Biosensor device
View Patent ↗Provided is a biosensor device. The biosensor device includes a light source configured to generate source light, a photodetector configured to detect the source light, and a sample box accommodating a biomaterial that receives the source light to generate structured light beam from the source light. The sample box may include a substrate, a spacer on an edge of the substrate, a cover plate on the spacer, and a lower metamaterial pattern disposed on a top surface of the substrate.
1. A biosensor device comprising:
a light source configured to generate source light;
a photodetector configured to detect the source light; and
a sample box accommodating a biomaterial that receives the source light to generate structured light beam from the source light,
wherein the sample box comprises:
a substrate;
a spacer on an edge of the substrate;
a cover plate on the spacer;
a lower metamaterial pattern disposed on a top surface of the substrate;
a lower lattice pattern disposed in the substrate under the lower metamaterial pattern, the lower lattice pattern having a width and an interval wider than those of the lower metamaterial pattern; and
a lower polarization pattern provided on a bottom surface of the substrate, the lower polarization pattern having a width and an interval wider than those of the lower lattice pattern.
2. The biosensor device of claim 1 , wherein the sample box further comprises an upper metamaterial pattern facing the lower metamaterial pattern and provided on a bottom surface of the cover plate.
3. The biosensor device of claim 2 , wherein each of the lower metamaterial pattern and the upper metamaterial pattern has a width or interval of about 10 nanometers to about 400 nanometers.
4. The biosensor device of claim 2 , wherein each of the lower metamaterial pattern and the upper metamaterial pattern has a stacked structure of a metal and a dielectric.
5. The biosensor device of claim 1 , wherein the sample box further comprises an upper polarization pattern provided on a top surface of the cover plate.
6. The biosensor device of claim 5 , wherein each of the lower polarization pattern and the upper polarization pattern has a width or interval of about 700 nanometers to about 100 nanometers.
7. The biosensor device of claim 5 , wherein the sample box further comprises an upper lattice pattern disposed in the cover plate between the upper polarization pattern and the upper meta-material pattern.
8. The biosensor device of claim 7 , wherein each of the lower lattice pattern and the upper lattice pattern has a width or interval of about 400 nanometers to about 700 nanometers.
9. A biosensor device comprising:
a light source configured to generate source light;
a photodetector configured to detect the source light; and
a sample box accommodating a biomaterial that receives the source light to generate structured light beam from the source light,
wherein the sample box comprises:
a substrate;
a lower metamaterial pattern on a top surface of the substrate;
a spacer disposed around the lower metamaterial pattern and provided on an edge of the substrate;
a cover plate configured to cover the lower metamaterial pattern and provided on the spacer;
a lower lattice pattern disposed in the substrate under the lower metamaterial pattern, the lower lattice pattern having a width and an interval wider than those of the lower metamaterial pattern;
a lower polarization pattern provided on a bottom surface of the substrate, the lower polarization pattern having a width and an interval wider than those of the lower lattice pattern; and
an upper metamaterial pattern facing the lower metamaterial pattern and provided on a bottom surface of the cover plate.
10. The biosensor device of claim 9 , wherein the sample box further comprises:
a lower polarization pattern on a bottom surface of the substrate; and
an upper polarization pattern on a top surface of the cover plate.
11. The biosensor device of claim 10 , wherein the sample box further comprises:
a lower lattice pattern disposed in the substrate between the lower polarization pattern and the lower metamaterial pattern; and
an upper lattice pattern disposed in the cover plate between the upper polarization pattern and the upper metamaterial pattern.
12. A biosensor device comprising:
a light source configured to generate source light;
a photodetector configured to detect the source light; and
a sample box accommodating a biomaterial that receives the source light to generate structured light beam from the source light,
wherein the sample box comprises:
a substrate;
a lower metamaterial pattern on a top surface of the substrate;
a lower lattice pattern disposed in the substrate under the lower metamaterial pattern, the lower lattice pattern having a width and an interval wider than those of the lower metamaterial pattern;
a lower polarization pattern provided on a bottom surface of the substrate, the lower polarization pattern having a width and an interval wider than those of the lower lattice pattern;
a spacer disposed around the lower metamaterial pattern and provided on an edge of the substrate;
a cover plate configured to cover the lower metamaterial pattern and provided on the spacer;
an upper metamaterial pattern on a bottom surface of the cover plate;
an upper polarization pattern on a top surface of the cover plate, the upper polarization pattern having a width and an interval wider than those of the upper metamaterial pattern; and
an upper lattice pattern disposed in the cover plate between the upper polarization pattern and the upper metamaterial pattern, the upper lattice pattern having a width and an interval wider than those of the upper metamaterial pattern, and narrower than those of upper polarization pattern.
13. The biosensor device of claim 12 , wherein each of the lower polarization pattern and the upper polarization pattern comprises ITO.
14. The biosensor device of claim 12 , wherein each of the lower metamaterial pattern and the upper metamaterial pattern has a stacked structure of a metal and a dielectric.
15. The biosensor device of claim 12 , wherein each of the lower lattice pattern and the upper lattice pattern comprises defects or a semiconductor in the substrate or the cover plate.