Sensor for detecting a target substance in a fluid
First Claim
1. A device for detecting a target substance in a fluid, comprising a periodic structure having a vacant portion for passing a fluid containing the target substance and a solid portion capable of transmitting an electromagnetic wave arranged regularly to form a periodic distribution of a refractive index for the electromagnetic wave, an electromagnetic wave-projecting means for projecting the electromagnetic wave to the periodic structure, and a detecting means for measuring the magnetic wave emitted from the periodic structure to detect a change in the periodic distribution of the refractive index.
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Accused Products
Abstract
A device for detecting a target substance in a fluid is provided. This device comprises a periodic structure having a vacant portion for passing the fluid containing the target substance and a solid portion arranged regularly and capable of transmitting an electromagnetic wave, an electro-magnetic wave-projecting means for projecting the electromagnetic wave to the periodic structure, and a detecting means for measuring the magnetic wave emitted from the periodic structure to detect a change in periodic distribution of a refractive index. This sensor is highly sensitive in a small size.
96 Citations
31 Claims
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1. A device for detecting a target substance in a fluid, comprising
a periodic structure having a vacant portion for passing a fluid containing the target substance and a solid portion capable of transmitting an electromagnetic wave arranged regularly to form a periodic distribution of a refractive index for the electromagnetic wave, an electromagnetic wave-projecting means for projecting the electromagnetic wave to the periodic structure, and a detecting means for measuring the magnetic wave emitted from the periodic structure to detect a change in the periodic distribution of the refractive index.
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13. A device for detecting a target substance in a fluid, comprising
a flow path for passing a fluid containing the target substance, a periodic structure placed at least a portion of the flow path and having a vacant portion for passing the fluid containing the target substance and a solid portion capable of transmitting an electromagnetic wave arranged regularly to form a periodic distribution of a refractive index for the electromagnetic wave, an electromagnetic wave-projecting means for projecting the electromagnetic wave to the periodic structure, and a detecting means for measuring the magnetic wave emitted from the periodic structure to detect a change in the periodic distribution of a refractive index.
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18. A device for detecting plural target substances in a fluid, comprising
a flow path for passing a fluid containing the target substances; -
plural periodic structures each of which is placed at least a portion of the flow path and has a vacant portion for passing the fluid containing the target substances and a solid portion capable of transmitting an electromagnetic wave arranged regularly to form a periodic distribution of a refractive index for the electromagnetic wave, an electromagnetic wave-projecting means for projecting the electromagnetic wave to the periodic structures, and a detecting means for measuring the magnetic wave emitted from the periodic structures to detect a change in the periodic distribution of the refractive index. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A device for detecting a target substance in a fluid, comprising
an optical fiber having plural holes for passing the fluid containing the target substance and a solid portion capable of transmitting an electromagnetic wave to form a refractive index distribution in the radius direction, an electromagnetic wave-introducing means for introducing the electromagnetic wave to the optical fiber, and a detecting means for measuring the magnetic wave emitted from the optical fiber in the radius direction to detect a change in a refractive index.
Specification