Kerrianne Harrington

If you are in the Totnes, Exeter or Devon area, please look out for Jack Pillar: news.devon-cornwall.police.uk/news-article... Thank you.

New paper 📝! In deep-UV AR-HCFs we found a reversible attenuation effect... like solarization, but temporary. We call it “pseudo-solarization.” doi.org/10.1364/OE.5... #research #photonics

🎉New paper! doi.org/10.1364/OE.5... 📝
We look at how different numbers of capillaries affect the guidance properties of hollow core fibres, enabling the guidance of ~ 50 modes in the near-infrared. Some cool fibres in here that guide the visible and ultraviolet #science #optics #photonics

Three women, dressed to run at an event.

Ran 10k this weekend with my sisters in memory of our Nan💙
Was special (and chaotic) doing it together — one sister ran with a broken elbow, the other with a broken toe 😅 We’ve raised £1.5k for the hospice. We’re really grateful for all the donations, thanks!
👉 fundraising.pwh.org.uk/fundraising/...

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💡

"U-care" has published its latest study, led by Asta Valančiūtė, on bioRxiv.

They show that even low doses of far-UVC light (206 nm, 222 nm) can directly damage DNA in human lung epithelial cells.

Congrats to the team for their hard work:
www.biorxiv.org/content/10.1...

Come join us as a lecturer in the QIST CDT! Great chance to come and teach amazing students and contribute to @qetlabs.bsky.social world-leading research! bristol.ac.uk/jobs/find/de... @qusit.bsky.social @qepnthub.bsky.social #quantum #technology

Poster submission deadline today! Get your abstract in! Some will be upgraded to talks too.

The @uniofbath.bsky.social Optical Fibres group is hiring! They are looking for a Professor and two Lecturers to join. If bespoke optical fibres could benefit your research, this is an opportunity. More info: www.bath.ac.uk/research-gro...

Time to nominate some #WomenInOptics for next year's notebook. Go on, I'm sure you know some.

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...

This is another first author paper from rising star and current #PhD student, Robbie Mears! Anti-resonant hollow core fibres with this many cladding capillaries can be difficult to fabricate, so this represents a very large step in our fabrication capabilities.

Three hollow core fibres rendered in blender. They have a higher number of cladding elements, so offer more multi-mode capacity.

Traditional multi-mode #optical fibres are straightforward, but the same is difficult to achieve in hollow core fibres. We report anti-resonant hollow core optical fibres guiding at least 50 spatial modes in the infrared (~5-fold improvement ). #science #photonics #research
arxiv.org/abs/2501.12996

Promotional image for the 2025 RMS Early Career Award Competition. White text on purple background, QR code in bottom right, with opening date (9 Dec 2024) and closing date (14 Feb 2025) specified.

Applications are *OPEN* for our Early Career Award Competition 2025! @rmsearlycareer.bsky.social

Great opportunity to receive recognition for your work in #microscopy, #Imaging or #FlowCytometry

Shortlisted entrants will be invited to the final at #mmc2025

Enter now: rms.org.uk/opportunitie...

Plants play a LOT of clever tricks with light (beyond that little miracle that is photosynthesis). If the topic interest you, there is a #PhD position open to work on it with Dr. Rox Middleton (a very bright young researcher at @uniofbath.bsky.social)
#PhDjobs
botphot.com/wp-content/u...

I am very grateful to the u-Care team and everyone I work with! Looking forward to what next year brings.

Presenting 'u-Care #wrapped' for our last '24 meeting! 🎁🎶 Hope they're Spotify fans 😂
🟣 #UV #opticalfibre to 190 nm doi.org/10.1364/OE.5...
🔅 #deep-UV gen. in a hollow core fibre (HCF) doi.org/10.1364/OL.5...
🟢 UVA absorption in HCF doi.org/10.1364/OE.5...
🔬Multi-core HCF doi.org/10.1364/OL.5...

Hi all! Lots of new activity here, so I will introduce myself! I'm a UK early career researcher in photonics. I
🔹 Fabricate novel optical fibres
🔹 Post-process them to create advanced devices
💡 Focused on UV hollow-core fibres & applications in healthcare.
I use bsky to post about my research 🔬

I'm a photonics researcher, specializing in fabricating novel optical fibres 🔬

New research in Optics Express📜! We linked unexpected UV loss in HCFs to gaseous chlorine. For transmission to recover, this needs to diffuse out. This has implications for current goals for long length, high yields of #fibreoptic HCF #Photonics doi.org/10.1364/OE.5...

Microstructured optical fibers for quantum computing? University of Bath physicists create microstructured hollow-core optical fibers to handle data transfer challenges expected with quantum computing.

Our article on microstructured optical fibers is featured in @LaserFocusWorld! 📰 We explore how fibres like anti-resonant hollow-core & photonic crystal fibres can benefit quantum computing 🔊 www.laserfocusworld.com/fiber-optics... #Photonics #FiberOptics #Quantum

New paper on multi-core hollow-core fibres! 🎉 We show a fibre with low inter-core coupling, achieving optical losses as low as 0.03 dB/m (620 nm) & 0.08 dB/m (1000 nm). Also Robbie’s 2nd first-author paper of his PhD! arxiv.org/abs/2409.14555 #photonics #fiberoptics #research

Exciting week for our PhD student Robbie Mears at #FiO in Denver! 📢He’s presenting 3 of 5 talks in the "Fiber Optics and Optical Communications Photonics" session, covering multi-core & multi-mode hollow-core fibers. 📜Papers coming soon! #Optics #Photonics #UV #Ucare #science

Could microstructured hollow core fibres meet the diverse needs of #quantum sources and networks? We think so! 📈 Explore our findings in our press release: bath.ac.uk/announcement... or the paper directly pubs.aip.org/aip/apq/arti... #physics #research

I hope you read about our work & I look forward to any questions or suggestions for future work with this fibre. The question session of a talk is always the most fun part, never quite present in papers

Our #opticalfiber guides most of the UV. Most excitingly, it reaches the shortest wavelength we can test without purging (air is a problem towards 180 nm). For a fibre of these long lengths, this is brand new! We hope this work will enable many transformative UV technologies

Despite this challenge, we managed to fabricate beautiful, long lengths of #DUV guiding optical fibre, important for our
@uCare_EPSRC collaborators who wish to precisely guide #deepUV light for transformative healthcare technologies.

HCFs for UV need to have VERY thin glass structures, which makes them difficult to fabricate. We are essentially making very long glass bubbles in a 2000degree furnace, and hoping to make perfect, symmetrical tubular walls of a few 100 #nanometers thick! It is a challenge!

ormal optical fibres (with glass in the core) are limited at short #UV wavelengths, as they have high attenuation and also darken with exposure over time. #HollowCoreFibers (HCF), being hollow in the core, do not have this problem, as shown in graph from prev UV HCF Bath paper:

Our #DeepUltraviolet hollow core optical fiber paper is finally published! doi.org/10.1364/OE.5...
@Robbie_Mears98
first 1st author paper too !! Below is a thread with a summary breakdown of the important #science in the paper…