Results 101 to 110 of about 1,638,876 (299)

Optical Fiber Coupling System for Steerable Endoscopic Instruments. [PDF]

open access: yesAnnu Int Conf IEEE Eng Med Biol Soc, 2021
Zhu M   +5 more
europepmc   +1 more source

Fully Additive Vertical Organic Electrochemical Transistors on Renewable and Compostable Substrates Enable Ultrasensitive Bioelectronics

open access: yesAdvanced Functional Materials, EarlyView.
Fully additive vertical organic electrochemical transistors (vOECTs) with channel‐length of 226 nm on a 50 µm compostable substrate achieve >106 current modulation and ∼36 mS transconductance. Ion‐selective integration enables 1.1 mA dec−1 sensitivity and 36 µm detection limit, highlighting a scalable platform for sustainable electronics and ...
Giulia Frusconi   +3 more
wiley   +1 more source

Theoretical Study on the Butt-coupling of Semiconductor Laser and Fiber Bragg Grating

open access: yes, 2005
The butt-coupling between a semiconductor laser diode and a fiber Bragg grating external cavity acts a key roll on the laser characteristics. The scatter matrix method considering the butt-coupling efficiency is used to analyze the butt-coupling between ...
Chen Shaowu, Xu Qingyang
core  

Advances in Sustainable and Wearable Textile Based Soft Robotics

open access: yesAdvanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas   +6 more
wiley   +1 more source

UV generation in a pure-silica holey fiber [PDF]

open access: yes, 2003
We report supercontinuum generation extending to 300nm in the UV from a pure-silica holey fiber. The broad spectrum was obtained by launching ultra-short pulses (~150fs, 10nJ at 820nm) from an amplified Ti:sapphire laser.
J.J. Baumberg   +24 more
core   +1 more source

Coupling Efficiency of a Partially Coherent Radially Polarized Vortex Beam into a Single-Mode Fiber

open access: yesApplied Sciences, 2018
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

Homological Coupling of Chromatin Fibers

open access: yes
We tested whether sequence homology exists between chromatin fibers at contact points using long-read chromatin conformation capture data. Analysis of 12 million PacBio CiFi reads from GM12878 cells yielded 6,055 accurately mapped ligation points. We developed a method to distinguish between ligation junctions in reads and genomic ligation points ...
openaire   +1 more source

Enhanced signal coupling in wide-field fiber-coupled imagers

open access: yesOptics Express, 2015
Some high-performance imaging systems, including wide angle "monocentric" lenses made of concentric spherical shells, form a deeply curved image surface coupled to focal plane sensors by optical fiber bundles with a curved input and flat output face. However, refraction at the angled input facet limits the range of input angles, even for fiber bundles ...
Ashkan, Arianpour   +3 more
openaire   +2 more sources

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