10 فروردین 1403
جعفر پورصمد بناب

جعفر پورصمد بناب

مرتبه علمی: دانشیار
نشانی: بناب- دانشگاه بناب
تحصیلات: دکترای تخصصی / فیزیک- لیزر
تلفن: 04137745000-1643
دانشکده: دانشکده علوم پایه
گروه: گروه مهندسی اپتیک و لیزر

مشخصات پژوهش

عنوان
Large Kerr coefficient via quantum interference induced by incoherent pump field and spontaneous emission
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
Kerr nonlinearity Quantum interference Incoherent pump Linear and nonlinear absorption
پژوهشگران مصطفی صحرایی (نفر اول)، آ. گلستانی (نفر دوم)، جعفر پورصمد بناب (نفر سوم)

چکیده

Nonlinear response of a four-level atomic system with two closely lying intermediate levels to the incoherent pump field is investigated. It is shown that without coherent laser control field and just by quantum interference of incoherent pumping field and spontaneous emission, a giant Kerr nonlinearity can be achieved. It is also demonstrated that the enhanced Kerr nonlinearity is located in the reduced absorption region. In addition, the effect of direct and indirect incoherent pump rates on Kerr nonlinearity is then discussed.