公开(公告)号：US20250020511A1

公开(公告)日：2025-01-16

申请号：US18220360

申请日：2023-07-11

Applicant: OZ Optics Ltd.

Inventor： Jean-Michel Ménard ,  Nicolas Couture

IPC: G01J3/42 ,  G01J3/50

Abstract: There is provided a system comprising a combination of a peak field booster with elements to increase spectral bandwidth and efficiency for THz generation and detection. The system is configured to achieve a high dynamic range around 3.5 THz while relying on a cost-effective NIR source, allowing the full system to be built at a lower cost and sold at a competitive price.

公开(公告)号：US11422088B2

公开(公告)日：2022-08-23

申请号：US16711835

申请日：2019-12-12

Applicant: OZ Optics Ltd.

Inventor： Jean-Michel Ménard ,  Alexei Halpin ,  Wei Cui

IPC: G01N21/35 ,  G01N21/359 ,  G02F1/35 ,  G01N21/3581 ,  G02B5/04

Abstract: There is provided a design of a device consisting of a patterned semiconductor material to provide enhanced detection bandwidth and efficiency of terahertz (THz) pulses with an electro-optic sampling. One device has a semiconductor crystal having a patterned grating on a surface of the semiconductor. In a system, there could optionally be a quarter-wave plate after the semiconductor crystal, followed by a prism. A pair of balanced photodiodes can optionally be provided after the prism. A pulse laser having a NIR beam and THz beam is sent through the semiconductor crystal to the quarter-wave plate to the prism to the photodiodes, wherein the patterned grating on the semiconductor crystal diffracts the NIR beam while the THz remains unaffected. The photodiodes can detect the result.