Patent ID: 8155487
Filing Date: 2012-04-10
Classification: G01N,G02B

Abstract:
1. A sensor element comprising: a light input configured to receive input light, a sample chamber configured to accommodate a sample; and at least one polymer waveguide optically coupling the light input with the sample chamber, the at least one polymer waveguide comprising a first contact portion and a second contact portion, wherein at least a portion of the second contact portion is arranged in the sample chamber; wherein the second contact portion has a different structure than the first contact portion so that a change of the light intensity of the input light passing through the second contact portion may be caused due to an interaction between the input light passing through the second contact portion and the sample, wherein the change of the light intensity of the input light passing through the second contact portion is different from the change of the light intensity of the input light passing through the first contact portion; wherein the second contact portion is configured so as to allow an increased interaction between the input light and the sample as compared to the first contact portion; and wherein the second contact portion comprises at least two shaped portions positioned along a common axis, each shaped portion separated by a gap.