The Fibre-Optical Model for Hawking Radiation 149
Hawking radiation in dispersive media
... It may be argued that a velocity profile with equal asymptotic velocities would be a more desirable option. Certainly, such a profile would have greater practical applicability: the change in flow velocity is normally ...
222
Low frequency analogue Hawking radiation: The Bogoliubov de Gennes model
... In experimental setups, if one can control with enough precision the external potential V ext and the effective 1D coupling constant g, one can reduce the coupling to the downstream mode by ensuring that the flow ...
27
Low frequency analogue Hawking radiation: the Korteweg–de Vries model
... theoretical model greybody factors are neglected, that is, the mode co-moving with the flow decouples from the other ...the Hawking one only when the dispersive length scale is much smaller than the flow ...
23
Frequency of Hawking Radiation of Black Holes
... thermal Hawking flux generated by “mode conversion” at the black hole horizon, and a non-thermal spectrum generated via scattering off the background into negative free-fall frequency ...
7
The assessment of tailor-made optical fibre subjected to ionizing radiation
... in radiation dosimetry, especially in the medical field to measure patients’ ...absorbed radiation dose, a fraction of the absorbed energy being conserved in metastable energy levels, either in localised ...
25
Optical fibre sensor for the online monitoring of gamma radiation doses
... linear radiation-induced attenuation response, at various wavelengths, corresponding well to the Beer- Lambert ...plastic optical fibre, it was possible to monitor the light between 500nm and ...the ...
7
Analytical theory of Hawking radiation in dispersive media
... Waves in moving media experience the analogue of the event horizon when the velocity of the medium exceeds the speed of the waves. Consider waves propagating with phase velocity c in a medium moving with local velocity ...
16
On the Model of Spectral Analysis of Optical Radiation
... a model of the electronic processes oc- curring in the ...of radiation, the wave absorption and the quantitative spectral analysis of the waves of the model for contaminated environment were ...
10
Hawking radiation from rotating brane black holes
... Figure 1: Sketch of the brane-world scenario: our universe is a brane, embedded in a higher-dimensional bulk. The standard model fields of particle physics are constrained to live on the brane; only gravity can ...
19
Hawking Radiation from Higher-Dimensional Black Holes
... 4 Hawking radiation from black holes in the ADD model In this section we consider Hawking radiation from black holes in the ADD model, both on the brane and in the ...of ...
36
Black Hole Entropy from Entropy of Hawking Radiation
... whole radiation, relating it to the entropy of BH, and finally using the peculiar temperature of Hawking radiation accompanied by geometrical nontrivial relation between energy and surface area of ...
9
Development and characterization of new optical fibre based radiation dosimeters / Mostafa Ghomeishi
... kinetic model, so not any types of continuum can be added for ...kinetic model, just some low intensity peaks will be appeared such all satellite ...
156
Back-reaction of the Hawking radiation flux on a gravitationally collapsing star II.pdf
... of radiation is not known in the interior, then one could perhaps speculate and think of the star as a collection of massive shells all obeying relations of the type dm(r, t)/dt ' 1/m 2 ...of radiation in ...
9
Review of doped silica glass optical fibre: Their TL properties and potential applications in radiation therapy dosimetry
... telecommunication fibre as a 1-D thermoluminescence (TL) system for therapeutic ...2 optical fibres show limited signal fading, with an average loss of TL signal of ...2 optical fibres have been ...
25
Radiation Field and Optical Coupling Evaluation Using a New Mathematical Model
... difference beam propagation method (FDBPM) and effective index method [18–22], the advantages of the new method, introduced in this paper, are its simplicity and universality. For the goal to make the intrinsic modes ...
9
Optical fibre sensors - applications and potential
... INTRODUCTION Fibre optic sensors are beginning to be regarded as a maturing technology and indeed whilst there are a multiplicity of actual applications and numerous small companies are servicing this emerging ...
11
Portable polymer optical fibre cleaver
... b v F MR (3) The spring was provided by Spiroflex and pulls with a constant force of 7,8 N. The damper was pro- vided by Ace Controls Inc (model HB-12-10) and according to our experiments the b coefficient can ...
5
Bending in extrusion of optical fibre preforms
... References C135 of non-isothermal conditions and asymmetries in die design [5]. Acknowledgements The author is grateful for the discussions with As- soc. Prof. David Clements on this problem, which led to the ...
13
An Accurate Model for Chromatic Dispersion in Optical Fibers under Radiation and Thermal Effects
... an optical fiber [12]. It has several limitations on the optical fiber ...an optical communications system [12], restrict the available wavelength region [13], increasing of bit-error rates [3], and ...
9
Observation of Planckian Hawking radiation at the Hawking temperature in an analogue black hole
... Hawking radiation. This temperature is an important link between Hawking radiation and black-hole thermodynamics, since it also arises from considerations of ...the Hawking and partner ...