US 12,332,418 B2
Photonic resonator interferometric scattering microscopy
Brian T. Cunningham, Champaign, IL (US); Nantao Li, Champaign, IL (US); Taylor D. Canady, Champaign, IL (US); Qinglan Huang, Santa Clara, CA (US); and Xing Wang, Champaign, IL (US)
Assigned to THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS, Urbana, IL (US)
Appl. No. 18/263,749
Filed by THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS, Urbana, IL (US)
PCT Filed Feb. 3, 2022, PCT No. PCT/US2022/015023
§ 371(c)(1), (2) Date Aug. 1, 2023,
PCT Pub. No. WO2022/169926, PCT Pub. Date Aug. 11, 2022.
Claims priority of provisional application 63/188,923, filed on May 14, 2021.
Claims priority of provisional application 63/146,114, filed on Feb. 5, 2021.
Prior Publication US 2024/0094517 A1, Mar. 21, 2024
Int. Cl. G02B 21/00 (2006.01)
CPC G02B 21/0056 (2013.01) [G02B 21/008 (2013.01)] 52 Claims
OG exemplary drawing
 
1. A method, comprising:
directing incident light onto a surface of a photonic crystal (PC), wherein the incident light has a wavelength that couples into a photonic crystal guided resonance (PCGR) mode of the PC such that less than 1% of the incident light is transmitted through the PC as transmitted light, and wherein one or more particles are adjacent to the surface of the PC and scatter a portion of the light coupled into the PCGR mode as scattered light; and
forming an image that comprises a pattern of constructive and destructive interference between the transmitted light and the scattered light.