US 11,997,934 B2
Laser-written submicron pixels with tunable circular polarization and write-read-erase-reuse capability on a nano material or two-dimensional heterostructure at room temperature
Zachariah B. Hennighausen, Mount Rainier, MD (US); Kathleen M. McCreary, Washington, DC (US); Olaf M. J. van 't Erve, Falls Church, VA (US); and Berend T. Jonker, Davidsnville, MD (US)
Assigned to The Government of the United States of America, as represented by the Secretary of the Navy, Arlington, VA (US)
Filed by The Government of the United States of America, as represented by the Secretary of the Navy, Arlington, VA (US)
Filed on Mar. 9, 2022, as Appl. No. 17/690,263.
Claims priority of provisional application 63/317,925, filed on Mar. 8, 2022.
Claims priority of provisional application 63/187,565, filed on May 12, 2021.
Prior Publication US 2022/0367798 A1, Nov. 17, 2022
Int. Cl. H10N 70/20 (2023.01); B82Y 10/00 (2011.01); B82Y 20/00 (2011.01); B82Y 40/00 (2011.01); G11C 7/00 (2006.01); H10N 70/00 (2023.01)
CPC H10N 70/257 (2023.02) [B82Y 10/00 (2013.01); B82Y 20/00 (2013.01); B82Y 40/00 (2013.01); G11C 7/005 (2013.01); H10N 70/023 (2023.02); H10N 70/8613 (2023.02); H10N 70/8825 (2023.02); H10N 70/883 (2023.02)] 19 Claims
OG exemplary drawing
 
1. A method of laser-writing submicron pixels with tunable circular polarization and write-read-erase-reuse capability on a nano-material or two-dimensional heterostructure at room temperature, comprising the steps of:
applying a laser to a nano-material or two-dimensional heterostructure;
writing a submicron pixel;
wherein the submicron pixel has a circular polarization;
modifying the circular polarization;
allowing the circular polarization to be tuned across a range of 39.9%;
tuning photoluminescence intensity across a factor of 161 times; and
tuning photoluminescence peak position across a range of 38 meV.