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Atomic wavepacket dynamics and Third Harmonic Generation in Sodium


Skenderović, Hrvoje; Vdović, Silvije
Atomic wavepacket dynamics and Third Harmonic Generation in Sodium // Optics letters, 38 (2013), 19; 3811-3814 doi:10.1364/OL.38.003811 (međunarodna recenzija, članak, znanstveni)


Naslov
Atomic wavepacket dynamics and Third Harmonic Generation in Sodium

Autori
Skenderović, Hrvoje ; Vdović, Silvije

Izvornik
Optics letters (0146-9592) 38 (2013), 19; 3811-3814

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Four-wave mixing; interference; quantum beats; third harmonic generation

Sažetak
In femtosecond degenerate four-wave mixing experiments in sodium vapor quantum beats are observed at the wavelength of the third harmonic when the fundamental beams are three-photon resonant. The period of beating which corresponds to the fine structure energy level splitting, does not change with atomic number density, buffer gas pressure or laser intensity. Surprisingly, third harmonic signal is observed only at negative time delays for transient grating pulse sequence. We relate this to the well known interference effect between excitation pathways involving the fundamental and the third harmonic fields which leaves atoms virtually unexcited and prevents formation of population grating.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
035-0352851-2857 - Femtosekundna laserska fizika atoma i molekula (Goran Pichler, )

Ustanove
Institut za fiziku, Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE


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