Electromagnetically induced transparency information
The effect of EIT on a typical absorption line. A weak probe normally experiences absorption shown in blue. A second coupling beam induces EIT and creates a "window" in the absorption region (red). This plot is a computer simulation of EIT in an InAs/GaAs quantum dot
Electromagnetically induced transparency (EIT) is a coherent optical nonlinearity which renders a medium transparent within a narrow spectral range around an absorption line. Extreme dispersion is also created within this transparency "window" which leads to "slow light", described below. It is in essence a quantum interference effect that permits the propagation of light through an otherwise opaque atomic medium.[1]
Observation of EIT involves two optical fields (highly coherent light sources, such as lasers) which are tuned to interact with three quantum states of a material. The "probe" field is tuned near resonance between two of the states and measures the absorption spectrum of the transition. A much stronger "coupling" field is tuned near resonance at a different transition. If the states are selected properly, the presence of the coupling field will create a spectral "window" of transparency which will be detected by the probe. The coupling laser is sometimes referred to as the "control" or "pump", the latter in analogy to incoherent optical nonlinearities such as spectral hole burning or saturation.
EIT is based on the destructive interference of the transition probability amplitude between atomic states. Closely related to EIT are coherent population trapping (CPT) phenomena.
The quantum interference in EIT can be exploited to laser cool atomic particles, even down to the quantum mechanical ground state of motion.[2] This was used in 2015 to directly image individual atoms trapped in an optical lattice.[3]
^Liu, Chien; Dutton, Zachary; Behroozi, Cyrus H.; Hau, Lene Vestergaard (2001). "Observation of coherent optical information storage in an atomic medium using halted light pulses". Nature. 409 (6819): 490–493. Bibcode:2001Natur.409..490L. doi:10.1038/35054017. PMID 11206540. S2CID 1894748.
Electromagneticallyinducedtransparency (EIT) is a coherent optical nonlinearity which renders a medium transparent within a narrow spectral range around...
optical nanophotonic devices. In a recent experiment, electromagneticallyinducedtransparency was implemented on a multi-pass diamond chip to achieve...
to: Transparency (photography), a transparent photograph Transparency (projection), for use with an overhead projector Electromagneticallyinduced transparency...
1991, when Stephen Harris and collaborators demonstrated electromagneticallyinducedtransparency in trapped strontium atoms. Reduction of the speed of light...
Electromagneticallyinduced grating (EIG) is an optical interference phenomenon where an interference pattern is used to build a dynamic spatial diffraction...
Retrieved 21 January 2012. Ralf Röhlsberger; et al. (2012). "Electromagneticallyinducedtransparency with resonant nuclei in a cavity". Nature. 482 (7384):...
stimulated emission. This phenomenon is also the essence of electromagneticallyinducedtransparency. The basic LWI concept was first predicted by Ali Javan...
application to spectroscopic studies including demonstration of electromagnetically-inducedtransparency in quantum wells." "APS Fellowship". www.aps.org. Retrieved...
state, a phenomenon known as coherent population trapping. Electromagneticallyinducedtransparency List of laser articles P. Lambropoulos & D. Petrosyan (2007)...
pair of bright and dark ground states can be generated by electromagnetically-inducedtransparency (EIT). The net effect of many cycles from bright to excited...
experimentally demonstrated. Among the designs are those based on: electromagneticallyinducedtransparency in an optical cavity or microresonator, where the transmission...
molasses Cavity-mediated cooling Use of a Zeeman slower Electromagneticallyinducedtransparency (EIT) cooling Anti-Stokes cooling in solids Polarization...
non-demolition measurements of individual microwave photons. Electromagneticallyinducedtransparency was used in combination with strong interactions between...
coherence is essential in research on several effects, such as electromagneticallyinducedtransparency (EIT), lasing without inversion (LWI), stimulated raman...
Pfau, T., & Giessen, H. (2009). "Plasmonic analogue of electromagneticallyinducedtransparency at the Drude damping limit" Nature Materials, 8(9), 758–762...
photostability Laser crystals Lasing without population inversion Electromagneticallyinducedtransparency Optics communications Digital imaging Holography Faraday...
" 2012 Lene Hau "for the experimental demonstration of electromagneticallyinducedtransparency 'slow light' (with Stephen E. Harris)." 2015 Deborah S...
in the early nineteen eighties. He has publications on ElectromagneticallyInducedTransparency. He developed an inexpensive model for laser cooling of...
United States "for the experimental demonstration of electromagneticallyinducedtransparency (Harris) and of 'slow light' (Harris and Hau)." Stanford...
made. This observation led to the later development of electromagneticallyinducedtransparency by Harris and others, as well as Stimulated Raman Adiabatic...
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