US 12,117,530 B2
Ultrafast laser beam steering using frequency-arrayed optics
Amr Mohammad E. A. Shaltout, Stanford, CA (US); Vladimir M. Shalaev, West Lafayette, IN (US); and Mark L. Brongersma, Redwood City, CA (US)
Assigned to Purdue Research Foundation, West Lafayette, IN (US); and THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY, Stanford, CA (US)
Filed by Purdue Research Foundation, West Lafayette, IN (US); and THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY, Stanford, CA (US)
Filed on Jul. 4, 2023, as Appl. No. 18/218,073.
Application 18/218,073 is a division of application No. 16/605,902, granted, now 11,698,460, previously published as PCT/US2018/027945, filed on Apr. 17, 2018.
Claims priority of provisional application 62/486,433, filed on Apr. 17, 2017.
Prior Publication US 2024/0183985 A1, Jun. 6, 2024
Int. Cl. G01S 7/48 (2006.01); G01S 7/481 (2006.01); G01S 17/89 (2020.01)
CPC G01S 17/89 (2013.01) [G01S 7/4814 (2013.01); G01S 7/4817 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A laser beam steering system, comprising:
a laser source which produces a pulsed laser light beam with a frequency comb spectrum;
a first metasurface configured to i) directly receive the pulsed laser and ii) directly generate a diffracted pulsed laser output at different frequencies with a beam at a center frequency normal to the first metasurface; and
a second metasurface configured to i) directly receive the diffracted pulsed laser output and ii) to focus onto different foci at a focal plane, light propagating from the focal plane leads to generation of one or more optical beams that are controlled in space and time.