Koherentās apdzīvotības oscilācijas atomos bez supersīkstruktūras

6533b837fe1ef96bd12a3664

RESEARCH PRODUCT

Koherentās apdzīvotības oscilācijas atomos bez supersīkstruktūras

Austris Akmentiņš

subject

Koherentās apdzīvotības oscilācijas Atomārs ansamblis Divu līmeņu sistēma Fizika Divu frekvenču ierosme J1=0 - J2=1 pāreja

description

Darbā tiek pētīta atomāra ansambļa uzvedība, ja tas atrodas divu lāzeru ar mazliet atšķirīgām frekvencēm laukā. Šādā situācijā tiek ierosinātas koherentās apdzīvotības oscilācijas - ansamblī notiek periodiskas, nerimstošas svārstības, kuru periods sakrīt ar lāzeru frekvenču starpībai atbilstošo periodu. Apskatot divu līmeņu sistēmu, skaitliski tiek iegūta ansambļa apdzīvotību un koherences atkarība no laika un tad, izmantojot Bloha sfēru, tiek analizēta šo atrisinājumu atkarība no abu lāzeru amplitūdu attiecības un abu lāzeru frekvenču nobīdes no atomārās pārejas rezonanses frekvences. J1=0→J2=1 pārejas gadījumā skaitliski tiek iegūta fluorescences signālu ar 3 ortogonālām polarizācijām atkarība no laika un tiek analizēta to atkarība no jau minētajiem parametriem, kā arī ārējā magnētiskā lauka intensitātes un leņķa ar lāzera elektrisko lauku.

year	journal	country	edition	language
2015-01-01

https://dspace.lu.lv/dspace/handle/7/30450

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