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

Yıl 2019, Cilt: 9 Sayı: 1, 5 - 12, 30.06.2019

Mustafa Çetintaş Çağlar Aslan

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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