Results 31 to 40 of about 124,823 (335)

Extremely short-length surface plasmon resonance sensors [PDF]

, 2008
The impact of the system design on the control of coupling between planar waveguide modes and surface plasmon polaritons (SPP) is analyzed. We examine how the efficiency of the coupling can be enhanced by an appropriate dimensioning of a multi-layer ...
Alexandre V. Kats, Boltasseva, Bozhevolnyi, Bozhevolnyi, Bozhevolnyi, Chen, Ctyroky, Ditlbacher, Dwivedi, Gauvreau, Harris, Harris, Homola, Homola, Homola, Johnstone, Kats, Kats, Lambeck, Lopez-Tejeira, Maxim L. Nesterov, Mikhailov, Nakano, Nemova, Nemova, Ordal, Rodrigo, Sergei K. Turitsyn, Shevchenko, Skorobogatiy, Skorobogatiy, Zayats, Zayats   +32 more
core   +3 more sources

Continuous-Wave Fiber Cavity Ringdown Pressure Sensing Based on Frequency-Shifted Interferometry

Sensors, 2018
We present a continuous-wave fiber cavity ringdown (FCRD) pressure-sensing method based on frequency-shifted interferometry (FSI). Compared with traditional CRD or FCRD techniques, this FSI-FCRD scheme deduces pressure by measuring the decay rate of ...
Yiwen Ou, Chunfu Cheng, Zehao Chen, Zhangyong Yang, Hui Lv, Li Qian   +5 more
doaj   +1 more source

An all-optical buffer based on temporal cavity solitons operating at 10 Gb/s

, 2016
We demonstrate the operation of an all-optical buffer based on temporal cavity solitons stored in a nonlinear passive fiber ring resonator. Unwanted acoustic interactions between neighboring solitons are suppressed by modulating the phase of the external
Coen, Stéphane, Eggleton, Benjamin J., Erkintalo, Miro, Jang, Jae K., Murdoch, Stuart G., Schröder, Jochen   +5 more
core   +1 more source

Development of an Aptamer Based Luminescent Optical Fiber Sensor for the Continuous Monitoring of Hg²⁺ in Aqueous Media

Sensors, 2020
A fluorescent optical fiber sensor for the detection of mercury (Hg2+) ions in aqueous solutions is presented in this work. The sensor was based on a fluorophore-labeled thymine (T)-rich oligodeoxyribonucleotide (ON) sequence that was directly ...
Nerea De Acha, César Elosúa, Francisco J. Arregui   +2 more
doaj   +1 more source

Ultra-fast all-optical 8-to-3 encoder utilizing photonic crystal fiber

AIP Advances, 2023
This work proposes a novel design of an 8-to-3 encoder in a photonic crystal fiber (PCF). It is composed of a buffer and three OR logic gates using circular air holes in a silicon dioxide substrate.
Saleh Naghizade, Azadeh Didari-Bader, Hamed Saghaei, Maryam Etezad   +3 more
doaj   +1 more source

DNA Aptamer Functionalized Hydrogels for Interferometric Fiber-Optic Based Continuous Monitoring of Potassium Ions

Biosensors, 2021
In the present paper, we describe a potassium sensor based on DNA-aptamer functionalized hydrogel, that is capable of continuous label-free potassium ion (K+) monitoring with potential for in situ application. A hydrogel attached to the end of an optical
Nataša Žuržul, Bjørn Torger Stokke
doaj   +1 more source

Study on optimization of nano-coatings for ultra-sensitive biosensors based on long-period fiber grating

Sensing and Bio-Sensing Research, 2020
Bio-chemical sensors are expected to offer high sensitivity and specificity towards the detection of an analyte. It has been found that optical sensors based on long period fiber gratings (LPFGs) meet most of these requirements, particularly when coated ...
Sankhyabrata Bandyopadhyay, Liyang Shao, Chao Wang, Shuaiqi Liu, Qiang Wu, Guoqiang Gu, Jie Hu, Yanjun Liu, Xiaolong Chen, Zhangqi Song, Xuefeng Song, Qiaoliang Bao, Mateusz Smietana   +12 more
doaj   +1 more source

Concept level evaluation of the optical voltage and current sensors and an arrayed waveguide grating for aero-electrical system applications [PDF]

, 2007
In this paper we present, for the first time, the hybrid fiber-optic voltage and current sensors interrogated using an arrayed waveguide grating (AWG) device.
Fusiek, G., McDonald, J.R., Niewczas, P.
core   +1 more source

A Molecularly Imprinted Polymer on a Plasmonic Plastic Optical Fiber to Detect Perfluorinated Compounds in Water

Sensors, 2018
A novel Molecularly Imprinted Polymer (MIP) able to bind perfluorinated compounds, combined with a surface plasmon resonance (SPR) optical fiber platform, is presented.
Nunzio Cennamo, Girolamo D’Agostino, Gianni Porto, Adriano Biasiolo, Chiara Perri, Francesco Arcadio, Luigi Zeni   +6 more
doaj   +1 more source

KLK7 overexpression promotes an aggressive phenotype and facilitates peritoneal dissemination in colorectal cancer cells

FEBS Open Bio, EarlyView.
KLK7, a tissue kallikrein‐related peptidase, is elevated in advanced colorectal cancer and associated with shorter survival. High KLK7 levels in ascites correlate with peritoneal metastasis. In mice, KLK7 overexpression increases metastasis. In vitro, KLK7 enhances cancer cell proliferation, migration, adhesion, and spheroid formation, driving ...
Yosr Z. Haffani, Tobias Dreyer, Meriem Naim, Rea Lo Dico, Natalia A. Ignatenko, Viktor Magdolen, Dalila Darmoul   +6 more
wiley   +1 more source