Scientist and teacher, fascinated by light and electromagnetism. Reader at King's College London.
Joined October 2011
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Paco Rodríguez-Fortuño retweeted
Happy birthday to Professor Nader Engheta! 🥳 We celebrated this milestone birthday with a two-day workshop on metamaterials, joined by friends and colleagues from around the world. It was a wonderful occasion to honor his incredible contributions and celebrate together!
Two new works in arXiv, up for comments and feedback!
A hopefully educational review of wave forces and torques, unifying optics and acoustics arxiv.org/abs/2410.23670
Novel electromagnetic field dislocations, tied to fundamental symmetries arxiv.org/abs/2411.05741
Paco Rodríguez-Fortuño retweeted
New pre-print out!
arxiv.org/abs/2406.18405
Here we show that optical longitudinal chiral forces in dielectric waveguides can separate chiral nanoparticles even in the case of low chirality. @chiralforce @pakrodfor
The electromagnetic energy symmetry-sphere
arxiv.org/abs/2405.15718
Combines (radius = total energy):
- Energy difference between electric & magnetic fields
- Reactive helicity (energy diff between parallel & antiparallel)
- Helicity (energy diff between right & left-handed)
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This result, with other interesting insights, in our latest draft:
"The electromagnetic symmetry sphere: a framework for energy, momentum, spin and other electromagnetic quantities" from my talented team members Sebastian Golat @Sevastienn & Alexander Vernon
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Paco Rodríguez-Fortuño retweeted
We’re saddened to hear of the death of King’s alumni Peter Ware Higgs. A fantastic physicist, he studied at King’s from 1947-1952 and during this time he was a key member of the college’s Maxwell Society 🧵
Paco Rodríguez-Fortuño retweeted
⏲️ ⚡We're developing metamaterials that can change their properties at rapid speeds - with the potential to transform telecommunications, information & quantum technologies.
Read about our £7.7m @EPSRC grant with @imperialcollege & @UniofExeter loom.ly/aNPHoK0 ⬇️
Paco Rodríguez-Fortuño retweeted
Here's the novel part from our lab! By separating two laser beams, we create little whirlpools of light called optical vortices. The angular momentum of the light spins around a point, and this can be transferred to our nanoparticles making them spin.
Paco Rodríguez-Fortuño retweeted
Let's deep dive into our (with @pakrodfor) latest paper! We made votices of light in a new way, and used it to levitate and spin nanoparticles, for use as #sensors and to study #quantum physics.
nature.com/articles/s41467-0…
@KingsNMES @KCL_Physics
#physics #optics #levitation
With two counter-propagating misaligned beams, the @QuantumWorkshop team saw nanorods spinning really fast! Upon further study we realised that an array of transverse optical vortices (with OAM) was created by this light's structure. Really interesting project to contribute!
We (@pakrodfor) created an entirely new form of light in a surprisingly simple way, and used it to levitate and spin tiny little cylinders extremely fast! Such a fun project:
nature.com/articles/s41467-0…
@KCL_Physics @KingsNMES
Exciting experiment from @r1cc4rd0's lab!
You can also read my News & Views intro to the article for a general public, here:
"An optical double-slit experiment in time" rdcu.be/c83tj
Exciting news from our lab, we have observed temporal diffraction of light from a time-varying metamaterial, and it is now published in @NaturePhysics nature.com/articles/s41567-0…🤩 imperial.ac.uk/news/244037/d… 🧵
Paco Rodríguez-Fortuño retweeted
Exciting news from our lab, we have observed temporal diffraction of light from a time-varying metamaterial, and it is now published in @NaturePhysics nature.com/articles/s41567-0…🤩 imperial.ac.uk/news/244037/d… 🧵
Paco Rodríguez-Fortuño retweeted
to tell if a maze is solvable, just hang it by its corners! The first maze stays in one piece, so there is no path from the entrance at the top to the exit at the bottom. The second maze splits apart along the solution.
Paco Rodríguez-Fortuño retweeted
Don't really know what to say.
Category 2 ambulance calls include those for suspected heart attacks and strokes.
The mean response time in December was 1 hour 32 minutes across England; 2 hours 39 in the South West.
The target is 18 minutes.
Paco Rodríguez-Fortuño retweeted
Messier 1, la nebulosa del cangrejo.
Es un gif de 4 fotos:
- año 1951 del Digitized Sky Survey (DSS)
- año 1991 del Digitized Sky Survey (DSS)
- año 2014 por mi (AIP)
- año 2023 por mi (AIP)
Se puede ver como la nebulosa avanza y se hace mas grande. Explotó en el año 1054.
Paco Rodríguez-Fortuño retweeted
Thank you @NaderEngheta for the amazing talk today on 4D metaphotonics! ✨It is great to see physics discussions break out in the mince pie event as well 🥧
Recruiting a 3-year postdoc in my group, to work on theory and simulation of optical chiral forces in the context of EIC Pathfinder project CHIRALFORCE. Please see the details of the position, and apply below, before 13th November!
jobs.kcl.ac.uk/gb/en/job/055…