搜索结果: 1-15 共查到“理学 Wavelength”相关记录74条 . 查询时间(0.078 秒)
Analysis of Dust Aerosol by Using Dual-Wavelength Lidar
Dust aerosol Size distribution Dual-wavelength lidar Lidar ratio
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2016/3/25
Simulation of dust aerosol optical property is rather difficult, due to its extremely irregular shape, which often brings about
difficulties in transforming its physical properties (such as size dist...
Wavelength influence in sub-pixel temperature retrieval using the dual-band technique
remote sensing volcanoes dual-band DAIS sensor hyperspectral analysis
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2015/9/7
The thermal model proposed by Crisp and Baloga (1990) for active lava flows considers thermal flux as a function of the fractional area of two thermally distinct radiant surfaces. In this model, the l...
Fluorescence Efficiency of Surface Seawater as a Function of Excitation and Emission Wavelength
Excitation and Emission Wavelength Surface Seawater
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2015/8/19
Fluorescence of natural waters has often been employed in attempts to quantify dissolved chromophores. However, it has not always been recognized that the intensity of fluorescence obtained from a giv...
Short-wavelength undulatory extinction in quartz recording coseismic deformation in the middle crust – an experimental study
Short-wavelength undulatory extinction quartz recording coseismic deformation
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2015/1/5
Deformation experiments are carried out on natural vein quartz in a modified Griggs-type solid medium apparatus to explore the preservation potential of microfabrics created by crystal-plastic d...
The AzTEC mm-wavelength camera
instrumentation:detectors submillimetre
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2014/12/23
AzTEC is a mm-wavelength bolometric camera utilizing 144 silicon nitride micromesh detectors. Here, we describe the AzTEC instrument architecture and its use as an astronomical instrument. We report o...
THE HUBBLE SPACE TELESCOPE WIDE FIELD CAMERA 3 EARLY RELEASE SCIENCE DATA: PANCHROMATIC FAINT OBJECT COUNTS FROM 0.2{2 MICRONS WAVELENGTH
Galactic stars counts the galaxy counts
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2014/12/22
We describe the Hubble Space Telescope (HST) Wide Field Camera 3 (WFC3) Early Re- lease Science (ERS) observations in the Great Observatories Origins Deep Survey (GOODS) South eld. The new WFC3 ERS d...
Deep 1.1 mm-wavelength imaging of the GOODS-S field by AzTEC/ASTE - I. Source catalogue and number counts
Source catalogue number counts
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2014/12/22
We present the first results from a confusion-limited map of the Great Observatories Origins Deep Survey-South (GOODS-S) taken with the AzTEC camera on the Atacama Submillimeter Telescope Experiment. ...
THE REDSHIFT SEARCH RECEIVER 3 MM WAVELENGTH SPECTRA OF 10 GALAXIES
wavelength spectra galaxies
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2014/12/20
The 3 mm wavelength spectra of 10 galaxies have been obtained at the Five College Radio Astronomy Observatory using a new, very broadband receiver and spectrometer, called the Redshift Search Receiver...
Galaxy evolution at high-redshift: Millimeter-wavelength surveys with the AzTEC camera
Pure sciences Dust Galaxy evolution Galaxies Star formation Submillimeter
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2014/12/9
Galaxies detected by their thermal dust emission at submillimeter (submm) and millimeter (mm) wavelengths comprise a population of massive, intensely star-forming systems in the early Universe. These ...
Analytical Study of Sub-Wavelength Imaging by Uniaxial Epsilon-Near-Zero Metamaterial Slabs
Analytical Study of Sub-Wavelength Uniaxial Epsilon-Near-Zero Metamaterial Slabs Optics
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2012/5/29
We show that the two-dimensional Green's function of a uniaxial (with possibly tilted optical axis) epsilon-near-zero metamaterial slab, of interest for sub-wavelength imaging, can be calculated analy...
Long-wavelength limit of gyrokinetics in a turbulent tokamak and its intrinsic ambipolarity
Long-wavelength limit of gyrokinetics turbulent tokamak its intrinsic ambipolarity Plasma Physics
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2012/4/20
Recently, the electrostatic gyrokinetic Hamiltonian and change of coordinates have been computed to order $\epsilon^2$ in general magnetic geometry. Here $\epsilon$ is the gyrokinetic expansion parame...
25 kHz narrow spectral bandwidth of a wavelength tunable diode laser with a short waveguide-based external cavity
25 kHz narrow spectral bandwidth wavelength tunable diode laser short waveguide-based external cavity Optics
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2012/4/19
We report on the spectral properties of a diode laser with a tunable external cavity in integrated optics. Even though the external cavity is short compared to other small-bandwidth external cavity la...
The Gamma-Ray Blazar PKS 0208-512, a Multi-Wavelength Investigation
Gamma-Ray Blazar PKS 0208-512 Multi-Wavelength Investigation
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2012/2/23
The gamma-ray blazar PKS 0208-512 has shown strong periods of flaring, at all frequencies from radio to gamma-ray. This has led to its inclusion in the TANAMI project, which tracks the jets of souther...
Wavelength Interleaving bi-directional Circulators
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2011/11/23
We report a wavelength-interleaving bidirectional circulator, in which the even and odd ITU channels circulate in opposite handedness. Demonstrated three-port bidirectional isolation ranges from 45 dB...
Enhancing the Frequency Response of Cross Polarization Wavelength Conversion
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2011/11/23
Abstract—This work presents a novel wavelength conversion scheme, differential cross-polarization modulation (DXPoM), using an extra birefringence delay to enhance the performance of the conventional ...