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Dylan Renaud has been chosen as a 2024 Harvard Horizon Scholar!

December 19, 2023

Harvard Griffin GSAS introduces Dylan as one of the chosen 2024 Harvard Horizons Scholars. Selected by the Harvard Horizons Faculty Fellows, these scholars epitomize the exceptional researchers within Harvard’s PhD community. This year's group of eight students (our Dylan is one!) will receive comprehensive guidance in refining their presentation skills in preparation for a campus-wide symposium at Sanders Theatre on April 9, 2024. Follow this link for more information: ...

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Cover

Our work on deterministically strained color centers in diamond is featured on the cover of Applied Physics Letters!

December 18, 2023

Researchers in our lab have deterministically generated strained SiVs in diamond using high-stress silicon nitride thin films. This exciting work paves the way for higher-temperature operation of these systems.

Link to the paper.

Read more about Our work on deterministically strained color centers in diamond is featured on the cover of Applied Physics Letters!
Cover: Visual demonstration of importance of optical isolator

Our work "Integrated electro-optic isolator on thin-film lithium niobate" is published in Nature Photonics!

June 30, 2023

Our group has demonstrated high-performance electro-optic-based isolators in thin-film lithium niobate. By taking the advantage of the inherent non-reciprocity of travelling-wave phase modulator, we achieve an isolation ratio of 48-dB with low device insertion loss of 0.5 dB. Additionally, we test the functionality of our optical isolator by interfacing it with an on-chip distributed-feedback (DFB) laser, and verify that the isolator successfully protects the laser linewidth against reflection.

Read the paper...

Read more about Our work "Integrated electro-optic isolator on thin-film lithium niobate" is published in Nature Photonics!
time lens

Our on-chip time-lens generates ultrafast pulses and is published in Nature!

November 16, 2022

We have developed a high-performance, on-chip femtosecond pulse source using a tool that seems straight out of science fiction: a time lens.

The device is highly tunable, integrated onto a 2cm by 4mm chip and, because of lithium niobate’s electro-optical properties, requires significantly reduced power than table-top products. The research is published in Nature.

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Read more about Our on-chip time-lens generates ultrafast pulses and is published in Nature!
LN frequency comb

Professor Lončar shared our work on coupled-resonator electro-optic frequency comb

November 11, 2022

Laser Focus World interviewed professor Lončar on how our lab developed on-chip electro-optic frequency combs.

“Long story short: electro-optical combs are making a comeback because they’re more efficient than other combs and can generate an appreciable amount of power,” says Lončar. “And they’re very easy to operate.”

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awslogo

New research from Harvard and AWS will enable higher temperature operation of quantum communications networks

November 3, 2022

Following the announcement of a research alliance between the AWS Center for Quantum Networking and Harvard University, a joint team of Harvard and AWS scientists published a research paper today in Science Magazine discussing production of quantum memories that can operate at higher temperatures – enabling reduced cost and increased reliability for this fundamental component of quantum communication networks.

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Read more about New research from Harvard and AWS will enable higher temperature operation of quantum communications networks