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Arbitrary polarization conversion using metasurfaces with angle-tunable-birefringence

June 5, 2020

angle_tunable_birefringence

In this work, we demonstrate a freeform metasurface with novel birefringent properties. Traditionally, birefringence is considered as an intrinsic material property and its behavior typically limited to what is known as linear birefringence. In this work, by using a photonic inverse design approach...

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Two Lasers in One

February 8, 2020

Two lasers

We demonstrated that a single semiconductor laser can produce both an amplitude-modulated and a frequency-modulated frequency comb, revealing a physical relationship between two types of output previously thought to be independent. The physics of the frequency combs is illustrated by an analogy with systems of...

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