English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Over the last few decades, nonlinear optics has become significantly morenonlinear, traversing nearly a billionfold improvement in energy efficiency,with ultrafast nonlinear nanophotonics in particular emerging as a frontier forcombining both spatial and temporal engineering. At present, cutting-edgeexperiments in nonlinear nanophotonics place us just above the mesoscopicregime, where a few hundred photons suffice to trigger nonlinear saturation. Incontrast to classical or deep-quantum optics, the mesoscale is characterized bydynamical interactions between mean-field, Gaussian, and non-Gaussian quantumfeatures, all within a close hierarchy of scales. When combined with theinherent multimode complexity of optical fields, such hybrid quantum-classicaldynamics present theoretical, experimental, and engineering challenges to thecontemporary framework of quantum optics. In this review, we highlight theunique physics that emerges in multimode nonlinear optics at the mesoscale andoutline key principles for exploiting both classical and quantum features toengineer novel functionalities. We briefly survey the experimental landscapeand draw attention to outstanding technical challenges in materials, dispersionengineering, and device design for accessing mesoscopic operation. Finally, wespeculate on how these capabilities might usher in some new paradigms inquantum photonics, from quantum-augmented information processing tononclassical-light-driven dynamics and phenomena to all-optical non-Gaussianmeasurement and sensing. The physics unlocked at the mesoscale presentsignificant challenges and opportunities in theory and experiment alike, andthis review is intended to serve as a guidepost as we begin to navigate thisnew frontier in ultrafast quantum nonlinear optics.

Mesoscopic ultrafast nonlinear optics -- The emergence of multimode quantum non-Gaussian physics