EVANESCENT WAVE SENSOR SHELL AND APPARATUS

An evanescent wave sensor for use in analyzing a medium, the sensor including a shell having a radiation port at a first end and a base at a second end. The base has a dimension greater than that of the radiation port, and inner and outer wall surfaces of the shell extend between the radiation port...

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Bibliographische Detailangaben
Hauptverfasser:	LOVE, WALTER F, SLOVACEK, RUDOLF E
Format:	Patent
Sprache:	eng
Schlagworte:	APPLICATIONS OF SCANNING-PROBE TECHNIQUES, e.g. SCANNING PROBEMICROSCOPY [SPM] INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS SCANNING-PROBE TECHNIQUES OR APPARATUS TESTING
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Beschreibung
Zusammenfassung:	An evanescent wave sensor for use in analyzing a medium, the sensor including a shell having a radiation port at a first end and a base at a second end. The base has a dimension greater than that of the radiation port, and inner and outer wall surfaces of the shell extend between the radiation port and the base. The shell is formed of a material having an index of refraction greater than that of the medium. An apparatus and method for analyzing the medium using the sensor may include a receptacle which defines a chamber about a portion of the shell for contacting the medium to the shell for analysis, optical elements for guiding radiation from a radiation source to the radiation port, and optical elements for guiding fluorescent radiation from the shell to a detector of fluorescent radiation.