Arrays of integrated analytical devices
Arrays of integrated analytical devices and their methods for production are provided. The arrays are useful in the analysis of highly multiplexed optical reactions in large numbers at high densities, including biochemical reactions, such as nucleic acid sequencing reactions. The devices allow the highly sensitive discrimination of optical signals using features such as spectra, amplitude, and time resolution, or combinations thereof. The devices include an integrated diffractive beam shaping element that provides for the spatial separation of light emitted from the optical reactions.
1. An array of integrated analytical devices, each device comprising:
a nanoscale emission volume;
a detector layer optically coupled to the nanoscale emission volume;
a diffractive beam shaping element disposed between the nanoscale emission volume and the detector layer; and
a color filtration layer disposed between the diffractive beam shaping element and the detector layer, wherein the color filtration layer comprises 2 to 9 color filtration elements, each color filtration element specific for a range of light wavelengths;
wherein light is emitted from the nanoscale emission volume by a plurality of emitters within the emission volume;
wherein the detector layer comprises a plurality of sensing regions, and wherein the sensing regions are optically coupled to the color filtration elements; and
wherein the diffractive beam shaping element spatially separates the light emitted from the nanoscale emission volume into a plurality of beams and directs the spatially-separated light beams through the color filtration elements and onto the sensing regions.
2. The array of claim 1 wherein the number of color filtration elements, sensing regions, and separated beams per integrated analytical device is 2.
3. The array of claim 1 wherein the plurality of emitters is 4 emitters.
4. The array of claim 1 , wherein the diffractive beam shaping element is a hybrid lens.
5. The array of claim 1 , wherein the diffractive beam shaping element comprises a Fresnel lens.
6. The array of claim 1 , wherein the color filtration elements are dichroic filters.
7. The array of claim 1 , wherein the color filtration elements are thin-film interference filters.
8. The array of claim 1 , further comprising:
an excitation source optically coupled to the nanoscale emission volume.
9. The array of claim 8 , further comprising:
at least one aperture layer disposed between the excitation source and the detector layer.
10. The array of claim 8 , further comprising:
a laser rejection filter layer disposed between the excitation source and the detector layer.
11. The array of claim 10 , wherein the laser rejection filter layer is disposed between the color filtration layer and the detector layer.
12. The array of claim 8 , wherein the array comprises 2 color filtration elements, 2 sensing regions, and 2 separated beams per integrated analytical device.
13. The array of claim 12 , wherein the nanoscale emission volume is aligned directly above the excitation source.
14. The array of claim 12 , wherein the excitation source is a waveguide excitation source, and wherein the sensing regions are not collinear with respect to the waveguide excitation source.
15. The array of claim 12 , wherein the excitation source is a waveguide excitation source, and wherein the sensing regions are perpendicular with respect to the waveguide excitation source.
16. The array of claim 12 , comprising a plurality of waveguide excitation sources, optically coupled to a plurality of nanoscale emission volumes.
17. The array of claim 16 , wherein the plurality of waveguide excitation sources are oriented parallel to one another.
18. The array of claim 17 , wherein the plurality of nanoscale emission volumes are aligned directly above the plurality of waveguide excitation sources.
19. The array of claim 18 , wherein the nanoscale emission volumes are arranged in a regular grid pattern.
20. The array of claim 18 , wherein the nanoscale emission volumes are arranged in an offset grid pattern.
21. The array of claim 18 , wherein the sensing regions are not collinear with respect to the waveguide excitation sources.
22. The array of claim 21 , wherein the sensing regions are perpendicular with respect to the waveguide excitation sources.
23. The array of claim 1 , wherein the diffractive beam shaping element collimates the light emitted from the emission volume.
24. The array of claim 1 , wherein the detector layer is part of a CMOS sensor.
25. The array of claim 1 , further comprising an analyte disposed within the nanoscale emission volume, wherein the analyte comprises a biological sample.
26. The array of claim 25 , wherein the biological sample comprises a nucleic acid and a polymerase enzyme.
27. The array of claim 1 , wherein the array comprises at least 1,000, at least 10,000, at least 100,000, at least 1,000,000, or at least 10,000,000 nanoscale emission volumes.