The Experts below are selected from a list of 309 Experts worldwide ranked by ideXlab platform
Tian Yang - One of the best experts on this subject based on the ideXlab platform.
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plasmonic crystal cavity on single mode Optical Fiber end facet for label free biosensing
Applied Physics Letters, 2016Co-Authors: Jing Long, Xin Zhou, Jie Yang, Tian YangAbstract:Surface plasmon resonance (SPR) devices on Single-Mode Optical Fiber (SMF) end facets are desired for label-free biosensing, due to flexible light delivery, in vivo inspection capability, and seamless integration with Fiber-optic communication techniques. We report a plasmonic crystal cavity structure that has a steep resonance near the plasmonic bandedge, a fabrication process to efficiently transfer and align the structure onto a bare SMF end facet, and characterization of its sensing performance. With a sensitivity of 571 nm RIU−1, a figure of merit of 68 RIU−1 and a real-time refractive index detection limit of 3.5 × 10−6 RIU, our sensors can be readily applied in common SPR biosensing experiments. They are over an order of magnitude more sensitive than reported modified-end multimode Fiber SPR devices, while there are no reports on previous SMF end facet devices' detection limits which have very low figures of merit.
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plasmonic crystal cavity on single mode Optical Fiber end facet for label free biosensing
arXiv: Optics, 2015Co-Authors: Jing Long, Xin Zhou, Jie Yang, Tian YangAbstract:All surface plasmon resonance (SPR) devices on Single-Mode Optical Fibers' (SMF) end facets, as reported up to date, are limited by severely broad and shallow resonance spectra. The consequent poor performance when they are used as refractive index sensors, together with the challenge of nanofabrication on Fiber end facets, has prohibited the development of such devices for label-free biosensing. Meanwhile, the planewave coupled, multimode Fiber and Fiber sidewall SPR counterparts are extensively employed for label-free biosensing. In this paper, we report the design, fabrication and characterization of a plasmonic crystal cavity on a SMF end facet, which shows high performance label-free sensing capability that comes from a steep cavity resonance near the plasmonic bandedge. The experimental figure-of-merit is 68 RIU^-1, which is over twenty times improvement to previous reports. The refractive index detection limit is 3.5*10^-6 RIU at 1 s integration time. We also describe a novel glue-and-strip process to transfer gold nano structures onto Fiber end facets.
Luca Palmieri - One of the best experts on this subject based on the ideXlab platform.
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polarization mode dispersion characterization of single mode Optical Fiber using backscattering technique
Journal of Lightwave Technology, 1998Co-Authors: F Corsi, Andrea Galtarossa, Luca PalmieriAbstract:This paper presents a completely new method able to characterize polarization mode dispersion (PMD) properties of randomly birefringent Single-Mode Fibers, using polarization sensitive backscattering technique. We show analytical relationships between evolution of polarization state of backscattered signal with respect to state of polarization of forward one. Our technique allows one to measure differential group delay, beat length, and correlation length at the same time over long Single-Mode Fibers using only one Fiber end. Experimental data fit very well with numerical results, confirming the capability of our technique for fast routine characterization of PMD during cabling, before and after installation.
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polarization mode dispersion characterization of single mode Optical Fiber using backscattering technique
Journal of Lightwave Technology, 1998Co-Authors: F Corsi, Andrea Galtarossa, Luca PalmieriAbstract:This paper presents a completely new method able to characterize polarization mode dispersion (PMD) properties of randomly birefringent Single-Mode Fibers, using polarization sensitive backscattering technique. We show analytical relationships between evolution of polarization state of backscattered signal with respect to state of polarization of forward one. Our technique allows one to measure differential group delay, beat length, and correlation length at the same time over long Single-Mode Fibers using only one Fiber end. Experimental data fit very well with numerical results, confirming the capability of our technique for fast routine characterization of PMD during cabling, before and after installation.
Pramod R Wateka - One of the best experts on this subject based on the ideXlab platform.
