Results 111 to 120 of about 88,989 (315)
Ultrahigh–Q Microtoroid On-Chip Resonators for Low Threshold Microlasers [PDF]
Recently demonstrated silica toroidal microcavities, as on-chip resonant cavities, become one of the most promising laser resonators due to their exceptional ability to confine optical energy temporarily and spatially (high Q-factor and small mode volume)
Min, Bumki
core +1 more source
A swelling‐programmed micropatterned hydrogel guides adherent cells through a controlled transition from cell–matrix anchoring to cadherin‐mediated cell–cell compaction, enabling rapid assembly of high‐viability spheroids with defined size and morphology.
Han Gyeol Nam +8 more
wiley +1 more source
Parameter Self-Adjusting Single-Mode Fiber Nutation Coupling Algorithm Based on Fuzzy Control
The free-space optical communication fiber coupling system requires improved coupling efficiency through the fiber nutation algorithm. However, traditional fiber nutation algorithms suffer from issues such as fixed parameters and limited correction range.
Yongkai Liu +7 more
doaj +1 more source
Optical Fiber Coupling System for Steerable Endoscopic Instruments. [PDF]
Zhu M +5 more
europepmc +1 more source
Cladding-mode assisted fiber-to-fiber and fiber-to-free-space coupling
A simple scheme is introduced to simplify coupling of the fundamental mode of a single-mode fiber to free-space and/or into another fiber or waveguide. The analysis shows that the lowest-order cladding modes of standard single-mode fiber, which may be readily excited using various fiber-grating technologies, possess superior coupling performance ...
Yufeng Li, Turan Erdogan
openaire +1 more source
An intrinsic photoactive star‐shaped zinc phtalocyanine‐poly(L‐glutamic acid) (ZnPc‐PGA) nanoplatform for multimodal glioblastoma (GBM) therapy and brain‐targeted elivery. A ZnPc‐PGA‐based multifunctional theranostic nanocarrier platform enables image‐guided, multimodal GBM therapy. ZnPc‐PGA nanocarriers support the integration of fluorescence imaging,
Amina Benaicha‐Fernández +14 more
wiley +1 more source
Coupling Efficiency of a Partially Coherent Radially Polarized Vortex Beam into a Single-Mode Fiber
We study the problem of coupling partially coherent radially polarized (PCRP) vortex beams into a single-mode optical fiber. Using the well-known concept of the cross-spectral density (CSD) matrix, we derive a general expression for the coupling ...
Xinlei Zhu +4 more
doaj +1 more source
Measurement and Region Identification in Deep Displacement of Slopes Based on Rod-Fiber Coupling Structure. [PDF]
Liu P, Liu Z, Zhou C.
europepmc +1 more source
Fiber-Integrated Reversibly Wavelength-Tunable Nanowire Laser Based on Nanocavity Mode Coupling
As an ideal miniaturized light source, wavelength-tunable nanolasers capable of emitting a wide spectrum stimulate intense interests for on-chip optoelectronics, optical communications, and spectroscopy.
Haifeng Li (142063) +14 more
core +1 more source
Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo +2 more
wiley +1 more source

