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Raman microspectroscopy is a laboratory technique used to produce molecular fingerprints of materials and biological specimens. However, to date, fluorescence has interfered with effective application...
Small but Plentiful: How the Faintest Galaxies Illuminated the Early Universe（图）
The universe Galaxy Astrophysics. The Milky Way. The big bang Ultraviolet The mass of the sun
2014/7/18
Light from tiny galaxies more than 13 billion years ago played a larger role than previously thought in creating the conditions in the universe as we know it today, according to a new study by researc...
Small, but plentiful: how the faintest galaxies illuminated the early universe（图）
Ultraviolet Stars Dwarf galaxies. The universe Astrophysics. Galaxy ionization
2014/7/18
Light from tiny galaxies over 13 billion years ago played a larger role than previously thought in creating the conditions in the universe as we know it today, a new study has found. Ultraviolet (UV) ...
Illuminated darkness: Molecular signatures of Congo River dissolved organic matter and its photochemical alteration as revealed by ultrahigh precision mass spectrometry
Illuminated darkness Molecular signatures of Congo River organic matter its photochemical alteration ultrahigh precision mass spectrometry
2014/4/17
Congo River water was filtered and then irradiated for 57 d in a solar simulator, resulting in extensive photodegradation of dissolved organic matter (DOM). Whole-water (i.e., unfractionated) DOM was ...
Lens axicon illuminated by polychromatic Gaussian beams for generating uniform focal segments
Lens axicon Polychromatic Gaussian beam Spherical aberration
2013/7/3
In this paper, we investiga te a lens axicon, which actual ly is a lens wi th spheri cal ab erration, ill uminated by a polych romatic Gaussian beam for produc ing an extended axial line imag e of a d...