TY - JOUR
T1 - Sensing properties of indium oxide coated optical fiber devices based on lossy mode resonances
AU - Zamarreño, Carlos R.
AU - Sanchez, Pedro
AU - Hernaez, Miguel
AU - Del Villar, Ignacio
AU - Fernandez-Valdivielso, Carlos
AU - Matias, Ignacio R.
AU - Arregui, Francisco J.
PY - 2012
Y1 - 2012
N2 - In this work, lossy mode resonance (LMR)-based optical fiber refractometers fabricated by using a transparent coating (indium oxide) as the LMR supporting layer are studied. The utilization of the high refractive index indium oxide coatings enables the fabrication of highly sensitive optical fiber refractometers, the resonance of which can be tuned by adjusting the fabrication parameters, such as the coating thickness. The detection technique is based on the wavelength shift of the resonances produced by both TE and TM polarization modes. Here, the influence of the coating thickness on the sensitivity of the device to external refractive index variations is observed. Maximum sensitivities of 2.03e-4 and 2.35e-4 refractive index units (RIU) per nanometer for TE and TM polarizations have been obtained, respectively. The sensitivity of the devices to diverse volatile organic compounds (VOCs), such as ethanol, methanol, isopropyl alcohol, acetone, and ammonia has been studied and the cross-sensitivity to temperature and moisture as well.
AB - In this work, lossy mode resonance (LMR)-based optical fiber refractometers fabricated by using a transparent coating (indium oxide) as the LMR supporting layer are studied. The utilization of the high refractive index indium oxide coatings enables the fabrication of highly sensitive optical fiber refractometers, the resonance of which can be tuned by adjusting the fabrication parameters, such as the coating thickness. The detection technique is based on the wavelength shift of the resonances produced by both TE and TM polarization modes. Here, the influence of the coating thickness on the sensitivity of the device to external refractive index variations is observed. Maximum sensitivities of 2.03e-4 and 2.35e-4 refractive index units (RIU) per nanometer for TE and TM polarizations have been obtained, respectively. The sensitivity of the devices to diverse volatile organic compounds (VOCs), such as ethanol, methanol, isopropyl alcohol, acetone, and ammonia has been studied and the cross-sensitivity to temperature and moisture as well.
KW - Indium oxide
KW - lossy mode resonances (LMRs)
KW - optical fiber sensor
KW - refractometer
UR - https://www.scopus.com/pages/publications/82555189390
U2 - 10.1109/JSEN.2011.2142181
DO - 10.1109/JSEN.2011.2142181
M3 - Article
AN - SCOPUS:82555189390
SN - 1530-437X
VL - 12
SP - 151
EP - 155
JO - IEEE Sensors Journal
JF - IEEE Sensors Journal
IS - 1
M1 - 5749679
ER -