The Experts below are selected from a list of 29010 Experts worldwide ranked by ideXlab platform
Ciling Pan - One of the best experts on this subject based on the ideXlab platform.
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voltage controlled liquid crystal terahertz phase shifter with Indium Tin Oxide nanowhiskers as transparent electrodes
Optics Letters, 2014Co-Authors: Chanshan Yang, Tsung Ta Tang, Po Han Chen, Rupin Pan, Ciling PanAbstract:Indium-Tin-Oxide nanowhiskers were employed as transparent electrodes in a liquid-crystal terahertz phase shifter. Transmittance of the device was as high as ∼75%. Phase shift exceeding π/2 at 1.0 THz is achieved in a ∼500 μm-thick cell. The driving voltage required for the device operaTing as a quarter-wave plate was as low as 17.68 V (rms), an improvement of nearly an order of magnitude over previous work.
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liquid crystal terahertz phase shifters with functional Indium Tin Oxide nanostructures for biasing and alignment
Applied Physics Letters, 2014Co-Authors: Chanshan Yang, Tsung Ta Tang, Rupin Pan, Ciling PanAbstract:Indium Tin Oxide (ITO) nanowhiskers (NWhs) obliquely evaporated by electron-beam glancing-angle deposition can serve simultaneously as transparent electrodes and alignment layer for liquid crystal (LC) devices in the terahertz (THz) frequency range. To demonstrate, we constructed a THz LC phase shifter with ITO NWhs. Phase shift exceeding π/2 at 1.0 THz was achieved in a ∼517 μm-thick cell. The phase shifter exhibits high transmittance (∼78%). The driving voltage required for quarter-wave operation is as low as 5.66 V (rms), compatible with complementary metal-Oxide-semiconductor (CMOS) and thin-film transistor (TFT) technologies.
Chanshan Yang - One of the best experts on this subject based on the ideXlab platform.
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voltage controlled liquid crystal terahertz phase shifter with Indium Tin Oxide nanowhiskers as transparent electrodes
Optics Letters, 2014Co-Authors: Chanshan Yang, Tsung Ta Tang, Po Han Chen, Rupin Pan, Ciling PanAbstract:Indium-Tin-Oxide nanowhiskers were employed as transparent electrodes in a liquid-crystal terahertz phase shifter. Transmittance of the device was as high as ∼75%. Phase shift exceeding π/2 at 1.0 THz is achieved in a ∼500 μm-thick cell. The driving voltage required for the device operaTing as a quarter-wave plate was as low as 17.68 V (rms), an improvement of nearly an order of magnitude over previous work.
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liquid crystal terahertz phase shifters with functional Indium Tin Oxide nanostructures for biasing and alignment
Applied Physics Letters, 2014Co-Authors: Chanshan Yang, Tsung Ta Tang, Rupin Pan, Ciling PanAbstract:Indium Tin Oxide (ITO) nanowhiskers (NWhs) obliquely evaporated by electron-beam glancing-angle deposition can serve simultaneously as transparent electrodes and alignment layer for liquid crystal (LC) devices in the terahertz (THz) frequency range. To demonstrate, we constructed a THz LC phase shifter with ITO NWhs. Phase shift exceeding π/2 at 1.0 THz was achieved in a ∼517 μm-thick cell. The phase shifter exhibits high transmittance (∼78%). The driving voltage required for quarter-wave operation is as low as 5.66 V (rms), compatible with complementary metal-Oxide-semiconductor (CMOS) and thin-film transistor (TFT) technologies.
Ignacio R. Matias - One of the best experts on this subject based on the ideXlab platform.
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optical fiber refractometers based on Indium Tin Oxide coaTings fabricated by sputtering
Optics Letters, 2012Co-Authors: S Lopez, Miguel Hernaez, I. Del Villar, Francisco J. Arregui, Ruiz C Zamarreno, Ignacio R. MatiasAbstract:This Letter presents the fabrication of optical fiber refractometers based on Indium Tin Oxide (ITO) coaTings deposited by sputtering with response in the visible region. ITO thin films have been sputtered by means of a rotaTing mechanism that enables the fabrication of smooth and homogeneous coaTings onto the optical fiber core. The ITO coaTing acts as a resonance supporTing layer. This permits us to couple light from the waveguide to the ITO-coaTing/external medium region at specific wavelength ranges. The device is sensitive to external medium refractive index, which allows its utilization as a refractometer. The sensitivity is dependent on the coaTing thickness, ranging from 523.21 to 1221 nm/refractive index unit in the explored sensors. The sensor development process is time effective compared to other techniques such as dip coaTing or layer-by-layer self-assembly, which is interesTing in terms of mass production.
