搜索结果: 1-9 共查到“理学 spectrally”相关记录9条 . 查询时间(0.109 秒)
Spectrally narrow, long-term stable optical frequency reference based on a Eu$^{3+}$:Y$_{2}$SiO$_{5}$ crystal at cryogenic temperature
Spectrally narrow long-term stable optical frequency reference cryogenic temperature
2011/8/5
Abstract: Using an ultrastable continuous-wave laser at 580 nm we performed spectral hole burning of Eu$^{3+}$:Y$_{2}$SiO$_{5}$ at very high spectral resolution. Essential parameters determining the u...
Occupation times of spectrally negative Lévy processes with applications
Occupation time spectrally negative Lévy processes fluctuation theory scale functions
2011/2/21
In this paper, we compute the Laplace transform of occupation times (of the negative half-line) of spectrally negative Lévy processes. Our results are extensions of known results
for standard Brownia...
Belief-propagation-based joint channel estimation and decoding for spectrally efficient communication over unknown sparse channels
belief propagation message passing compressive sensing compressed sensing
2011/2/24
We consider spectrally-efficient communication over a Rayleigh N-block-fading channel with a K-
sparse L-length discrete-time impulse response (for 0ere neither the transmitter nor
receiv...
Spectrally-invariant behavior of zenith radiance around cloud edges simulated by radiative transfer
zenith radiance cloud edges radiative transfer
2010/12/20
In a previous paper, we discovered a surprising spectrally-invariant relationship in shortwave spectrometer observations taken by the Atmospheric Radiation Measurement (ARM) program. The relationship ...
All-Sky spectrally matched UBVRI-ZY and u'g'r'i'z' magnitudes for stars in the Tycho2 catalog
Stars Data Analysis and Techniques
2010/11/12
We present fitted UBVRI-ZY and u′g′r′i′z′ magnitudes, spectral types and distances for 2.4M stars, derived from synthetic photometry of a library spectrum that best matches the Tycho2 BTVT , NOMAD RN ...
Bright source of spectrally pure polarization-entangled photons with nearly single-mode emission
Bright source spectrally polarization-entangled photons nearly single-mode emission
2010/10/19
We present results of a bright entangled photon source operating at 1552 nm via type-II collinear degenerate spontaneous parametric down-conversion in periodically poled KTP crystal. We report a conse...
The UV-A and visible solar irradiance spectrum: inter-comparison of absolutely calibrated, spectrally medium resolution solar irradiance spectra from balloon- and satellite-borne measurements
UV-A and visible solar irradiance spectrum spectrally medium resolution solar irradiance spectra
2009/2/12
Within the framework of the ENVISAT/-SCIAMACHY satellite validation, solar irradiance spectra are absolutely measured at moderate resolution in the UV/visible spectral range (in the UV from 316.7-418...
Dependence of cloud properties derived from spectrally resolved visible satellite observations on surface temperature
cloud properties satellite surface temperature
2008/11/6
Cloud climate feedback constitutes the most important uncertainty in climate modelling, and currently even its sign is still unknown. In the recently published report of the intergovernmental panel on...
Spatial and temporal variation in spectral reflectance: Are seagrass species spectrally distinct?
Spatial and temporal variation spectral reflectance seagrass species spectrally distinct
2014/5/19
The spectral signatures of the seagrasses Zostera capricorni, Posidonia australis, and Halophila ovalis were investigated to determine whether species could be discriminated by remote sensing. The spe...