Demonstration of double EIT using coupled harmonic oscillators and RLC circuits

Details Demonstration of double EIT using coupled harmonic oscillators and RLC circuits Demonstration of double EIT using coupled harmonic oscillators and RLC circuits

2010-06-26

arxiv.org/abs/1006.5167v3

Eur. J. Phys. 32 (2011) 541-558

Physics

Quantum Physics

REVTeX, 10 pages, 10 figures. Some text revision, added references

Scientific paper

10.1088/0143-0807/32/2/025

Single and double electromagnetically induced transparency (EIT) in a medium, consisting of four-level atoms in the inverted-Y configuration, are discussed using mechanical and electrical analogies. A three coupled spring-mass system subject to damping and driven by an external force is used to represent the four-level atom mechanically. The equations of motion of this system are solved analytically, which revealed single and double EIT. On the other hand, three coupled RLC circuits are used, as the electrical analog, to explore and experimentally demonstrate single and double EIT. The simplicity of these two models makes this experiment appropriate for undergraduate students and easy to incorporate into a college physics laboratory.

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