Miniaturized terahertz photonic chips
Yazan Lampert (École Polytechnique Fédérale de Lausanne)
Francesco Bertot (École Polytechnique Fédérale de Lausanne)
Alexa Herter (ETH Zürich)
Amirhassan Shams-Ansari (Harvard University)
Alessandro Tomasino (École Polytechnique Fédérale de Lausanne)
Shima Rajabali (École Polytechnique Fédérale de Lausanne)
Marko Loncar (Harvard University)
Ileana Cristina Benea-Chelmus (École Polytechnique Fédérale de Lausanne)
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Abstract
Terahertz science and technology is possibly now at an inflection point where integrated photonic circuits become increasingly viable sources and detectors of such high-frequency radiation. Generation in both second order [1] and third order [2,3,4] nonlinear waveguides and architectures thereof has exploited either optical rectification or microcomb generation with subsequent optical-to-terahertz conversion at a uni-travelling carrier photodiode. These initial demonstrations showcase a possible route towards miniaturized terahertz chips that are seamlessly integrated with photonics.
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