A Composite Structure Realizing Fluorescence Directional Far-field Emission of Fluorescent Substances
A fluorescent substance, fluorescent orientation technology, applied in fluorescence/phosphorescence, material excitation analysis, material analysis by optical means, etc., can solve the problems of unfavorable collection, low sensitivity, low fluorescence enhancement multiples, etc.
Active Publication Date: 2022-04-15
TAIYUAN UNIV OF TECH
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Problems solved by technology
For example, the gold groove structure, but the emission of fluorescence is relatively scattered, which is not conducive to collection
However, Jiseok Lim et al. increased the fluorescence emission by combining the microlens and the metal channel structure, but the fluorescence enhancement factor was not high, and its sensitivity was not high.
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[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present invention, rather than All the embodiments; based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work all belong to the protection scope of the present invention.
[0026] Such as Figure 1~2 As shown, the embodiment of the present invention provides a composite structure for realizing fluorescent directional far-field emission of fluorescent substances, including a glass substrate 101, a metal film 102 with a thickness greater than or equal to 100 nm coated on the glass substrate 101, and the metal film 102 A semicircular tube 103 is arranged above, and a fishtail-shaped lens ...
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Abstract
The present invention designs a composite structure capable of realizing fluorescent directional far-field emission of fluorescent substances, including a glass substrate coated with a metal film with a thickness greater than or equal to 100 nm, and a semicircular tube is arranged above the metal film. A fishtail-shaped lens that closely fits the outer diameter of the semicircular tube is arranged at the center of the arc above the semicircular tube, and the semicircular tube is filled with a solution mixed with fluorescent substances. In the present invention, the light emitted by the fluorescent substance is reflected by the metal film and converged by the lens, and then emitted from above the lens. The present invention can realize directional far-field emission of fluorescence of the fluorescent substance, and can be widely used in the field of fluorescence detection.
Description
technical field [0001] The invention relates to a composite structure of a micron-sized semicircular tube and a fishtail lens, in particular to a structure in an application for realizing fluorescent substance directional far-field emission. Background technique [0002] Fluorescence detection has the advantages of simple operation and high sensitivity, and can be widely used in many fields such as biosensing, environmental detection, and chemical analysis. With the continuous development of fluorescence detection technology, fluorescence detection requires higher and higher sensitivity of fluorescence, and the sensitivity of fluorescence is related to the luminous intensity of fluorescence. Therefore, the enhancement of fluorescence sensitivity can be achieved by enhancing the fluorescence intensity. [0003] The micro-nano structure can increase the luminous intensity of fluorescence. Studies have shown that the enhancement of fluorescence luminous intensity is achieved ...
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Login to View More IPC IPC(8): G01N21/64G01N21/01
CPCG01N21/6402G01N21/01
Inventor 陈智辉董林秀孙非杨毅彪费宏明刘欣
Owner TAIYUAN UNIV OF TECH