Patent SG-11201808772W-A (SG)
Title: Meta-lenses for sub-wavelength resolution imaging
Inventor: CAPASSO FEDERICO
IPC: G02B5/18
Filed: 2017-04-05
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property -, Organization 11M1111101110101011111 HO 11111 0111010 11111111E13011111111111110111111 International Bureau ... ...... ..... ...,/ (10) International Publication Number (43) International Publication Date WO 2017/176921 Al 12 October 2017(12.10.2017) WIPO I PCT (51) International Patent Classification: Center 727E, Cambridge, Massachusetts 02138 (US). GO2B 1/00 (2006.01) G02B 5/18 (2006.01) MISHRA, Ishan; c/o Harvard University, Office of Tech GO2B 3/02 (2006.01) Dev, 1350 Massachusetts Avenue, Smith Campus Center 727E, Cambridge, Massachusetts 02138 (US). (21) International Application Number: PCT/US2017/026206 (74) Agents: LIU, Cliff et al.; Foley & Lardner LLP, 3000 K Street NM., Suite 600, Washington, District of Columbia (22) International Filing Date: 20007-5109 (US). 5 April 2017 (05.04.2017) (81) Designated States (unless otherwise indicated, for every (25) Filing Language: English kind of national protection available): AE, AG, AL, AM, (26) Publication Language: English AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, (30) Priority Data: DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, 62/318,649 5 April 2016 (05.04.2016) US HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, 62/397,854 21 September 2016 (21.09.2016) US KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, (71) Applicant: PRESIDENT AND FELLOWS OF HAR- MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, VARD COLLEGE [US/US]; 17 Quincy Street, Cam- NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, bridge, Massachusetts 02138 (US). RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, (72) Inventors: CAPASSO, Federico; c/o Harvard University, ZA, ZM, ZW. Office of Tech Dev, 1350 Massachusetts Avenue, Smith _ Campus Center 727E, Cambridge, Massachusetts 02138 (84) Designated States (unless otherwise indicated, for every — (US). CHEN, Wei Ting; c/o Harvard University, Office of kind of regional protection available): ARIPO (BW, GH, _ Tech Dev, 1350 Massachusetts Avenue, Smith Campus GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, 5Z, Center 727E, Cambridge, Massachusetts 02138 (US). TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, = DEVLIN, Robert, Charles; c/o Harvard University, Office TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, of Tech Dev, 1350 Massachusetts Avenue, Smith Campus DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, = Center 727E, Cambridge, Massachusetts 02138 (US). LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, KHORASANINEJAD, Mohammadreza; c/o Harvard SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, = GW, KM, ML, MR, NE, SN, TD, TG). University, Office of Tech Dev, 1350 Massachusetts Aven- = ue, Smith Campus Center 727E, Cambridge, Massachusetts Declarations under Rule 4.17: 02138 (US). OH, Jaewon; c/o Harvard University, Office of Tech Dev, 1350 Massachusetts Avenue, Smith Campus as to the applicant's entitlement to claim the priority of the Center 727E, Cambridge, Massachusetts 02138 (US). earlier application (Rule 4.17(iii)) = ZHU, Alexander; c/o Harvard University, Office of Tech Published: _ Dev, 1350 Massachusetts Avenue, Smith Campus Center = 727E, Cambridge, Massachusetts 02138 (US). ROQUES- with international search report (Art. 21(3)) = CARMES, Charles; c/o Harvard University, Office of = Tech Dev, 1350 Massachusetts Avenue, Smith Campus = = = (54) Title: META-LENSES FOR SUB-WAVELENGTH RESOLUTION IMAGING = .4 1-1 ei A -- oc Oro A a, • 4. - -102 tz. ,tD FIG. lA IN ,-, IN 1-1 (57) : A meta-lens having a phase profile includes a substrate and a plurality of nanostructures disposed on the substrate. 0 Each individual nanostructure of the nanostructures imparts a light phase shift that varies depending on a location of the individual \" nanostructure on the substrate. The light phase shifts of the nanostructures define the phase profile of the meta-lens. The varying 0 light phase shifts can be realized by, e.g., changing orientations of nanofins or changing diameters of nanopillars.