Control of Spontaneous Emission via a Single Elliptically Polarized Light in a Five-Level Atomic System
We investigate the features of the spontaneous emission spectra in a cold five-level atomic system coupled by a single elliptically polarized control field. We use wave function approach to derive the explicit and analytical expressions of atomic spontaneous emission spectra. It is shown that some i...
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| Veröffentlicht in: | Communications in theoretical physics 2013-05, Vol.59 (5), p.594-602 |
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| container_title | Communications in theoretical physics |
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| creator | 张多 李家华 丁春玲 杨晓雪 |
| description | We investigate the features of the spontaneous emission spectra in a cold five-level atomic system coupled by a single elliptically polarized control field. We use wave function approach to derive the explicit and analytical expressions of atomic spontaneous emission spectra. It is shown that some interesting phenomena such as spectralline enhancement, spectral-line suppression, spectral-line narrowing, spectral-line splitting and dark fluorescence can be observed in the spectra by appropriately modulating the phase difference between the right-hand circularly （LHC） and left-hand circularly （RHC） polarized components of the elliptically polarized control field and the intensity of external magnetic field. The number of emission peaks, the positions of fluorescence-quenching points can be also controlled. Furthermore, we propose an ultracold 87Rb atomic system for experimental observation. These investigations may find applications in high-precision spectroscopy. |
| doi_str_mv | 10.1088/0253-6102/59/5/14 |
| format | Article |
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We use wave function approach to derive the explicit and analytical expressions of atomic spontaneous emission spectra. It is shown that some interesting phenomena such as spectralline enhancement, spectral-line suppression, spectral-line narrowing, spectral-line splitting and dark fluorescence can be observed in the spectra by appropriately modulating the phase difference between the right-hand circularly （LHC） and left-hand circularly （RHC） polarized components of the elliptically polarized control field and the intensity of external magnetic field. The number of emission peaks, the positions of fluorescence-quenching points can be also controlled. Furthermore, we propose an ultracold 87Rb atomic system for experimental observation. 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| ispartof | Communications in theoretical physics, 2013-05, Vol.59 (5), p.594-602 |
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| language | eng |
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| source | Institute of Physics Journals; Alma/SFX Local Collection |
| subjects | Circularity Control systems Exact solutions Magnetic fields Mathematical analysis Spectra Spectral emissivity Spontaneous emission 原子系统 椭圆偏振光 能级系统 自发发射光谱 自发辐射谱 荧光光谱 解析表达式 辐射控制 |
| title | Control of Spontaneous Emission via a Single Elliptically Polarized Light in a Five-Level Atomic System |
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