Jeff Lundeen
@lundeen.bsky.social
Father, Physicist, Researcher, Professor. Optics, Quantum Photonics, and Quantum Information. University of Ottawa Faculty. #photonics #physics #quantum
At lunch, we were chuckling over the many scientific papers in which the experimental setup figure, made in 3D rendering software, had a laser that cast a shadow. Light doesn’t cast a shadow of course!
… so we made it cast one!
Work done at uOttawa along with the Boyd group
… so we made it cast one!
Work done at uOttawa along with the Boyd group
Light can cast a shadow: bit.ly/3Z3nSYn
It may sound like a riddle, but a research team proved that under certain circumstances, a #laser beam can act like an opaque object to cast a shadow.
The effect is visible to the naked eye, with the shadow following the beam without observable delay. 🧪⚛️💡
It may sound like a riddle, but a research team proved that under certain circumstances, a #laser beam can act like an opaque object to cast a shadow.
The effect is visible to the naked eye, with the shadow following the beam without observable delay. 🧪⚛️💡
November 16, 2024 at 3:02 AM
At lunch, we were chuckling over the many scientific papers in which the experimental setup figure, made in 3D rendering software, had a laser that cast a shadow. Light doesn’t cast a shadow of course!
… so we made it cast one!
Work done at uOttawa along with the Boyd group
… so we made it cast one!
Work done at uOttawa along with the Boyd group
A little past peak colour but, after our planned hikes kept getting cancelled due to rain, my group finally decided to just go on a walk at Beechwood cemetery in Ottawa where the trails wouldn’t be muddy. None but me had been. They were surprised at its size and the interesting graves and monuments.
October 28, 2023 at 2:59 PM
A little past peak colour but, after our planned hikes kept getting cancelled due to rain, my group finally decided to just go on a walk at Beechwood cemetery in Ottawa where the trails wouldn’t be muddy. None but me had been. They were surprised at its size and the interesting graves and monuments.
We had a great talk from Sean Molesky of Polytechnique Montreal showing there is a systematic way to find performance bounds for inverse design. ie how to know you are doing well with your design (and when you’re done rewriting your code to go faster!).
October 7, 2023 at 2:20 PM
We had a great talk from Sean Molesky of Polytechnique Montreal showing there is a systematic way to find performance bounds for inverse design. ie how to know you are doing well with your design (and when you’re done rewriting your code to go faster!).