SEMINAR Người thuyết trình (Speaker): PGS. TSKH Phạm Lê Kiên
Trung tâm Vật lý Lý thuyết, Viện Vật lý (đang công tác tại trường ĐH Điện tử-Viễn thông, Tokyo, Nhật Bản)
Tiêu đề (Title): Cavity-enhanced channeling of emission from an atom into a nanofiber (Hướng bức xạ tăng cường bởi hộp cộng hưởng từ nguyên tử vào quang sợi nano)
Thời gian (Time table): 10:00, Thứ Ba, 23/3/2010 (10:00 AM, Tuesday, 23 March 2010)
Địa điểm (Location): P.H tầng 1, Viện Vật lý, 10 Đào Tấn, Ba Đình, Hà Nội (Meeting room on the 1st floor, Institute of Physics)
Tóm tắt: We study spontaneous emission of an atom near a nanofiber with two fiber-Bragg-grating (FBG) mirrors. We show that the coupling between the atom and the guided modes of the nanofiber can be significantly enhanced by the FBG cavity even when the cavity finesse is moderate. We find that, when the fiber radius is 200 nm and the cavity finesse is about 30, up to 94% of spontaneous emission from the atom can be channeled into the guided modes in the overdamped-cavity regime. We show numerically and analytically that vacuum Rabi oscillations and strong coupling can occur in the FBG cavity even when the cavity finesse is moderate (about 30) and the cavity length is large (on the order of 10 cm to 1 m), unlike the case of planar and curved Fabry-Perot cavities.
Kính mời tất cả những ai quan tâm tới dự!
(All those interested are cordially invited to attend !)
