نتایج جستجو برای: light dispersion
تعداد نتایج: 455082 فیلتر نتایج به سال:
We present a spectroscopic survey of the newly discovered Canes Venatici dwarf galaxy using the Keck/DEIMOS spectrograph. Two stellar populations of distinct kinematics are found to be present in this galaxy: an extended, metal-poor component, of half-light radius 7.8+2.4 −2.1 arcmin, which has a velocity dispersion of 13.9+3.2 −2.5 km s −1, and a more concentrated (half-light radius 3.6+1.1 −0...
The use of a programmable pulse shaper for spectral phase coding of broadband incoherent light is discussed. Our experiments result in tailoring of the electric field cross-correlation function between the shaped and the original unshaped light. This technique is illustrated through several examples, including binary spectral phase filtering, gray-level spectral phase filtering using quadratic-...
Interference measurements of a polychromatic partially coherent light source verify the existence of a temporal correlation vortex. Topological dispersion is found to destabilize this singularity.
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