Speaker
Description
Living tissues absorb and scatter light resulting in low resolution images, poor information transfer and making deep-tissue optical imaging and sensing challenging. Recently, however, topological light has gained interest due to its claimed resilience against external perturbations. Here we generate skyrmions as our optical topology by combining beams with different orbital angular momentum and polarisation states and demonstrate robust information transfer through scattering samples without any corrective measures. We showcase numerous applications, successfully retrieving the topology in samples with varying thickness, composition and distortion strength including fly wings, frog ova, butterfly scales, bubble wrap, and parafilm. Additionally, we transmit images encoded into an alphabet of 10 topological numbers and show error-free information transfer even in situations where the input intensity and phase profile is destroyed. This work thus highlights the power of topological light for probing highly distorting light-matter interactions and lays the groundwork for noise-free communication and imaging using topology.
| Apply for student award at which level: | PhD |
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| Consent on use of personal information: Abstract Submission | Yes, I ACCEPT |