10 فروردین 1403
حسين فالي نژاد

حسین فالی نژاد

مرتبه علمی: دانشیار
نشانی: دانشکده علوم و فناوری نانو و زیستی - گروه فیزیک
تحصیلات: دکترای تخصصی / فیزیک
تلفن: 07136487599
دانشکده: دانشکده علوم و فناوری نانو و زیستی

مشخصات پژوهش

عنوان The molecular spontaneous emission rate evaluation in a dispersive and dissipative Fabry–Perot cavity, a field quantization approach
نوع پژوهش مقالات در نشریات
کلیدواژه‌ها
Spontaneous emission rate, Fermi’s golden rule, Vector potential operator, Electric field correlation function, commutation relations, singlet and doublet polarization states
مجله EUROPEAN PHYSICAL JOURNAL D
شناسه DOI 10.1140/epjd/s10053-021-00249-7
پژوهشگران حسین فالی نژاد (نفر اول)

چکیده

By using the vector potential operator commutation relations, for a molecule (or generally an emitter) placed between two infinite identical dielectric slabs and with the given transition frequency and electric dipole moment, the spontaneous emission rate is evaluated via Fermi golden rule. Molecules with the electric dipole moment parallel and perpendicular to the slabs are considered separately, and for each orientation, a typical variation of the emission rate in the space of the cavity is demonstrated. In the used quantization scheme, the dielectric functions of the slabs can be an arbitrary complex function of frequency (satisfying Kramers–Kronig relations) and thus, slabs generally can be dissipative and dispersive. By showing the agreement of this quantization approach with two previous green function approaches, in evaluating the spontaneous emission rate in a Fabry–Perot cavity, the consistency between field quantization and Green function approaches is shown.