Jack K Hu

US Patent:

20220364982, Nov 17, 2022

Filed:

Nov 8, 2020

Appl. No.:

17/769849

Inventors:

- Stanford CA, US
Jack Hu - Stanford CA, US
Michelle Solomon - Cotuit MA, US
Mark Lawrence - Saint Louis MO, US

International Classification:

G01N 21/21

Abstract:

A device for detecting optical chirality includes a metasurface composed of a biperiodic array of nanodisks in the form of a checkerboard array [], where the nanodisks have diameters dΔ/2 such that adjacent nanodisks [] have diameters that differ by an offset Δ. The nanodisks are composed of a dielectric material that is transparent and has a refractive index greater than 2 at a predetermined operational ultraviolet wavelength. The nanodisks have a width-to-height aspect ratio d/h tuned to produce spectral overlap of electric dipole and magnetic dipole modes of incident circularly polarized ultraviolet light.

US Patent:

20200361897, Nov 19, 2020

Filed:

Feb 24, 2020

Appl. No.:

16/799697

Inventors:

- Stanford CA, US
Chi-Sing Ho - Stanford CA, US
Aitzol Imanol Garcia Echarri - Gipuzkoa, ES
Michelle L. Solomon - Stanford CA, US
Jack Hu - Stanford CA, US

International Classification:

C07D 401/12
C07D 211/34
C07C 45/85
C07C 51/487
C07C 213/10

Abstract:

Methods and devices are disclosed for selective photo-destruction of one chiral enantiomer of a compound using nanostructures by enhancing differential absorption of circularly polarized light by the one chiral enantiomer. Methods and devices are disclosed for selective enrichment of one chiral enantiomer of a compound using nanostructures by enhancing differential absorption of circularly polarized light by the one chiral enantiomer. The nanostructures support optical frequency electric resonances and optical frequency magnetic resonances.