公开(公告)号：US20240369404A1

公开(公告)日：2024-11-07

申请号：US18651161

申请日：2024-04-30

Applicant: Purdue Research Foundation

Inventor： Vladimir M. SHALAEV ,  Alexandra BOLTASSEVA ,  Colton B. FRUHLING ,  Mustafa Goksu OZLU

IPC: G01J1/04 ,  G01J1/44 ,  H04N25/71 ,  H04N25/76

Abstract: A streak camera is disclosed which includes an entrance slit forming a first end of the streak camera, the entrance slit having a width and height, an image capture device forming a second send of the streak camera, and an epsilon-near-zero (ENZ) slab defined by a bandgap energy and plasma frequency disposed within the streak camera, the ENZ slab configured to receive two beams with a predetermined delay therebetween, the two beams include i) a witness beam through the entrance slit at an incident angle θ, and ii) a trigger beam at substantially a normal incident angle, wherein the trigger beam applies energy at a level below the bandgap energy of the ENZ slab to thereby modify refractive index of the ENZ slab, and thus generate a modified witness beam at a time-varying exit angle φ(t) onto the image capture device.