Optomechanical nonlinearity enhanced optical sensors

Highly enhanced steady-state optomechanical entanglement via cross-Kerr nonlinearity

Entanglement [1, 2] is one of the most intriguing feature of quantum mechanics, having myriads of potential applications in quantum information and communication [3]. So far, preparation and manipulation of entanglement has been successfully demonstrated in microscopic systems, such as atoms , photons, ions [4–6] etc. However, the validity of entanglement in the macroscopic realm is still a deb...

Diffraction-based Integrated Optical Readout for Micromachined Optomechanical Sensors

Cross-Kerr nonlinearity in optomechanical systems

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Quantum-enhanced tunable second-order optical nonlinearity in bilayer graphene.

Second order optical nonlinear processes involve the coherent mixing of two electromagnetic waves to generate a new optical frequency, which plays a central role in a variety of applications, such as ultrafast laser systems, rectifiers, modulators, and optical imaging. However, progress is limited in the mid-infrared (MIR) region due to the lack of suitable nonlinear materials. It is desirable ...

Enhanced Optical Nonlinearity in Noncovalently Functionalized Amphiphilic Graphene Composites

In the past decades, there has been great progress in development of organic and inorganic optical limiters with large nonlinear optical (NLO) response. Carbon-based materials, including carbon black suspension (CBS), singleand multi-walled carbon nanotubes (CNTs), 3] and some small p-electron systems, such as fullerenes, porphyrins, and phthalocyanines have been widely explored as advanced opt...