evanescent field

См. также в других словарях:

• Evanescent wave — Schematic representation of evanescent waves propagating along a metal dielectric interface. The charge density oscillations, when associated with electromagnetic fields, are called surface plasmon polariton waves. The exponential dependence of… …   Wikipedia

• Evanescent wave coupling — In optics, evanescent wave coupling is a process by which electromagnetic waves are transmitted from one medium to another by means of the evanescent, exponentially decaying electromagnetic field. Coupling is usually accomplished by placing two… …   Wikipedia

• evanescent — adjective 1》 chiefly literary quickly fading from sight, memory, or existence. 2》 Physics denoting a field or wave which extends into a region where it cannot propagate and whose amplitude therefore decreases with distance. Derivatives evanesce… …   English new terms dictionary

• Near-field scanning optical microscope — Near field scanning optical microscopy (NSOM/SNOM) is a microscopic technique for nanostructure investigation that breaks the far field resolution limit by exploiting the properties of evanescent waves. This is done by placing the detector very… …   Wikipedia

• Near and far field — This article is about the electromagnetic concept. For the mathematical, see Near field (mathematics). Antenna field regions for antennas that are shorter than the wavelength of the radiation they emit, such as the whip antenna of a citizen s… …   Wikipedia

• Superlens — A superlens, super lens or perfect lens is a lens which uses metamaterials to go beyond the diffraction limit. The diffraction limit is an inherent limitation in conventional optical devices or lenses.[1] In 2000, a type of lens was proposed,… …   Wikipedia

• Optical tweezers — (originally called single beam gradient force trap ) are scientific instruments that use a highly focused laser beam to provide an attractive or repulsive force (typically on the order of piconewtons), depending on the refractive index mismatch… …   Wikipedia

• Subwavelength-diameter optical fibre — A subwavelength diameter fibre wraps light around human hair. Subwavelength diameter optical fibre (SDF or SDOF) is an optical fibre whose diameter is less than the wavelength of the light being propagated through the fibre. An SDOF usually… …   Wikipedia

• Лазерные пинцеты — Схема использования оптического пинцета в изучении РНК полимеразы Оптический пинцет (англ. Optical tweezers), иногда «лазерный пинцет» или «оптическая ловушка» научный прибор, который позволяет манипулировать микроскопическими объектами с помощью …   Википедия

• Лазерные щипцы — Схема использования оптического пинцета в изучении РНК полимеразы Оптический пинцет (англ. Optical tweezers), иногда «лазерный пинцет» или «оптическая ловушка» научный прибор, который позволяет манипулировать микроскопическими объектами с помощью …   Википедия

• Оптический пинцет — Схема использования оптического пинцета в изучении РНК полимеразы Оптический пинцет (англ.&# …   Википедия