Newly Observed Effect Makes Atoms Transparent to Certain Frequencies of Light Researchers at Caltech have discovered a new phenomenon, 'collectively induced transparency' (CIT), where light passes unimpeded through groups of atoms at certain frequencies. This finding could potentially improve quant
Artist’s visualization of a laser striking atoms in an optical cavity. Scientists discovered a new phenomenon called “collectively induced transparency” where groups of atoms cease to reflect light at certain frequencies. The team found this effect by confining ytterbium atoms in an optical cavity and exposing them to laser light. At certain frequencies, a transparency window emerged in which light bypassed the cavity unimpeded.
“We never knew this transparency window existed,” says Caltech’s Andrei Faraon , William L. Valentine Professor of Applied Physics and Electrical Engineering, and co-corresponding author of a paper on the discovery that was published on April 26 in the journalAn analysis of the transparency window points to it being the result of interactions in the cavity between groups of atoms and light.
“Through conventional quantum optics measurement techniques, we found that our system had reached an unexplored regime, revealing new physics,” says graduate student Rikuto Fukumori, co-lead author of the paper.
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