US 11,835,842 B2
Processor-controlled high harmonic optimization with optimal gas handling
Seth Lucien Cousin, Boulder, CO (US); Michael Tanksalvala, Longmont, CO (US); and Henry C Kapteyn, Boulder, CO (US)
Assigned to Regents of the Univ of Colorado, a body corporate, Denver, CO (US)
Appl. No. 17/603,233
Filed by KAPTEYN MURNANE LABORATORIES, INC., Boulder, CO (US)
PCT Filed Apr. 13, 2020, PCT No. PCT/US2020/027908
§ 371(c)(1), (2) Date Oct. 12, 2021,
PCT Pub. No. WO2020/210787, PCT Pub. Date Oct. 15, 2020.
Claims priority of provisional application 62/833,080, filed on Apr. 12, 2019.
Prior Publication US 2022/0187679 A1, Jun. 16, 2022
Int. Cl. G02F 1/35 (2006.01); G02B 27/28 (2006.01); G02F 1/355 (2006.01); G02F 1/365 (2006.01)
CPC G02F 1/3503 (2021.01) [G02B 27/281 (2013.01); G02F 1/353 (2013.01); G02F 1/354 (2021.01); G02F 1/3555 (2013.01); G02F 1/365 (2013.01); G02F 2201/02 (2013.01); G02F 2201/58 (2013.01); G02F 2203/07 (2013.01); G02F 2203/48 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An apparatus for high harmonic generation (HHG) comprising:
a polarized ultrashort pulse laser source;
an HHG assembly comprising a gas distribution block and a waveguide cartridge having a HHG hollow core waveguide, the waveguide cartridge removeably attached to the gas distribution block, and the gas distribution block configured to maintain a pressure profile within the HHG hollow core waveguide;
two operating beam sensors;
two actuatable mirrors, and a processor configured to communicate with the operating beam sensors and automatically and repeatedly adjust the actuatable mirrors while the apparatus is operating such that a beam from the ultrashort pulse laser source is directed into the HHG hollow core waveguide;
wherein the HHG assembly is fixed in place with respect to the two operating beam sensors during operation.