Sentences with phrase «solid angle of light»
«There is this invariant of optical systems that says that if you take the area of the plane and the solid angle of light coming out from that plane, that is fixed,» Cossairt says.
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The group of Majed Chergui at EPFL, along with national and international colleagues, have shed light on this long - standing question by using a combination of cutting - edge experimental methods: steady - state angle - resolved photoemission spectroscopy (ARPES), which maps the energetics of the electrons along the different axis in the solid; spectroscopic ellipsometry, which determines the optical properties of the solid with high accuracy; and ultrafast two - dimensional deep - ultraviolet spectroscopy, used for the first time in the study of materials, along with state - of - the - art first - principles theoretical tools.
An easygoing cinematographer with a charming personality and a clear mission — use light, lenses, angles and intuition to aid the director in top - notch storytelling — Jeff has a solid understanding of the technical and artistic aspects of cinematography and believes in mixing creativity with preparation and efficiency.