on a
substrate by using a localized-laser heating technique, and nano-or micro-structures were …

Applications of Glass Micro-and Nanospheres

GC Righini, F Prudenzano - Glass Micro-and Nanospheres …, 2019 - api.taylorfrancis.com
The fundamental properties of glass microspherical whisperinggallery mode resonators
(WGMRs) and their applications to sensing, frequency conversion, and hybrid optical …