公开(公告)号：US20240369905A1

公开(公告)日：2024-11-07

申请号：US18648974

申请日：2024-04-29

Applicant: IMRA America, Inc.

Inventor： Brendan Heffernan ,  Antoine Jean Gilbert Rolland ,  James Greenberg

IPC: G02F1/35

Abstract: An apparatus is provided for spectral purity transfer between a radio frequency (RF) frequency spectral domain and a terahertz (THz) frequency spectral domain. The apparatus includes a first optical frequency comb (OFC) having a first operational frequency and a second OFC having a second operational frequency different from the first operational frequency. The apparatus further includes a THz oscillator, wherein the first OFC and the second OFC are locked with one another and the second OFC and the THz oscillator are locked with one another.

公开(公告)号：US20230333012A1

公开(公告)日：2023-10-19

申请号：US18193954

申请日：2023-03-31

Applicant: IMRA America, Inc.

Inventor： Antoine Jean Gilbert Rolland ,  James Greenberg ,  Brendan Heffernan ,  Rubab Amin

IPC: G01N21/3581 ,  G01N21/3504

CPC classification number: G01N21/3581 ,  G01N21/3504 ,  G01N2201/0612

Abstract: A photonic millimeter-wave oscillator is based on a heterodyne beatnote of two continuous wave lasers and is configured to provide a narrow linewidth output when the frequency difference is disciplined with rotational spectroscopy of molecules using frequency modulation spectroscopy.