Experimentally Verification of Reverberation Chambers at the High Level Electromagnetic Field Strengths via Atomic Sensors

Öz

In this study, for the first time, it was investigated that the high level theoretical electrical field value generated in electromagnetic reverberation chambers was experimentally verified using a Cs atomic sensor system based on laser-atom-microwave interaction. The scope of the work, the frequency of the laser is locked to the 6S_1/2 (F=4) ↔ 6P_3/2 (F=4) energy transition in the D₂ line of Cs atomic transition. The DROR (double radio optical resonance) resonance was obtained by applying a high level uniform microwave field  at the frequency of 9,192 GHz in reverberation chamber corresponding to  6S_1/2 (F=3)↔6P_3/2 (F=4) energy transition. Zeeman sub-levels of DROR resonance were observed under the DC magnetic field and resonance on the 6S_1/2 (F=3,m_F=0) ↔ 6S_1/2 (F=4,m_F=0) π-transition were investigated. The dependence of the bandwidth and amplitude of the Zeeman resonance at 6S_1/2 (F=3, m_F=0) ↔ 6S_1/2 (F=4, m_F=0) π-transition and also amplitude of the DROR resonance were investigated as a function of applied uniform and isotropic high-level microwave field strength in reverberation chamber. As a result of the study, it showed that use the atomic sensors as a new sensor in experimental verification of high electromagnetic field strengths in reverberation chambers.

Anahtar Kelimeler

• Reverberation chambers,laser-atom-microwave interaction,atomic sensor

Atomik Sensörler İle Çınlama Odalarının Yüksek Seviyeli Elektromanyetik Alan Şiddetlerinde Deneysel Olarak Doğrulanması

Öz

Bu çalışmada ilk defa elektromanyetik çınlama odalarında oluşturulan yüksek seviyeli elektrik alanın teorik değerinin, lazer-atom-mikrodalga etkileşimine dayanan bir Cs atomik sensor sistemi kullanılarak deneysel olarak doğrulanması araştırılmıştır. Çalışma kapsamında lazer ışınının frekansı Cs atomlarının D₂ enerji seviyesindeki 6S_1/2 (F=4)↔6P_3/2 (F=4) enerji geçişine kilitlenmiştir. İlk olarak çınlama odası içinde oluşturulan homojen 9,192 GHz frekansındaki mikrodalga alan ile 6S_1/2 (F=3)↔6S_1/2 (F=4) geçişinde DROR (çift radyo optik rezonans) elde edilmiştir. Öncelikle DROR rezonansının genliğinin çınlama odası içerisinde oluşturulan homojen ve yönden bağımsız mikrodalga alana bağlılığı araştırılmış, daha sonra ise DROR rezonansının DC manyetik alan altında Zeeman alt seviyeleri gözlenmiştir. Bunlardan 6S_1/2 (F=3, m_F=0) ↔ 6S_1/2 (F=4, m_F= 0)  π-geçişindeki merkez Zeeman rezonansının bant genişliği ve genliğinin çınlama odası içerisinde oluşturulan homojen ve yönden bağımsız mikrodalga alana bağlılığı araştırılmıştır. Çalışma sonucunda çınlama odalarının yüksek seviyeli elektromanyetik alan şiddetlerinde deneysel olarak doğrulanmasında yeni bir sensör olarak kullanılabilmesinin temelleri atılmıştır.

Anahtar Kelimeler

• Çınlama odaları,lazer-atom-mikrodalga etkileşimi,atomik sensör

Kaynakça

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