SPR sensor cell and SPR sensor
First Claim
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1. An SPR sensor cell, comprising:
- an under-cladding layer;
a core layer formed so that at least a part of the core layer is adjacent to the under-cladding layer and having a light entrance and a light exit; and
a metal layer covering a predetermined length of the core layer,wherein a sectional area (S1) of the core layer at the light entrance and a sectional area (S2) of the core layer at the predetermined length covered by the metal layer satisfy a relationship of S1×
0.5≧
S2, anda sectional shape and area of the core layer at the sectional area (S2) covered by the metal layer is constant across the predetermined length of the core layer.
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Abstract
There are provided an SPR sensor cell and an SPR sensor having a very excellent detection sensitivity. The SPR sensor cell of the present invention includes: an under-cladding layer; a core layer formed so that at least a part of the core layer is adjacent to the under-cladding layer and having a light entrance and a light exit; and a metal layer covering a part of the core layer. A sectional area (S1) of the core layer at the light entrance and a sectional area (S2) of the core layer at the part covered by the metal layer satisfy a relationship of S1>S2.
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Citations
5 Claims
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1. An SPR sensor cell, comprising:
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an under-cladding layer; a core layer formed so that at least a part of the core layer is adjacent to the under-cladding layer and having a light entrance and a light exit; and a metal layer covering a predetermined length of the core layer, wherein a sectional area (S1) of the core layer at the light entrance and a sectional area (S2) of the core layer at the predetermined length covered by the metal layer satisfy a relationship of S1×
0.5≧
S2, anda sectional shape and area of the core layer at the sectional area (S2) covered by the metal layer is constant across the predetermined length of the core layer. - View Dependent Claims (2, 3, 4, 5)
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Specification