TY - JOUR
T1 - Liquid whispering-gallery-mode resonator as a humidity sensor
AU - Labrador-Páez, Lucía
AU - Soler-Carracedo, Kevin
AU - Hernández-Rodríguez, Miguel
AU - Martín, Inocencio R.
AU - Carmon, Tal
AU - Martin, Leopoldo L.
N1 - Publisher Copyright: ©2017 Optical Society of America.
PY - 2017/1/23
Y1 - 2017/1/23
N2 - 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 made of glycerol, a transparent liquid that enables high optical quality factor, doped with fluorescent material. As glycerol is highly hygroscopic, the refractive index and radius of the droplet change with ambient humidity. This produces a shift on the whispering gallery mode's wavelengths, which modulates the emission of the fluorescent material. This device shows an unpreceded sensitivity of 10-3 per relative humidity percent.
AB - 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 made of glycerol, a transparent liquid that enables high optical quality factor, doped with fluorescent material. As glycerol is highly hygroscopic, the refractive index and radius of the droplet change with ambient humidity. This produces a shift on the whispering gallery mode's wavelengths, which modulates the emission of the fluorescent material. This device shows an unpreceded sensitivity of 10-3 per relative humidity percent.
UR - http://www.scopus.com/inward/record.url?scp=85010190513&partnerID=8YFLogxK
U2 - 10.1364/OE.25.001165
DO - 10.1364/OE.25.001165
M3 - مقالة
C2 - 28158001
SN - 1094-4087
VL - 25
SP - 1165
EP - 1172
JO - Optics Express
JF - Optics Express
IS - 2
ER -