Results 281 to 290 of about 36,597 (305)
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Analytical Chemistry, 2016
The combination of label-free, surface-sensitive measurement techniques based on different physical principles enables detailed characterization of biomacromolecular interactions at solid-liquid interfaces. To date, most combined measurement systems have involved experimental techniques with similar probing volumes, whereas the potential of utilizing ...
Abdul Rahim Ferhan +2 more
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The combination of label-free, surface-sensitive measurement techniques based on different physical principles enables detailed characterization of biomacromolecular interactions at solid-liquid interfaces. To date, most combined measurement systems have involved experimental techniques with similar probing volumes, whereas the potential of utilizing ...
Abdul Rahim Ferhan +2 more
openaire +2 more sources
Reflective-Mode Phase-Variation Permittivity Sensors Based on Coupled Resonators
2022 IEEE Sensors, 2022Pau Casacuberta +5 more
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ACS Sensors
Photoacoustic microscopy often faces challenges in direct measurement of broadband photoacoustic waves due to the use of narrow-bandwidth and optical opaque ultrasonic transducers, which compromises the depth localization accuracy in photoacoustic volumetric imaging. To overcome these challenges, we propose an Integrated Ultrasonic-Optical Sensor (IUOS)
Fan Yang +8 more
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Photoacoustic microscopy often faces challenges in direct measurement of broadband photoacoustic waves due to the use of narrow-bandwidth and optical opaque ultrasonic transducers, which compromises the depth localization accuracy in photoacoustic volumetric imaging. To overcome these challenges, we propose an Integrated Ultrasonic-Optical Sensor (IUOS)
Fan Yang +8 more
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Optics Letters, 2005
We have demonstrated a single fiber probe for simultaneous measurement of external refractive index and temperature based on two interferometers: a reflection-mode long-period grating (LPG) for refractometry and an intrinsic Fabry-Perot interferometer (IFPI) for temperature measurement.
Dae Woong, Kim +3 more
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We have demonstrated a single fiber probe for simultaneous measurement of external refractive index and temperature based on two interferometers: a reflection-mode long-period grating (LPG) for refractometry and an intrinsic Fabry-Perot interferometer (IFPI) for temperature measurement.
Dae Woong, Kim +3 more
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IEEE Transactions on Microwave Theory and Techniques
This article proposes a novel reflective-mode phase-variation sensor based on a movable step impedance resonator (SIR) implemented in coplanar waveguide (CPW) technology. The sensing principle is the variation of the phase of the reflection coefficient at a specific (operating) frequency generated by SIR motion.
Amirhossein Karami-Horestani +7 more
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This article proposes a novel reflective-mode phase-variation sensor based on a movable step impedance resonator (SIR) implemented in coplanar waveguide (CPW) technology. The sensing principle is the variation of the phase of the reflection coefficient at a specific (operating) frequency generated by SIR motion.
Amirhossein Karami-Horestani +7 more
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A full-field, reflection-mode Digital Gradient Sensing (DGS) technique capable of measuring small angular deflections of light rays reflected off specularly reflective planar surfaces is developed. The method is aided by 2D digital image correlation principle to quantify angular deflections of light rays.
Amith Jain +2 more
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Amith Jain +2 more
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IEEE Transactions on Microwave Theory and Techniques
This article presents a small-sized and highly sensitive planar microwave permittivity sensor based on a pair of weakly coupled step-impedance resonators (SIRs), the sensing elements. The sensor, a one-port structure, is implemented in coplanar waveguide (CPW) technology, and it operates in the reflection mode. The sensing principle is the variation in
Pau Casacuberta +4 more
openaire +2 more sources
This article presents a small-sized and highly sensitive planar microwave permittivity sensor based on a pair of weakly coupled step-impedance resonators (SIRs), the sensing elements. The sensor, a one-port structure, is implemented in coplanar waveguide (CPW) technology, and it operates in the reflection mode. The sensing principle is the variation in
Pau Casacuberta +4 more
openaire +2 more sources