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near zero bending loss in a double trenched bend insensitive Optical Fiber at 1550 nm
Optics Express, 2009Co-Authors: Pramod R WatekaAbstract:We have developed a new Single-Mode Optical Fiber (SMF) which exhibits ultra low bend sensitivity over a wide communication band. The measured mean bending loss at 1550 nm was about 0.0095 dB for a loop of 10 mm diameter.
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design and development of a trenched Optical Fiber with ultra low bending loss
Optics Express, 2009Co-Authors: Pramod R WatekaAbstract:We have designed and experimentally demonstrated a single mode Optical Fiber with a very low bending loss of about 0.014 dB/loop at 1550 nm for a bending radius of 5 mm.
Jing Long - One of the best experts on this subject based on the ideXlab platform.
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plasmonic crystal cavity on single mode Optical Fiber end facet for label free biosensing
Applied Physics Letters, 2016Co-Authors: Jing Long, Xin Zhou, Jie Yang, Tian YangAbstract:Surface plasmon resonance (SPR) devices on Single-Mode Optical Fiber (SMF) end facets are desired for label-free biosensing, due to flexible light delivery, in vivo inspection capability, and seamless integration with Fiber-optic communication techniques. We report a plasmonic crystal cavity structure that has a steep resonance near the plasmonic bandedge, a fabrication process to efficiently transfer and align the structure onto a bare SMF end facet, and characterization of its sensing performance. With a sensitivity of 571 nm RIU−1, a figure of merit of 68 RIU−1 and a real-time refractive index detection limit of 3.5 × 10−6 RIU, our sensors can be readily applied in common SPR biosensing experiments. They are over an order of magnitude more sensitive than reported modified-end multimode Fiber SPR devices, while there are no reports on previous SMF end facet devices' detection limits which have very low figures of merit.
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plasmonic crystal cavity on single mode Optical Fiber end facet for label free biosensing
arXiv: Optics, 2015Co-Authors: Jing Long, Xin Zhou, Jie Yang, Tian YangAbstract:All surface plasmon resonance (SPR) devices on Single-Mode Optical Fibers' (SMF) end facets, as reported up to date, are limited by severely broad and shallow resonance spectra. The consequent poor performance when they are used as refractive index sensors, together with the challenge of nanofabrication on Fiber end facets, has prohibited the development of such devices for label-free biosensing. Meanwhile, the planewave coupled, multimode Fiber and Fiber sidewall SPR counterparts are extensively employed for label-free biosensing. In this paper, we report the design, fabrication and characterization of a plasmonic crystal cavity on a SMF end facet, which shows high performance label-free sensing capability that comes from a steep cavity resonance near the plasmonic bandedge. The experimental figure-of-merit is 68 RIU^-1, which is over twenty times improvement to previous reports. The refractive index detection limit is 3.5*10^-6 RIU at 1 s integration time. We also describe a novel glue-and-strip process to transfer gold nano structures onto Fiber end facets.
Kartik Srinivasa - One of the best experts on this subject based on the ideXlab platform.
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efficient quantum dot single photon extraction into an Optical Fiber using a nanophotonic directional coupler
Applied Physics Letters, 2011Co-Authors: Marcelo Davanco, Matthew T Rakhe, Werne Wegscheide, Diete Schuh, Antonio Adolato, Kartik SrinivasaAbstract:We demonstrate a spectrally broadband and efficient technique for collecting emission from a single InAs quantum dot directly into a standard single mode Optical Fiber. In this approach, an Optical Fiber taper waveguide is placed in contact with a suspended GaAs nanophotonic waveguide with embedded quantum dots, forming a broadband directional coupler with standard Optical Fiber input and output. Efficient photoluminescence collection over a wavelength range of tens of nanometers is demonstrated, and a maximum collection efficiency of 6% (corresponding single photon rate of 3.0 MHz) into a single mode Optical Fiber is estimated for a single quantum dot exciton.
