TERAHERTZ-BASED DETECTORS USING COLD-ATOM OPTICS

2007 ◽  
Vol 17 (04) ◽  
pp. 789-800
Author(s):  
FRANK J. CROWNE ◽  
WILLIAM M. GOLDING ◽  
CLIFFORD HAZELTON
Keyword(s):  
Mechanical Behavior ◽  
Electromagnetic Fields ◽  
Electromagnetically Induced Transparency ◽  
Cold Atom ◽  
Atom Optics ◽  
Quantum Mechanical ◽  
Chemical Contaminants ◽  
Atom Cloud ◽  
Weakly Coupled ◽  
Induced Transparency

In this paper we explore the design of microwave-based structures that can enhance the interaction of electromagnetic fields with cold-atom ensembles, leading to novel sensing modalities based on the quantum-mechanical behavior of these systems. In particular, we discuss electromagnetically-induced transparency in a single uncondensed cold-atom cloud, and a two-cloud version of a SQUID, where the clouds are BEC's and take the place of the weakly coupled superconductors. These systems are both promising candidates for use in the high-precision detection of chemical contaminants.

CONTROLLABILITY OF ELECTROMAGNETICALLY INDUCED TRANSPARENCY IN A DOPPLER BROADENED FOUR-LEVEL ATOMIC SYSTEM

2013 ◽  
Vol 27 (11) ◽  
pp. 1350037 ◽  
Author(s):  
SOMIA ABD-ELNABI ◽  
K. I. OSMAN
Keyword(s):  
Density Matrix ◽  
Electromagnetic Fields ◽  
Atomic System ◽  
Electromagnetically Induced Transparency ◽  
Experimental Results ◽  
Doppler Broadening ◽  
Matrix Elements ◽  
Nonradiative Decay ◽  
Induced Transparency ◽  
Good Agreement

The influence of Doppler broadening on a four-level N-type atomic system has been investigated in the presence of spontaneous generating coherence. The atomic system interacting with three electromagnetic fields and includes the nonradiative decay, the effect of co- and counter-propagation of the fields is considered. The probe susceptibility behaviors can be modified by Doppler broadening via nonperturbative treatments of the density matrix elements solution in the absence and presence of the spontaneous generating coherence. Some interesting features are enhanced for the spectral behaviors and controllability of electromagnetically induced transparency, which were found to be in good agreement to some experimental results without including Zeeman sublevels to the system.

scholarly journals Distinction of electromagnetically induced transparency and Autler-Towners splitting in a Rydberg-involved ladder-type cold atom system

2021 ◽  
Vol 29 (8) ◽  
pp. 11406
Author(s):  
Zhonghua Ji ◽  
Yuechun Jiao ◽  
Yongmei Xue ◽  
Liping Hao ◽  
Jianming Zhao ◽  
...  
Keyword(s):  
Electromagnetically Induced Transparency ◽  
Cold Atom ◽  
Induced Transparency ◽  
Atom System

scholarly journals Radiation-Pressure Effects in Cold-Atom Absorption Spectroscopy and Electromagnetically Induced Transparency

2017 ◽  
Vol 08 (11) ◽  
pp. 1884-1893 ◽  
Author(s):  
Suying Bai ◽  
Xiaoxuan Han ◽  
Yunchun Jiao ◽  
Liping Hao ◽  
Jianming Zhao ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Radiation Pressure ◽  
Electromagnetically Induced Transparency ◽  
Cold Atom ◽  
Pressure Effects ◽  
Induced Transparency ◽  
Atom Absorption

Probing Bloch oscillations using a slow-light sensor

2020 ◽  
Vol 9 (5) ◽  
pp. 243-246
Author(s):  
Pei-Chen Kuan ◽  
Chang Huang ◽  
Shau-Yu Lan
Keyword(s):  
Phase Shift ◽  
Optical Lattice ◽  
Cold Atoms ◽  
Slow Light ◽  
Internal State ◽  
Electromagnetically Induced Transparency ◽  
Bloch Oscillations ◽  
Bloch Oscillation ◽  
Induced Transparency ◽  
Transparency Condition

AbstractWe implement slow-light under electromagnetically induced transparency condition to measure the motion of cold atoms in an optical lattice undergoing Bloch oscillation. The motion of atoms is mapped out through the phase shift of light without perturbing the external and internal state of the atoms. Our results can be used to construct a continuous motional sensor of cold atoms.

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