The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 18, 2020
Filed:
Aug. 06, 2019
Pécsi Tudományegyetem, Pécs, HU;
János Hebling, Pécs, HU;
Gábor Almási, Kozármisleny, HU;
László Pálfalvi, Pécs, HU;
József András Fülöp, Pécs, HU;
Gergõ Krizsán, Pécs, HU;
Pécsi Tudományegyetem, Pécs, HU;
Abstract
A pump beam () is pre-tilted by subjecting the pump beam to pulse-front-tilting, the thus obtained tilted-pulse-front pump beam is then coupled into the nonlinear optical medium. THz radiation is generated in the optical medium by nonlinear optical processes, in particular by optical rectification, by the pump beam. A pulse-front-tilt of the pump beam satisfying the velocity matching condition of vcos(γ)=vis induced as a sum of a plurality of pulse-front-tilts separately induced as a partial pulse-front-tilt of the pump beam in subsequent steps. The last step of pulse-front-tilting of the pump beam is performed by coupling the pump beam into the nonlinear optical medium through a stair-step structure () formed in an entry surface () of the nonlinear optical medium which forms an angle (Γ) of a given non-zero size with an exit surface () of said nonlinear optical medium.