Nice! I worked on something similar as an undergrad project years ago, setting up beams with different orbital angular momentum characteristics. Was a lot fun working in the lab. Sadly I didn’t have the focus/grit to finish writing a paper (sorry Dr. Singh). Side note, this was in 2007 and the folks in our optics lab would check the location of beams by grabbing from the stacks of ancient punchcards lying around and waving them next to the apparatus.
This paper has a pretty similar setup, but adds a spatial light modulator (like a DLP projector that can control phase as well as brightness).
What is wild to me is that the researchers here are able to create a beam where the angular moment changes as you move away.
Can't extract meaning past the third or fourth line, but just as an idle curiosity: isn't a vortex the product of interaction between the particles? Are photons interacting with each other?
I can't speak on the subject, but I just want to say I really enjoyed the Star-Trek-esque language (:
Here, we introduce optical rotatum, a behavior of light in which
an optical vortex beam experiences a quadratic chirp in its orbital
angular momentum along the optical path. We show that such an adiabatic
deformation of topology is associated with the accumulation of a Gouy
phase factor, which, in turn, perturbs the propagation constant (spatial
frequency) of the beam.
"Captain, if we can't reduce the adiabadic deformation of the Gouy phase factor, we'll never escape this optical vortex beam!"
Yeah, the math problem is the other direction -- a thousand things being named after one guy, or a thousand things being named after the simplest English word which could possibly apply.
Still better than computing where everything new thing is named after a generic household item that makes it completely impossible to disambiguate while searching.
Nice! I worked on something similar as an undergrad project years ago, setting up beams with different orbital angular momentum characteristics. Was a lot fun working in the lab. Sadly I didn’t have the focus/grit to finish writing a paper (sorry Dr. Singh). Side note, this was in 2007 and the folks in our optics lab would check the location of beams by grabbing from the stacks of ancient punchcards lying around and waving them next to the apparatus.
This paper has a pretty similar setup, but adds a spatial light modulator (like a DLP projector that can control phase as well as brightness).
What is wild to me is that the researchers here are able to create a beam where the angular moment changes as you move away.
Plus the really cool spiral patterns.
Can't extract meaning past the third or fourth line, but just as an idle curiosity: isn't a vortex the product of interaction between the particles? Are photons interacting with each other?
I can't speak on the subject, but I just want to say I really enjoyed the Star-Trek-esque language (:
"Captain, if we can't reduce the adiabadic deformation of the Gouy phase factor, we'll never escape this optical vortex beam!"Try reading any advanced math papers on Arxiv and you'll be amazed how simple and clear physics papers are.
I don’t understand any hard math concepts, but usually they are either:
* Somebody’s name or,
* Exactly what they say on the tin
Right? The language of physics has some false-friends in English.
Yeah, the math problem is the other direction -- a thousand things being named after one guy, or a thousand things being named after the simplest English word which could possibly apply.
Still better than computing where everything new thing is named after a generic household item that makes it completely impossible to disambiguate while searching.
Missed opportunity to call it a Rotato instead.
lol