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Matter & energy: Time cloak may prove useful: Method could hide messages without sender's knowledge

Andrew Grant

Science NewsJun 19, 20130 citations

Everyday entanglement: Physicists take quantum weirdness out of the lab

Laura Sanders

Science NewsNov 11, 20104 citations

Cloaking matter waves

Physics TodayMar 27, 20080 citations

Time cloak deletes chunks of history

Jacob Aron

Erasing the past is now easier thanks to the latest time cloak, which conceals events instead of objects. The device can't cloak large-scale events such as a bank robbery but it can hide data flowing through an optical fibre, which could allow secret messages to be sent without a trace. Time cloaks work by slowing down light in an optical fibre, creating a gap in the beam. Any outside light that enters the hole becomes cloaked when the original beam is sped up. It's as if the original beam has been stitched back together like a spliced movie, hiding any record that the extra scene ever happenedErasing the past is now easier thanks to the latest time cloak, which conceals events instead of objects. The device can't cloak large-scale events such as a bank robbery but it can hide data flowing through an optical fibre, which could allow secret messages to be sent without a trace. Time cloaks work by slowing down light in an optical fibre, creating a gap in the beam. Any outside light that enters the hole becomes cloaked when the original beam is sped up. It's as if the original beam has been stitched back together like a spliced movie, hiding any record that the extra scene ever happened

The New ScientistJan 1, 20130 citations

Invisibility cloaks theorized to work for quantum effects

Physics TodayJun 13, 20130 citations

A temporal cloak based on ultra-short-pulse generation and time-domain fraunhofer diffraction

Feng Zhou, Jianji Dong, Siqi Yan +2 more

Recent research has revealed a significant ability to manipulate and control a light beam to hide events in time-domain. Achieving highly functional temporal cloaking, which open up and subsequently close intensity gaps in the probe beam to conceal events from the observer with satisfied performances, are still difficult in optical fiber communication. Here, we propose and experimentally demonstrate a temporal cloak system based on ultra-short-pulse generation and time-domain fraunhofer diffraction. We succeed in hiding 83 percent of the whole time axis and cloak pseudorandom dark return-to-zero data bitrate at 10 Gbit/s. The four states of temporal cloaking and condition of cloaking off have been investigated in this paper.Recent research has revealed a significant ability to manipulate and control a light beam to hide events in time-domain. Achieving highly functional temporal cloaking, which open up and subsequently close intensity gaps in the probe beam to conceal events from the observer with satisfied performances, are still difficult in optical fiber communication. Here, we propose and experimentally demonstrate a temporal cloak system based on ultra-short-pulse generation and time-domain fraunhofer diffraction. We succeed in hiding 83 percent of the whole time axis and cloak pseudorandom dark return-to-zero data bitrate at 10 Gbit/s. The four states of temporal cloaking and condition of cloaking off have been investigated in this paper.

International Conference on Optical Communications and Networks (ICOCN)Sep 1, 20161 citation

Matter & energy: A cloak in time conceals events: Physicists hide events in the lab for trillionths of a second

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Matter & energy: A cloak in time conceals events: Physicists hide events in the lab for trillionths of a second

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