Photon energy lifter
Zeno Gaburro, Mher Ghulinyan, Francesco Riboli, Lorenzo Pavesi,, Alessio Recati, Iacopo Carusotto

TL;DR
This paper introduces a novel photonic device that shifts the carrier frequency of optical pulses without altering their shape, utilizing slow light effects in periodic structures for efficient frequency conversion.
Contribution
It presents a time-dependent photonic structure capable of shifting optical pulse frequencies without distortion, leveraging slow group velocities in silicon-based photonic systems.
Findings
Finite Difference Time Domain simulations confirm effective frequency shifting.
Device efficiency benefits from slow light in periodic photonic structures.
The approach is compatible with conventional silicon technology.
Abstract
We propose a time-dependent photonic structure, in which the carrier frequency of an optical pulse is shifted without changing its shape. The efficiency of the device takes advantage of slow group velocities of light attainable in periodic photonic structures. The frequency shifting effect is quantitatively studied by means of Finite Difference Time Domain simulations for realistic systems with optical parameters of conventional silicon technology.
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