en تخصصي Special پژوهشي Research Recently atomic magnetometers are one of the best tools in biomagnetic measurement such as magnetic field of brain and heart. In this paper, the technology of optically pumped atomic magnetometer based on circularly polarized light absorption pumping is described. We have been investigated a new method for measuring polarization effect in an alkali vapor based on polarized light transmission. In addition several magnetometers’ response factors such as cell temperature, laser’s intensity are introduced and reviewed. Our results show that the difference between absorption of circular and linear light not only depends on polarization, but also in number of polarized atoms. Atomic magnetometer, optical pumping, optically detected magnetic resonance. 71 76 http://ijop.ir/browse.php?a_code=A-10-175-3&slc_lang=en&sid=1 Samaneh Birzhandi sbirzhandi@gmail.com 1003194753284600980 1003194753284600980 No Laser and Plasma Research Institute Malihe Ranjbaran M_Ranjbaran@sbu.ac.ir 1003194753284600981 1003194753284600981 No Laser and Plasma Research Institute Seyed Mohammad Hosein Khalkhali m_khalkhali@sbu.ac.ir 1003194753284600982 1003194753284600982 No Laser and Plasma Research Institute Seyedeh Mehri Hamidi m_hamidi@sbu.ac.ir 1003194753284600983 1003194753284600983 No Laser and Plasma Research Institute Mohammad Mehdi Tehranchi teranchi@sbu.ac.ir 1003194753284600984 1003194753284600984 Yes Laser and Plasma Research Institute