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David Phillips @photonphillips.bsky.social · 10/02/2026

New preprint! 'Miniaturised multi-plane light converters via laser-written geometric phase holograms' arxiv.org/abs/2602.07222 . Rapid prototyping of multi-functional passive optical components sized ~1mm^3. A long-running project led by Dr Unė Būtaitė who built the laser-writer from scratch!💡

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David Phillips @photonphillips.bsky.social · 11/01/2026

PhD studentship in the Structured Light Lab at University of Exeter (UK). Project: 'Threading quantum states of light through complex scattering media': www.exeter.ac.uk/study/fundin... International fees covered. Deadline 31st Jan. Please share 🙏 or if this could be for you then get in touch!💡

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David Phillips @photonphillips.bsky.social · 10/01/2026

Happy to share our paper "Self-configuring high-speed multi-plane light conversion" recently published in Nature Comms. If you work on multi-plane light converters and find implementing them somewhat fiddly, this might be for you! Special thanks to 1st author José Rocha who did a fantastic job!

An incoming light beam bounces multiple times from a phase-only light modulator, whose micrometre-scale mirrors piston vertically to impose a varying 2D delay to the reflected light. As light travels and reflects through multiple mirror height profiles, each reflection transformation builds upon the last, progressively reshaping light to produce an output beam with tailored properties. Image credit: José C. A. Rocha.

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David Phillips @photonphillips.bsky.social · 19/08/2025

New arXiv paper: "Harnessing the frequency eigenchannels of ultrafast time-varying media", led by Ian Hooper and Simon Horsley at Uni. of Exeter. Translating concepts from spatial "wavefront shaping" to temporal "waveform shaping" through dynamic media moving fast enough to generate new frequencies!

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David Phillips @photonphillips.bsky.social · 30/05/2025

2 postdoctoral researcher positions are available in the Structured Light Group in Exeter (UK). Project focussed on quantum & classical light control through dynamic complex scattering media (see concept picture). Details are below. Drop me an email if you'd like to know more! 🧪💡

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David Phillips @photonphillips.bsky.social · 15/03/2025

Happy to share our work published in Nature Photonics: "Threading light through dynamic complex media". We show how to pilot beams of light through the most stable channels within moving scattering media. Special thanks to Chai, Christina & John from the Structured Light Group, Exeter! #Photonics💡

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David Phillips @photonphillips.bsky.social · 27/01/2025

Hello, just arrived on bsky! Looking for fellow optics researchers. To kick things off - here is our latest preprint: arxiv.org/abs/2501.14129 'Self-configuring high-speed multi-plane light conversion'. Lead author José Rocha prefers to go make a cup of tea rather than manually align his MPLC...

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