[General] Twisted Vortex LIght

Wed Apr 18 03:51:14 PDT 2018

François:
Feel free to check out a few journals at OSA.org. They have several journals that could accommodate your modeling of double-slit diffraction using energy-starved vortex beams for both “particles” and “waves”.

Our “Nature of light” conference series was abruptly declared closed by the now-retired Executive Director of the SPIE, months before our 2017 biennial conference was supposed be launched. I was never consulted or alerted beforehand that there were some “bad elements” got into our conference series. Obviously, he was pressured by very “high level” people who “knows Physics”!
Chandra.

Sent from my iPhone

> On Apr 7, 2018, at 2:34 PM, Francois Henault <francois.henault at univ-grenoble-alpes.fr> wrote:
> 
> Hi Wolf,
> 
> Sorry for forgetting the paper, here it is
> 
> Unfortunately my model is not usable in starved photons regime. Intuitively, I would expect a result similar to Tonomura's experiment, but to my knowledge a vortex experiment with feeble light remains to be done.
> 
> Best Regatds,
> 
> Francois
> 
> 
> Le 07/04/2018 à 19:27, Wolfgang Baer a écrit :
> 
> Francios:
> 
> Great pictures. Your paper was not attached only three pictures.
> 
> Does your simulation predict the same result for low intensity (1 photon) vortexes? I was told the vortex is a bulk phenomena for intense beams.
> 
> I agree with your sentiment that our SPIE conference “The nature of light: What are photons?” no longer exists
> 
> Thank you
> 
> Wolf
> 
> Dr. Wolfgang Baer
> Research Director
> Nascent Systems Inc.
> tel/fax 831-659-3120/0432
> E-mail wolf at NascentInc.com<mailto:wolf at NascentInc.com>
> 
> On 4/7/2018 9:47 AM, Francois Henault wrote:
> 
> Dear Wolf and All,
> 
> Vortices are a quite fascinating subject for optical engineers. I recently published a paper (attached to this mail) about tailoring wavefronts in order to generate null irradiance along the optical axis of a system. This is a pure wave optics approach, light quanta are not needed.
> The question of their effect on Young’s fringes is very interesting. I performed quick simulations with my own wave optics model that produce the attached images. You should see:
> 1 - Usual Young’s fringes
> 2 - Young’s fringes with similar vortex beams of both holes. Fringes themselves are unchanged, only their luminous envelope is modified
> 3 – Same as 2, but adding a Pi phase-shift at one of the two holes. Forked fringes are appearing, which is in agreement with the (many) existing experimental results and literature.
> I take this opportunity to regret that our SPIE conference “The nature of light: What are photons?” no longer exists, because I would certainly have submitted a communication on that topic. Chandra, is there a chance that this conference returns in 2019 ?
> 
> Best Regards,
> Francois
> 
> 
> Le 07/04/2018 à 01:56, Wolfgang Baer a écrit :
> 
> to All
> 
> I was just at the TSC conference where twisted light creating vertexes was proposed for penetrating tissue
> 
> The pictures presented clearly showed light beams with doughnut shaped propagation wave fronts.
> 
> https://physics.aps.org/articles/v9/105
> 
> https://www.ncbi.nlm.nih.gov/pubmed/28964247
> 
> I asked the presenter if double slit experiments or single photon experiments had been done with these light forms. Apparently  the angular momentum of light is theoretically found when solving Maxwell's equations in cylindrical coordinates , but currently uses are for intense beams, but there is no obvious reason low intensity beams could not show the same phenomena.
> 
> The question of the wave front size of light came up and it was agreed that this was an open question. I know in our group we have discussed whether the wave front is contained in the apparatus and thereby the properties of photons cannot be separated from the propagation environment boundary conditions.
> 
> Could gravity also form vortecies? Even more intriguing could a vombination of gravitational and electric fields produce vortecies?
> 
> Anyone know more about this?
> 
> Wolf
> 
> Dr. Wolfgang Baer
> Research Director
> Nascent Systems Inc.
> tel/fax 831-659-3120/0432
> E-mail wolf at NascentInc.com<mailto:wolf at NascentInc.com>
> 
> 
> [https://ipmcdn.avast.com/images/icons/icon-envelope-tick-green-avg-v1.png]<http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient> Garanti sans virus. www.avg.com<http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient>
> 
> 
> 
> _______________________________________________
> If you no longer wish to receive communication from the Nature of Light and Particles General Discussion List at francois.henault at univ-grenoble-alpes.fr<mailto:francois.henault at univ-grenoble-alpes.fr>
> <a href="http://lists.natureoflightandparticles.org/options.cgi/general-natureoflightandparticles.org/francois.henault%40univ-grenoble-alpes.fr?unsub=1&unsubconfirm=1"<http://lists.natureoflightandparticles.org/options.cgi/general-natureoflightandparticles.org/francois.henault%40univ-grenoble-alpes.fr?unsub=1&unsubconfirm=1>>
> Click here to unsubscribe
> </a>
> 
> 
> 
> --
> __________________________________
> 
> François Hénault
> Ingénieur de Recherche
> Institut de Planétologie et d’Astrophysique de Grenoble (IPAG)
> UMR CNRS 5274
> Bâtiment OSUG-A, Porte 65
> 414, Rue de la Piscine
> Université Grenoble-Alpes - B.P.53
> F-38041 Grenoble Cedex 9
> Tel: +33 (0)4 76 63 57 78
> __________________________________
> 
> 
> 
> _______________________________________________
> If you no longer wish to receive communication from the Nature of Light and Particles General Discussion List at Wolf at nascentinc.com<mailto:Wolf at nascentinc.com>
> <a href="http://lists.natureoflightandparticles.org/options.cgi/general-natureoflightandparticles.org/wolf%40nascentinc.com?unsub=1&unsubconfirm=1"<http://lists.natureoflightandparticles.org/options.cgi/general-natureoflightandparticles.org/wolf%40nascentinc.com?unsub=1&unsubconfirm=1>>
> Click here to unsubscribe
> </a>
> 
> 
> 
> 
> --
> __________________________________
> 
> François Hénault
> Ingénieur de Recherche
> Institut de Planétologie et d’Astrophysique de Grenoble (IPAG)
> UMR CNRS 5274
> Bâtiment OSUG-A, Porte 65
> 414, Rue de la Piscine
> Université Grenoble-Alpes - B.P.53
> F-38041 Grenoble Cedex 9
> Tel: +33 (0)4 76 63 57 78
> __________________________________
> <josaa-32-7-1276.pdf>
> _______________________________________________
> If you no longer wish to receive communication from the Nature of Light and Particles General Discussion List at chandra.roychoudhuri at uconn.edu
> <a href="http://lists.natureoflightandparticles.org/options.cgi/general-natureoflightandparticles.org/chandra.roychoudhuri%40uconn.edu?unsub=1&unsubconfirm=1">
> Click here to unsubscribe
> </a>