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Highly sensitive fiber loop ringdown strain sensor using photonic crystal fiber interferometer
Highly sensitive fiber loop ringdown strain sensor photonic crystal fiber interferometer
2011/7/27
A highly sensitive strain sensor is demonstrated by introducing a photonic crystal fiber (PCF) Mach–Zehnder interferometer (MZI) in a cavity ringdown fiber loop as a sensing element. The MZI is fabric...
Highly Sensitive Optical Line Checker with a Leaking Component Embedded on an Optical Fiber Cord
Optical Fiber Cord Leaking Component Highly Sensitive
2011/5/15
We have developed a practical optical line checker to judge whether fiber line is live or dark without any transmission failure, achieving detectable optical signal lower limit of -40 dBm in a wide wa...
Highly sensitive bend sensor with hybrid long-period and tilted fiber Bragg grating.
Long period grating Tilted fiber Bragg grating Cladding mode recoupling Bend sensor Curvature measureme nt
2010/3/27
We demonstrate a new type offi ber optic bend sensor with a hybrid structure made up of a long period grating (LPG) and a tilted fiber Bragg grating (TFBG). The sensing mechanis m is based on the spec...
Highly Sensitive InOx Ozone Sensing Films on Flexible Substrates
Highly Sensitive InOx Ozone Sensing Films Flexible Substrates
2009/9/4
InOx thin films with a thickness of the order of 100 nm were grown by dc magnetron sputtering on glass, Si and flexible (PET) substrates. The electrical conductivity of InOx thin films exhibited...
Highly Sensitive Sensors Based on Photonic Crystal Fiber Modal Interferometers
Highly Sensitive Sensors Photonic Crystal Fiber Modal Interferometers
2009/9/4
We review the research on photonic crystal fiber modal interferometers with emphasis placed on the characteristics that make them attractive for different sensing applications. The fabrication of such...
Mycobacterium avium subsp. paratuberculosis and M. a. avium detected by culture, IS900 and IS901 highly sensitive PCR in bulk tank milk from dairy herds in the Czech Republic between 2002 and 2004
Johne’s disease avian tuberculosis food safety zoonoses
2009/3/7
In this study, the possible presence was monitored of Mycobacterium avium subspecies paratuberculosis (MAP) and Mycobacterium avium subspecies avium (MAA) by means of culture examination and PCR in 25...
Investigation of highly sensitive surface plasmon resonance biosensors with Au nanoparticles embedded dielectric film using rigorous coupled wave analysis
surface plasmon resonance biosensor nanoparticles enhancement
2009/1/6
The detection performance of conventional surface plasmon resonance (SPR) biosensors is limited by its own mechanism. Recently, novel highly sensitive SPR biosensors with Au nanoparticles enhancement ...
Highly sensitive tunable diode laser absorption spectroscopy of CO2 around 1.53 μm
wavelength modulation diode lasers absorption spectroscopy
2006/1/28
The absolute absorption spectrum intensities of carbon dioxide sample have been recorded with a tunable diode laser spectrometer in the spectral range 6506–6520 cm–1, which is suitable for the in situ...
Highly sensitive diode laser absorption measurements of CO2 near 1.57 μm at room temperature
wavelength modulation diode lasers absorption spectroscopy
2005/1/26
The absolute absorption spectrum intensities of carbon dioxide sample have been recorded with a tunable diode laser spectrometer in the spectral range 6350–6364 cm–1, which is suitable for the in situ...