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Detection apparatus utilizing surface plasma resonance effect

A technology of surface plasmon and resonance effect, which is applied in measurement devices, phase influence characteristic measurement, material analysis by optical means, etc. Effect

Inactive Publication Date: 2011-11-09
徐坴晖
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the manufacturing accuracy of the parabolic mirror has a great influence on the detection accuracy of the detection device using the surface plasmon resonance effect, but a high-precision parabolic mirror is not easy to manufacture, so this detection device using the surface plasmon resonance effect needs High cost, so it cannot be widely used

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  • Detection apparatus utilizing surface plasma resonance effect
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  • Detection apparatus utilizing surface plasma resonance effect

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Embodiment Construction

[0036] In order to make the above-mentioned purposes, features and advantages of the present invention clearly understandable, the preferred embodiments of the present invention are specifically cited below, and in conjunction with the accompanying drawings, the detailed description is as follows:

[0037] The present invention uses the connecting rod platform to carry the components for detecting surface plasma waves, and because most of the pivot joints of the traditional connecting rod mechanism use the cooperation of pins and holes or balls and sockets to make the rods produce single-dimensional or multi-dimensional relative rotational motion , but in a small-sized linkage mechanism, it is not easy to control the precision of the gap between the pin and the hole or between the ball and the ball socket. Therefore, the present invention proposes a flexible linkage platform, which provides rotation freedom in the form of material deformation Therefore, it is not necessary to c...

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Abstract

The invention discloses a detection apparatus utilizing surface plasma resonance (SPR) effect. The detection apparatus comprises a flexible connecting rod platform, a light source set, a triple prism, a metal film and a light detection unit. A free end of an input rod of the flexible connecting rod platform is suitable for linear movements, such that an output rod is driven to rotate. The light source set rotates with the output rod, such that an incidence angle of a polarized light from the light source radiated on the triple prism is changed. The metal film is arranged on the lower surface of the triple prism. The object requiring detecting is arranged on a metal film surface which does not contact the triple prism. The polarized light is radiated to the metal film through the triple prism, and is reflected by the metal film. The light detection unit is used for detecting a light intensity of an emergent light of the polarized light reflected by the metal film through the triple prism. When the detected light intensity is zero, the incidence angle of the polarized light is the resonance angle of the object requiring detection.

Description

【Technical field】 [0001] The invention relates to a detector and its carrying platform, in particular to a detection device utilizing surface plasma resonance effect. 【Background technique】 [0002] Surface Plasmon Resonance (SPR) is an optical phenomenon that exists between metals and dielectrics. In 1982, after Nylander and Leidberg used the SPR phenomenon to make gas detection and biochemical sensors, SPR biochemical sensors gradually attracted the attention of the scientific community. Due to the good affinity of SPR biosensors, which can allow timely analysis without any labeling of biomolecules, SPR biosensors have gradually become the main equipment of biological detection instruments. [0003] The above sensor uses the surface plasmon resonance effect to detect the characteristics of trace substances on the surface of the metal film, and the detection method is to shoot a light from the dielectric to the surface of the metal film, when the light generates a total re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/43G01N21/01
Inventor 徐坴晖
Owner 徐坴晖
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