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Low-cost measurements of the 'resonant' wavelengths reflected by a compact disk under skimming rays

Mauro, M. P.Di ; Onorato, P. ; Gratton, L. M. ; De Luca, R ; Fiore, O ; Gislén, Lars LU and Naddeo, A (2024) In European Journal of Physics 45(1).
Abstract
We demonstrate the construction and utilization of an affordable apparatus using readily available materials to accurately measure in a quantitative manner the wavelengths reflected by a compact disc (CD) under skimming light rays. In fact, only a limited number of wavelengths can be revealed when light rays from a white lamp are directed at a CD (or a DVD) in a manner that specifically selects the rays that graze the surface of the horizontally held disc. We compare the results with the ones obtained with a commercial spectrometer, finding that they are in good agreement among them and with the theoretical predictions.
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author
; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
European Journal of Physics
volume
45
issue
1
article number
015301
pages
9 pages
publisher
IOP Publishing
external identifiers
  • scopus:85179756775
ISSN
1361-6404
DOI
10.1088/1361-6404/ad0aa0
language
English
LU publication?
yes
id
b6d02f84-92b2-4f39-a7aa-ea4079da0ded
date added to LUP
2024-01-15 08:49:28
date last changed
2024-01-31 11:46:20
@article{b6d02f84-92b2-4f39-a7aa-ea4079da0ded,
  abstract     = {{We demonstrate the construction and utilization of an affordable apparatus using readily available materials to accurately measure in a quantitative manner the wavelengths reflected by a compact disc (CD) under skimming light rays. In fact, only a limited number of wavelengths can be revealed when light rays from a white lamp are directed at a CD (or a DVD) in a manner that specifically selects the rays that graze the surface of the horizontally held disc. We compare the results with the ones obtained with a commercial spectrometer, finding that they are in good agreement among them and with the theoretical predictions.}},
  author       = {{Mauro, M. P.Di and Onorato, P. and Gratton, L. M. and De Luca, R and Fiore, O and Gislén, Lars and Naddeo, A}},
  issn         = {{1361-6404}},
  language     = {{eng}},
  number       = {{1}},
  publisher    = {{IOP Publishing}},
  series       = {{European Journal of Physics}},
  title        = {{Low-cost measurements of the 'resonant' wavelengths reflected by a compact disk under skimming rays}},
  url          = {{https://lup.lub.lu.se/search/files/169565708/Di_Mauro_2024_Eur._J._Phys._45_015301.pdf}},
  doi          = {{10.1088/1361-6404/ad0aa0}},
  volume       = {{45}},
  year         = {{2024}},
}