Patent ID: 11913886
Assignee: GEORGIA TECH RESEARCH CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 24:
25. A method comprising:
directing an input light field across a beam splitter such that the input light field is split into a first light field and a second light field;
delaying the first light field with respect to the second light field, thereby creating a delayed light field;
combining a third light field with the second light field and the delayed light field to create combined light fields, the third light field being an optical pulse with spectral content of less than 30 wavenumbers and being fixed in time with the second light field;
directing combined light fields across an object of interest, thereby creating one or more new light fields with new spectral frequency content;
directing one or more of the new light fields onto one or more detectors after transmission through or scattering from the object of interest; and
determining a frequency-dependent phase and/or amplitude of one or more of the new light fields based on a delay between light fields of the combined light fields.