Collisional depolarization of the atomic Cs atomic cesium 6s2S1/2-10s2S3/2,9d2D5/2 transition with argon buffer gas

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Dr. Öğr. Üyesi SEDA KIN BARKA

Tez Türü: Yüksek Lisans

Tezin Yürütüldüğü Kurum: Miami University, Fen-Edebiyat Fakültesi, Fizik Bölümü, Amerika Birleşik Devletleri

Tez Danışmanı: S. Burçin Bayram

Tezin Onay Tarihi: 2005

Tezin Dili: İngilizce

Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu

Desteklendiği Program: Bu tezi destekleyen bir program bulunmamaktadır

Özet:

We report an experimental investigation of collisional depolarization of the atomic cesium 6s2S1/2-10s2S3/2,9d2D5/2 two-color two-photon polarization spectrum. The Ar pressure dependence of the spectrum revealed strong depolarization in the vicinity of the 6s2S1/2-6p2P3/2-10s2S3/2,9d2D5/2 stepwise resonances using short pulse pump-probe technique. The linear polarization degree was measured with the first laser tuned to resonance and the second laser tuned within 11cm-1. In the absence of collisions, the measured polarization spectrum is in excellent agreement with calculations. The collisional depolarization cross section which was deduced from the data is also in good agreement with the theory.