1 / 11

Coherent Diffraction and Cherenkov Radiation in fibers

Coherent Diffraction and Cherenkov Radiation in fibers. G. Naumenko , A. Potylitsyn, V. Bleko, V Soboleva Tomsk Polytechnic University, Tomsk, Russia. If is comparable to d , radiation propagates in several modes. Optical fibers. Well known technique for transport of the light. d.

gala
Download Presentation

Coherent Diffraction and Cherenkov Radiation in fibers

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Coherent Diffraction and Cherenkov Radiation in fibers G. Naumenko, A. Potylitsyn, V. Bleko, V Soboleva Tomsk Polytechnic University, Tomsk, Russia

  2. If is comparable to d, radiation propagates in several modes. Optical fibers Well known technique for transport of the light d based on the full internal reflection in fiber. However, radiation in dielectric fibers may be generated by a Coulomb field of relativistic particles. This may be useful in beam diagnostics.

  3. Theoretical background X Artru, C Ray. Radiation induced by charged particles in optical fibers.hal.archives-ouvertes.fr, 2012 VChR Spectra TR a is a fiber radius b is imact-parameter Herea is fiber radius

  4. is the angle of full internal reflection For Teflon fiber Mainly the ChR propagate along the fiber Possible geometries of radiation generation in fibers Mainly the DR propagate along the fiber

  5. Case of a fiber under the electron beam Only the ChR propagate along the fiber

  6. Experiment Spectrum of electron bunch field

  7. Bunch field Dependence on the angle and impact-parameter hSchemea e- DR d=10mm ChR

  8. X Artru, C Ray. Radiation induced by charged particles in optical fibers.hal.archives-ouvertes.fr, 2012 Spectrum from fiber Scheme of spectra measurement Spectrum

  9. Polarization influence Bunch field Interference Schemeb e- Angular dependence What is cause of the oscillations?

  10. Summary Geometry Both ChR and DR may be generated and propagate along fibers depending on the angle of fiber in respect to the electron beam. The dependence on the angle of fiber in respect to the electron beam is unimodal. Probably only ChR propagates along fibers. The dependence on the angle of fiber in respect to the electron beam is multimodal. If , the spectrum of propagated radiation is of several modes.

  11. Спасибо за внимание Thank you for attention

More Related