Changing the color of quantum light on an NetBet no deposit bonus codes 2024 chip

Device could advance NetBet no deposit bonus codes 2024 computing and NetBet no deposit bonus codes 2024 networks

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December 1, 2022

illustration of phase NetBet no deposit bonus codes 2024. — Changing the color of single photons using an NetBet no deposit bonus codes 2024 phase modulator. (Credit: Loncar Lab/Harvard SEAS)

Optical photons are ideal carriers of quantum information. But to work together in a quantum computer or network, they need to have the same color — or frequency — and bandwidth. Changing a photon’s frequency requires altering its energy, which is particularly challenging on NetBet no deposit bonus codes 2024 photonic chips.

Recently, researchers from the NetBet no deposit bonus codes 2024 John A. Paulson School of Engineering and Applied Sciences (SEAS)developed an NetBet no deposit bonus codes 2024 electro-optic modulator that can efficiently change the frequency and bandwidth of single photons. The device could be used for more advanced quantum computing and quantum networks.

The NetBet no deposit bonus codes 2024 is published in Light: Science & Applications.

Converting a photon from one color to another is usually done by sending the photon into a crystal with a strong laser shining through it, a process that tends to be inefficient and noisy. Phase modulation, in which photon wave’s oscillation is accelerated or slowed down to change the photon’s frequency, offers a more efficient method, but the device required for such a process, an electro-optic phase modulator, has proven difficult to integrate on a chip.

One material may be uniquely suited for such an application — thin-film lithium niobate.

“In our work, we adopted a new modulator design on thin-film lithium niobate that significantly improved the device performance,” said Marko Lončar,the Tiantsai Lin Professor of Electrical Engineering at SEAS and senior author of the study. “With this NetBet no deposit bonus codes 2024 modulator, we achieved record-high terahertz frequency shifts of single photons.”

The team also used the same modulator as a “time lens”— a magnifying glass that bends light in time instead of space — to change the spectral shape of a photon from fat to skinny.

“Our device is much more compact and energy-efficient than traditional bulk devices,” said Di Zhu, the first author of the paper. “It can be NetBet no deposit bonus codes 2024 with a wide range of classical and quantum devices on the same chip to realize more sophisticated quantum light control.”

Di is a former postdoctoral fellow at SEAS and is currently a NetBet no deposit bonus codes 2024 scientist at the Agency for Science, NetBet no deposit bonus codes 2024 and Technology (A*STAR) in Singapore.

Next, the team aims to use the device to control the frequency and bandwidth of NetBet no deposit bonus codes 2024 emitters for applications in NetBet no deposit bonus codes 2024 networks.

The NetBet no deposit bonus codes 2024 was a collaboration between Harvard, MIT, HyperLight, and A*STAR.

The paper was co-authored by Changchen Chen, Mengjie Yu, Linbo Shao, Yaowen Hu, C. J. Xin, Matthew Yeh, Soumya Ghosh, Lingyan He, Christian Reimer, Neil Sinclair, Franco N. C. Wong, and Mian Zhang.

This research was funded by the Harvard NetBet no deposit bonus codes 2024 Initiative (HQI), Army Research Office/Defense Advanced Projects Agency (DARPA) (W911NF2010248), Air Force Office of Scientific Research (FA9550-20-1-01015), DARPA Lasers for Universal Microscale Optical Systems (HR0011-20-C-0137), Department of Energy (DE-SC0020376), National Science Foundation (EEC-1941583), Air Force Research Laboratory (FA9550-21-1-0056), HQI post-doctoral fellowship, A*STAR SERC Central Research Fund (CRF), and Natural Sciences and Engineering Research Council of Canada (NSERC).

Topics: Applied Physics