Erzeugung von Laserpulsen und Spektroskopie mittels des Zeitlichen Talboteffekts und Zugehörige Vorrichtungen

Details

Veröffentlichungs-Nr.

EP3361583

Aktenzeichen

EP17000224

Anmeldetag

13. Februar 2017

Veröffentlichung

11. Dezember 2019

Erteilung

11. Dezember 2019

Rechtsraum

EP

IPC

H01S3/067G01J3/10G01J1/00G01N21/00G01J9/04G01N21/39G01J3/02H01S3/11G01J3/433H01S3/00// G01J3/28

Abstract

A method of generating laser pulses (1), comprises the steps of: - creating a circulating light field in a resonator device (11) having a resonator length L and an intra-cavity dispersion and being configured for supporting a plurality of resonator modes of the light field, and - generating a pulse train of said laser pulses (1) by a mode-locking mechanism, said laser pulses (1) providing a frequency comb with a carrier frequency É o and plurality of comb modes in frequency space, wherein: - the intra-cavity dispersion is selected such that comb mode phases Æ have a dependency on frequency É according to the mode-locking condition expressed with formula: wherein m is an integer that gives an effective repetition rate mÉ r of the laser pulses (1) in combination with a mode spacing É r at the optical carrier frequency É o , and wherein: - the mode-locking mechanism provides a coupling of the resonator modes such that the frequency difference n = É n+1 - É n between neighbouring mode frequencies É n+1 and É n is a linear function of an integer mode frequency number n and is compirised in a radio-frequency range, and wherein being the mode-locking condition. Furthermore, a spectroscopy method for investigating a sample, a laser pulse source, and a spectroscopy apparatus are provided.

Anmelder

Firma

Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V.

Land

🇩🇪 Deutschland

Fachgebiete