optical negative

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• Negative index metamaterials — A negative index metamaterial causes light to refract, or bend, differently than in more common positive refractive index materials. Negative index metamaterials or negative index materials (NIM) are artificial structures where the refractive… …   Wikipedia

• Negative refraction — is the name for an electromagnetic phenomenon where light rays are refracted at an interface in the reverse sense to that normally expected. Such an effect can be obtained using a metamaterial which has been designed to achieve a negative value… …   Wikipedia

• Optical mapping — Optical mapping[1] is a technique for constructing ordered, genome wide, high resolution restriction maps from single, stained molecules of DNA, called optical maps . By mapping the location of restriction enzyme sites along the unknown DNA of an …   Wikipedia

• Optical physics — Optical physics, or optical science, is a subfield of atomic, molecular, and optical physics. It is the study of the generation of electromagnetic radiation, the properties of that radiation, and the interaction of that radiation with matter,… …   Wikipedia

• Optical disc recording modes — Optical discs Optical disc Optical disc drive Optical disc authoring Authoring software Recording technologies Recording modes Packet writing Optical media types …   Wikipedia

• Negative luminescence — is a physical phenomenon by which an electronic device emits less thermal radiation when an electric current is passed through it than it does in thermal equilibrium (current off). When viewed by a thermal camera, an operating negative… …   Wikipedia

• Optical relief — (usually noted as simply relief) is a concept in optical mineralogy which refers to the degree in which mineral grains stand out from the mounting medium,[1] usually either oil with a known refractive index or Canada Balsam. Relief is an… …   Wikipedia

• Optical aberration — v · d · e Optical aberration …   Wikipedia

• Optical isolator — This article is about the optical component. For the optoelectronic component, see Opto isolator. An optical isolator, or optical diode, is an optical component which allows the transmission of light in only one direction. It is typically used to …   Wikipedia

• Optical microscope — Microscope Uses Small sample observation Notable experiments Discovery of cells Inventor Hans Lippershey Zacharias Jans …   Wikipedia

• optical activity — Physical Chem. the ability of a substance to rotate the plane of polarization of plane polarized light. [1875 80] * * * Ability of a substance to rotate the plane of polarization of a beam of light passed through it, either as crystals or in… …   Universalium