Researcher at @InstLangevin @ESPCI_Paris @CNRS. Account to promote 'Wavefront shaping in complex media'. Only science (ok... mostly science).
Joined June 2020
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New tutorial on `ZoomFFT` for speeding up off-axis computation in Python:
#optics #Python #digitalholography @InstLangevin
WARNING: New posts will only be on BlueSky from now on.
wavefrontshaping.net/post/id…
Sébastien M. Popoff retweeted
1/ We all know that if I can see your eyes, you can see mine. This is thanks to the optical *reciprocity principle*, which states that light paths are reversible. But what if there’s a scattering medium between us, like fog? Can reciprocity still help us “see”? 👁️👁️#Physics
Sébastien M. Popoff retweeted
Check out our new @NaturePhotonics paper on the generation of cluster states at record-high rates using high-dimensional entanglement:
nature.com/articles/s41566-0…
We use spatial entanglement to reduce the number of photons and feed-forward steps in photonic quantum computation (a 🧵)
🚨 Our latest article on the Rotational Memory Effect (RME) in multimode fibers is out!
@InstLangevin @ESPCI_Paris @CNRSingenierie #wavefrontshaping
Read the thread🧵for more details 👇🏾
journals.aps.org/prx/abstrac…
So what?
In the rest of the paper we develop two potential applications:
1. From the RME measurement, we can estimate the level and geometry of the disorder. Interesting for manufacturing, quality control, and modeling applications!
Sébastien M. Popoff retweeted
Bravo Alexandre Aubry et son équipe de l'@InstLangevin @ESPCI_Paris : passer sur @franceculture pour présenter ses recherches c'est le graal !
radiofrance.fr/franceculture…
New preprint: we show wavefront shaping with a new kind of MEMS megapixel spatial light modulator that has fast pistoning micro-mirrors: arxiv.org/abs/2409.01289 (includes code to run it fast). Great effort from project lead José @carl00s01, also with @gsdgordon @joelacarpenter.
Our new tutorial on digital micromirror devices (DMDs) for #wavefrontshaping is also available on my website, with added animations and Python code:
wavefrontshaping.net/post/id…
Thanks again Rodrigo Gutierrez Cuevas, @BrombergYaron, and M.W. Matthès.
@InstLangevin @ESPCI_Paris
🚨 Our tutorial on using Digital Micromirror Devices (DMDs) for wavefront shaping is out!
With Rodrigo Gutierrez Cuevas, @BrombergYaron, and M.W. Matthès.
@InstLangevin @ESPCI_Paris @CNRSingenierie #wavefrontshaping
Read thread🧵for more details 👇🏾
doi.org/10.1088/2515-7647/ad…
3. Mechanical stability
DMDs are typically connected to a PCB with a rigid cable, transmitting vibrations from the fan.
A simple fix: isolate the cable with foam—boring but effective!
