Mentre ti lascio, o figlia

Äänitetty: 7.-8.5.1953, Los Angeles.

Verhovino, mì̀j ti kraû

Soitinnus: sekakuoro.

Mentre ti lascio, o figlia KV 513

Soitinnus: lauluääni (basso), orkesteri.

Investigation of the two-photon induced fluorescence in Rb vapour excited by Ti:Sapphire femtosecond laser pulses

In this work we report the observation of the blue visible fluorescence at 420 nm in rubidium vapour as a result of two-photon absorption excited by femtosecond laser pulses 790 nm. After experimental investigation of the spa-tial and spectral characteristics of the obtained emission we can claim that mechanism of this coherent fluorescence at 420 nm was not caused by ampli-fied spontaneous emission, but represents the nondegenerate four-wave mixing. As a probable outcome of this investigation an opportunity of creation an ultrafast all-optical switcher might appear.