US 12,321,048 B2
Method and system for time-domain integration of broadband terahertz pulses
Alessandro Tomasino, Montréal (CA); Giacomo Balistreri, Longueuil (CA); Junliang Dong, Longueuil (CA); Yoann Jestin, Montréal (CA); Aycan Yurtsever, Longueuil (CA); José Azaña, Montréal (CA); and Roberto Morandotti, Montréal (CA)
Assigned to INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Québec (CA)
Filed by INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Québec (CA)
Filed on Sep. 2, 2021, as Appl. No. 17/446,801.
Claims priority of provisional application 63/078,095, filed on Sep. 14, 2020.
Prior Publication US 2022/0082872 A1, Mar. 17, 2022
Int. Cl. G02F 1/01 (2006.01); H01P 3/10 (2006.01)
CPC G02F 1/0121 (2013.01) [H01P 3/10 (2013.01); G02F 2203/13 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A waveguide for time-domain integration of THz pulses, comprising two wires extending from an input gap gin to an output gap gout at a tapering angle θ relative to a longitudinal axis, a gap of the waveguide decreasing linearly from the input gap gin to the output gap gout, wherein a size of the output gap is at least one order of magnitude smaller than a central wavelength λTHz in a spectrum of the THz pulses.