2Dsheffield

2D materials research group, University of Sheffield, physics, photonics, materials science, group leader Alexander Tartakovskii @ldsd_research

[2Dsheffield @2Dsheffield]

Let's remember the sacrifice and the fallen

[2Dsheffield @2Dsheffield]

Fully funded PhD in "Advanced optical nano-imaging and nano-spectroscopy of novel semiconductors and quantum materials" in 2D Materials group in Sheffield. Funding available for UK and international students.

Apply here by the deadline 29 January 2025: https://t.co/4LM1Yh5Tk2

[ACS Nano @acsnano]

Researchers from @ldsd_research @2Dsheffield @sheffielduni demonstrate topological photonic crystals with unidirectional propagation using quasi-bulk flakes of the van der Waals material WS2.

Read it here 🔗 https://t.co/bFxDWyGtkm

[2Dsheffield @2Dsheffield]

First demonstration of a topological photonic crystal in a quasi-bulk van der Waals material WS2: https://t.co/YYb7hu45Oq

The WS2 nanophotonics platform is similar to silicon-on-insulator: exfoliated 200 micron flakes (30-300 nm thick) are attached directly to SiO2.

[2Dsheffield @2Dsheffield]

Registration is open for 3rd Quantum Optics and Nanophotonics Winter School, 15 - 16 January 2025, University of Sheffield, UK

Early-bird deadline 30 November 2024. Register here: https://t.co/JyTJGJczxI

We've put together an exciting programme of tutorial-type talks.

[2Dsheffield @2Dsheffield]

3rd Quantum Optics and Nanophotonics Winter School
15 - 16 January 2025 - University of Sheffield, UK

See the latest speaker list below and on our website https://t.co/Pj0zXBX7Dr

[2Dsheffield @2Dsheffield]

3rd Quantum Optics and Nanophotonics Winter School
15-16 January 2025, Sheffield. Visit our website to see the list of speakers, to register and submit your poster for this exciting event that attracted more than 100 participants in its 2024 edition https://t.co/Pj0zXBX7Dr

[2Dsheffield @2Dsheffield]

PhD graduate #19 in the group, Oscar Hutchings. Pictured here with his examiners Oleg Makarovskiy and Luke Wilson. Congratulations!

[2Dsheffield @2Dsheffield]

2nd International Workshop on 'Near-field Optical Imaging and Spectroscopy' in Sheffield was a success! 35 experts discussed the latest in optical near-field techniques and exciting science pursued in this still budding field. Thanks to all attendees and Attocube for sponsorship!

[2Dsheffield @2Dsheffield]

@igordownunder @Uber @ProfArmani Check out San Diego. 1 week by public transport only! Cheap and efficient!

[2Dsheffield @2Dsheffield]

Submit your work and register for the 2nd International Workshop on 'Near-field Optical Imaging and Spectroscopy', Sheffield, 12 Sept 2024

Abstract deadline 2 August. Registration by 23 August.

List of invited speakers and information on the setup demo:

https://t.co/rtle8fqck2

[2Dsheffield @2Dsheffield]

Read about the most sophisticated nanophotonic structures made so far from multilayer transition metal dichalcogenides in our new work on WS2 topological photonic crystals: https://t.co/59XXR1uRRJ. Van der Waals materials are wonderful not only in their monolayer form!

[2Dsheffield @2Dsheffield]

Registration is open for the 2nd International Workshop on "Near-field Optical Imaging and Spectroscopy", 12 September 2024, University of Sheffield: https://t.co/rtle8fqck2. Register to attend demonstration of our setup by Attocube on 11 September. Bring your own samples!

[2Dsheffield @2Dsheffield]

Our latest work "High Q Hybrid Mie-Plasmonic Resonances in van der Waals Nanoantennas on Gold Substrate" is online https://t.co/JNyqdSAGLY.
Use of quasi-bulk high-refractive-index TMDs opens new approach for achieving high-Q nanophotonic structures in visible and near-infrared.

[2Dsheffield @2Dsheffield]

New PhD project in our group in Sheffield: "New concepts and advanced materials for quantum nanophotonics". In this project we will extend the ideas developed for atomically thin 2D materials to nanophotonics. Apply here: https://t.co/EiOyAB7Mi5

[2Dsheffield @2Dsheffield]

@OPNmagazine @USNRL Layered materials work perfectly as waveguides, nanoantannas, photonic crystals etc. Many have high refractive indices, useful optical anisotropy & nonlinearity. Also, thanks to van der Waals forces they stick to any surface. Learn more in our recent work https://t.co/De7lgSOb17

[2Dsheffield @2Dsheffield]

@HilaryMasenda Thank you for your comment!

[2Dsheffield @2Dsheffield]

Our new paper in Advanced Materials applies alloying in atomically thin semiconductors for band structure engineering in van der Waals heterostructures. This work is dedicated to Alessandro Catanzaro who led this research during his PhD in Sheffield. https://t.co/x1emPZour0

[2Dsheffield @2Dsheffield]

@MeteAtature They call it "your Starbucks name".

...The relief on barista's face when they hear a simple name that doesn't match your look or accent😀

[2Dsheffield @2Dsheffield]

Our new work on "Nonlinear Rydberg exciton-polaritons in Cu2O microcavities" has just appeared in Light Science and Applications. Great UK/Germany collaboration crucially supported by a Centre-to-Centre EPSRC grant between Sheffield and TU Dortmund. https://t.co/35pxjbjra7