July 2019
Spotlight Summary by Kris T. Kaczmarek
Electromagnetically induced transparency with a single frequency comb mode probe
Here, the authors make an important step towards bridging the gap between ultrafast optics and atomic physics. The optical frequency comb (OFC), a Nobel prize-winning technique from ultrafast science, has traditionally been used for “classical” applications, such as high-resolution spectroscopy and frequency metrology. Recently, there has been a growing interest to use this technique in the quantum domain. The OFC, a state of light with a large number of well-defined time and frequency modes, is a natural candidate for generating large entangled states of light, so-called cluster states—an important resource for optical quantum computers. For quantum OFCs to be useful, the ability to selectively manipulate these time-frequency modes is required. This is where the present paper comes in. Krešić and co-workers have studied in detail, both theoretically and experimentally, what happens when you send a broadband OFC through a cold atomic medium, whose optical resonance properties can be precisely manipulated with a narrowband field via electromagnetically induced transparency (EIT). Using two different techniques, they demonstrated resonant interaction between the narrowband field and a single tooth of their OFC, mediated by atoms. An interesting next step would be to show EIT-based selective delay of a single (quantum) tooth.
You must log in to add comments.
Add Comment
You must log in to add comments.
Article Information
Electromagnetically induced transparency with a single frequency comb mode probe
I. Krešić, M. Kruljac, T. Ban, and D. Aumiler
J. Opt. Soc. Am. B 36(7) 1758-1764 (2019) View: Abstract | HTML | PDF