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optical fiber refractometers based on sputtered Indium Tin Oxide coaTings
International Conference on Sensing Technology, 2011Co-Authors: S Lopez, Miguel Hernaez, I. Del Villar, Francisco J. Arregui, C R Zamarreno, Ignacio R. MatiasAbstract:This work presents the fabrication of optical fiber refractometers based on Indium Tin Oxide (ITO) coaTings deposited by sputtering with response in the visible spectral region. ITO thin-films have been sputtered by employing a rotaTing mechanism that enables the fabrication of smooth and homogeneous coaTings onto the optical fiber core. Fabricated ITO coated optical fiber devices present several resonances in the visible and near infrared region. These resonances show high optical power attenuations (more than 10 dB) in the visible spectral region, which produces changes in the colour of the output visible light. Therefore, since these resonances shift as a function of the refractive index (RI) of the surrounding medium it is feasible to determine the RI of the outer medium in contact with the ITO coaTing by simply monitoring the chromatic coordinates (colour change), x and y, of the visible output light.
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lossy mode resonance generation with Indium Tin Oxide coated optical fibers for sensing applications
Journal of Lightwave Technology, 2010Co-Authors: I Del Villar, Miguel Hernaez, Francisco J. Arregui, C R Zamarreno, Ignacio R. MatiasAbstract:Surface plasmon resonances and lossy mode resonances (LMRs) can be generated with Indium Tin Oxide (ITO) coated optical fibers. Both phenomena are analyzed and compared. LMRs present important advantages: they do not require a specific polarization of light, it is possible to generate multiple attenuation bands in the transmission spectrum, and the sensitivity of the device to external parameters can be tuned. The key parameter is the thickness of the ITO coaTing. The study is supported with both theoretical and experimental results. The main purposes are sensing and generation of multiple-wavelength filters.
Rupin Pan - One of the best experts on this subject based on the ideXlab platform.
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voltage controlled liquid crystal terahertz phase shifter with Indium Tin Oxide nanowhiskers as transparent electrodes
Optics Letters, 2014Co-Authors: Chanshan Yang, Tsung Ta Tang, Po Han Chen, Rupin Pan, Ciling PanAbstract:Indium-Tin-Oxide nanowhiskers were employed as transparent electrodes in a liquid-crystal terahertz phase shifter. Transmittance of the device was as high as ∼75%. Phase shift exceeding π/2 at 1.0 THz is achieved in a ∼500 μm-thick cell. The driving voltage required for the device operaTing as a quarter-wave plate was as low as 17.68 V (rms), an improvement of nearly an order of magnitude over previous work.
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liquid crystal terahertz phase shifters with functional Indium Tin Oxide nanostructures for biasing and alignment
Applied Physics Letters, 2014Co-Authors: Chanshan Yang, Tsung Ta Tang, Rupin Pan, Ciling PanAbstract:Indium Tin Oxide (ITO) nanowhiskers (NWhs) obliquely evaporated by electron-beam glancing-angle deposition can serve simultaneously as transparent electrodes and alignment layer for liquid crystal (LC) devices in the terahertz (THz) frequency range. To demonstrate, we constructed a THz LC phase shifter with ITO NWhs. Phase shift exceeding π/2 at 1.0 THz was achieved in a ∼517 μm-thick cell. The phase shifter exhibits high transmittance (∼78%). The driving voltage required for quarter-wave operation is as low as 5.66 V (rms), compatible with complementary metal-Oxide-semiconductor (CMOS) and thin-film transistor (TFT) technologies.
Tsung Ta Tang - One of the best experts on this subject based on the ideXlab platform.
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voltage controlled liquid crystal terahertz phase shifter with Indium Tin Oxide nanowhiskers as transparent electrodes
Optics Letters, 2014Co-Authors: Chanshan Yang, Tsung Ta Tang, Po Han Chen, Rupin Pan, Ciling PanAbstract:Indium-Tin-Oxide nanowhiskers were employed as transparent electrodes in a liquid-crystal terahertz phase shifter. Transmittance of the device was as high as ∼75%. Phase shift exceeding π/2 at 1.0 THz is achieved in a ∼500 μm-thick cell. The driving voltage required for the device operaTing as a quarter-wave plate was as low as 17.68 V (rms), an improvement of nearly an order of magnitude over previous work.
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liquid crystal terahertz phase shifters with functional Indium Tin Oxide nanostructures for biasing and alignment
Applied Physics Letters, 2014Co-Authors: Chanshan Yang, Tsung Ta Tang, Rupin Pan, Ciling PanAbstract:Indium Tin Oxide (ITO) nanowhiskers (NWhs) obliquely evaporated by electron-beam glancing-angle deposition can serve simultaneously as transparent electrodes and alignment layer for liquid crystal (LC) devices in the terahertz (THz) frequency range. To demonstrate, we constructed a THz LC phase shifter with ITO NWhs. Phase shift exceeding π/2 at 1.0 THz was achieved in a ∼517 μm-thick cell. The phase shifter exhibits high transmittance (∼78%). The driving voltage required for quarter-wave operation is as low as 5.66 V (rms), compatible with complementary metal-Oxide-semiconductor (CMOS) and thin-film transistor (TFT) technologies.