Results 11 to 20 of about 71,451 (265)
Tensor characteristics of forward Brillouin sensors in bare and coated fibers
APL Photonics, 2023 Forward Brillouin scattering fiber sensors can detect and analyze media outside the cladding of standard fibers, where guided light does not reach. Nearly all such sensors reported to-date have relied on the radially symmetric guided acoustic modes of ...
Alon Bernstein +6 more
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Hybrid guided space-time optical modes in unpatterned films
Nature Communications, 2020 Waveguides typically function by using boundary conditions to contain light. Here, the authors show that by using space-time wavepackets, light can be guided in an unpatterned planar waveguide as the field remains localized along the unbounded dimension.
Abbas Shiri +4 more
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Characteristics of Resonantly-Guided Modes in Microstructured Optical Fibers
Photonics, 2014 Modal characteristics of resonantly-guided modes (RGMs) in microstructured fibers were investigated through numerical simulation. The modes of interest are supported in a class of fibers consisting of a circularly arranged periodic array of high index ...
Yasuo Ohtera +2 more
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An Ultrasonic Guided Wave Mode Selection and Excitation Method in Rail Defect Detection
Applied Sciences, 2019 Different guided wave mode has different sensitivity to the defects of rail head, rail web and rail base in the detection of rail defects using ultrasonic guided wave.
Hongmei Shi +4 more
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Plasmon guided modes in nanoparticle metamaterials
Optics Express, 2008 Surface modes in nanostructured metallic metamaterial films are reported showing larger confinement than plasmons in metallic waveguides of similar dimensions, but in contrast to plasmons, the new modes have TE polarization. The metamaterial, formed by planar arrays of nearly-touching metallic nanoparticles, behaves as a high-index dielectric for the ...
Sainidou, R. +1 more
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Chirped guided-mode resonance biosensor [PDF]
Optica, 2017 Advanced biomedical diagnostic technologies fulfill an important role in improving health and well-being in society. A large number of excellent technologies have already been introduced and have given rise to the "lab-on-a-chip" paradigm. Most of these technologies, however, require additional instrumentation for interfacing and readout, so they are ...
Triggs, Graham Jack +5 more
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Guided-Mode-Leaky-Mode-Guided-Mode Fiber Interferometer and Its High Sensitivity Refractive Index Sensing Technology [PDF]
Sensors, 2016 A cascaded symmetrical dual-taper Mach-Zehnder interferometer structure based on guided-mode and leaky-mode interference is proposed in this paper. Firstly, the interference spectrum characteristics of interferometer has been analyzed by the Finite Difference-Beam Propagation Method (FD-BPM).
Qi Wang 0008 +3 more
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Sensors, 2017 Ultrasonic guided wave (UGW)-based condition monitoring has shown great promise in detecting, localizing, and characterizing damage in complex systems. However, the application of guided waves for damage detection is challenging due to the existence of ...
Vykintas Samaitis, Liudas Mažeika
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New Journal of Physics, 2021 We study the cross-sectional profiles and spatial distributions of the fields in guided normal modes of two coupled parallel optical nanofibers. We show that the distributions of the components of the field in a guided normal mode of two identical ...
Fam Le Kien +3 more
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A Guided Mode Resonance Aptasensor for Thrombin Detection [PDF]
Sensors, 2011 Recent developments in aptamers have led to their widespread use in analytical and diagnostic applications, particularly for biosensing. Previous studies have combined aptamers as ligands with various sensors for numerous applications. However, merging the aptamer developments with guided mode resonance (GMR) devices has not been attempted.
Sheng-Fu Lin +6 more
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