Patent ID: 9677936
Date: 2017-06-13
CPC Classifications: B82Y,G01J,G01N,Y10S

Claim:
1. A spectro-sensor comprising: a nano antenna array comprising a first nano antenna and at least a second nano antenna that have different respective resonance wavelength bands; and an optical detector array comprising a first optical detector and at least a second optical detector that respectively detect light from the first nano antenna and the second nano antenna, wherein each of the first nano antenna and the at least the second nano antenna comprises: a respective upper nano-structure layer that has a first stacked structure in which a first dielectric layer that has a first refractive index and a second dielectric layer that has a second refractive index that is higher than the first refractive index are alternately stacked along a first direction, and a respective first plurality of nano holes formed to pass through the first stacked structure; a respective lower nano-structure layer which has a second stacked structure in which a third dielectric layer that has a third refractive index and a fourth dielectric layer that has a fourth refractive index that is higher than the third refractive index are alternately stacked along the first direction, and a respective second plurality of nano holes formed to pass through the second stacked structure; and a respective intermediate layer of dielectric material disposed between the corresponding upper nano-structure layer and the corresponding lower nano-structure layer.