Probing the Material Loss and Optical Nonlinearity of Integrated Photonic Materials

Absorption spectroscopy

Absorption spectroscopy refers to spectroscopic techniques that measure the absorption of electromagnetic radiation, as a function of frequency or wavelength, due to its interaction with a sample. The sample absorbs energy, i.e., photons, from the radiating field. The intensity of the absorption varies as a function of frequency, and this variation is the absorption spectrum. Absorption spectroscopy is performed across the electromagnetic spectrum.

Nonlinear optics

Nonlinear optics (NLO) is the branch of optics that describes the behaviour of light in nonlinear media, that is, media in which the polarization density P responds non-linearly to the electric field E of the light. The non-linearity is typically observed only at very high light intensities (when the electric field of the light is >108 V/m and thus comparable to the atomic electric field of ~1011 V/m) such as those provided by lasers. Above the Schwinger limit, the vacuum itself is expected to become nonlinear.

Photonic integrated circuit

A photonic integrated circuit (PIC) or integrated optical circuit is a microchip containing two or more photonic components which form a functioning circuit. This technology detects, generates, transports, and processes light. Photonic integrated circuits utilize photons (or particles of light) as opposed to electrons that are utilized by electronic integrated circuits. The major difference between the two is that a photonic integrated circuit provides functions for information signals imposed on optical wavelengths typically in the visible spectrum or near infrared (850–1650 nm).

Probing the Material Loss and Optical Nonlinearity of Integrated Photonic Materials

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Emergent nonlinear dynamics in photonic lattices

Parametric Wavelength Conversion in Waveguiding Structures: Efficiency, Bandwidth and Polarization

Hybrid silicon photonics for terahertz applications

Emergent nonlinear dynamics in photonic lattices

Parametric Wavelength Conversion in Waveguiding Structures: Efficiency, Bandwidth and Polarization

Hybrid silicon photonics for terahertz applications