Results 11 to 20 of about 1,201,915 (262)
Review of biosensing with whispering-gallery mode lasers [PDF]
Light: Science & Applications, 2021 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 suitable for biosensing.
N. Toropov +5 more
semanticscholar +7 more sources
Whispering Gallery‐Mode Microdroplet Tensiometry [PDF]
Advanced Photonics Research, 2021 Droplets are ideally suited to support high‐Q‐factor whispering gallery modes (WGMs) due to their perfectly smooth surface. WGMs enable extremely precise measurements of the droplet properties such as size and shape.
Gregor Pirnat, Matjaž Humar
doaj +3 more sources
Single-molecule optofluidic microsensor with interface whispering gallery modes. [PDF]
Proc Natl Acad Sci U S A, 2022 Significance Optical microresonators have emerged as promising platforms for label-free detection of molecules. However, approaching optimum sensitivity is hindered due to the weak tail of evanescent fields.
Yu XC +6 more
europepmc +2 more sources
Coexistence of electron whispering-gallery modes and atomic collapse states in graphene/WSe2 heterostructure quantum dots. [PDF]
Nat Commun, 2022 The relativistic massless charge carriers with a Fermi velocity of about c/300 in graphene enable us to realize two distinct types of resonances (here, c is the speed of light in vacuum).
Zheng Q, Zhuang YC, Sun QF, He L.
europepmc +3 more sources
Whispering gallery modes in coated silica microspheres
SPIE Proceedings, 2012 Silica microspheres were made by melting the tip of a standard telecom fiber and were coated with a 70SiO2 - 30 HfO2 sol-gel derived glass activated by 0.3 mol % of Er3+ ions. The samples were coated using a dip coating apparatus. The thickness of the coating was estimated to be around 1 μm.
D. Ristic +7 more
openaire +4 more sources
In-Vivo and Ex-Vivo Measurements of Blood Glucose Using Whispering Gallery Modes. [PDF]
Sensors (Basel), 2020 The permittivity of blood glucose is not a strong function of its concentration in microwave or millimeter-wave frequencies. Measuring glucose concentrations remains a challenge, particularly in the presence of interference caused by the ambient leaky ...
Liu LWY +8 more
europepmc +2 more sources
Whispering-gallery-mode sensors for biological and physical sensing [PDF]
, 2021 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 generalized to include light waves that are continuously reflected along the ...
M Humar (21937511) +5 more
core +6 more sources
Whispering Gallery Mode Thermometry [PDF]
Sensors, 2016 This paper presents a state-of-the-art whispering gallery mode (WGM) thermometer system, which could replace platinum resistance thermometers currently used in many industrial applications, thus overcoming some of their well-known limitations and their potential for providing lower measurement uncertainty.
CORBELLINI, SIMONE +4 more
openaire +5 more sources
Coupling interlayer excitons to whispering gallery modes in van der Waals heterostructures. [PDF]
Nano letters (Print), 2020 Van der Waals heterostructures assembled from two-dimensional materials offer a promising platform to engineer structures with desired optoelectronic characteristics. Here we use waveguide-coupled disk resonators made of hexagonal boron nitride (h-BN) to
Ronja Khelifa +8 more
semanticscholar +1 more source
Whispering gallery mode sensors [PDF]
Advances in Optics and Photonics, 2015 We present a comprehensive overview of sensor technology exploiting optical whispering gallery mode (WGM) resonances. After a short introduction we begin by detailing the fundamental principles and theory of WGMs in optical microcavities and the transduction mechanisms frequently employed for sensing purposes.
Foreman, M., Swaim, J., Vollmer, F.
openaire +3 more sources