Abstract
The channelled spectrum of an optical beam generated by a laser diode operated below threshold after traversing microscope glass plates is spectrally analysed using a grating and a CCD linear array. The experiment has the following goals: to display the resulting channelled spectrum, to familiarize students with an important topic in metrology and to illustrate some interesting topics from spectroscopy using a CCD array as a spectrometer.
Original language | English |
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Pages (from-to) | 166-271 |
Number of pages | 106 |
Journal | European Journal of Physics |
Volume | 15 |
Issue number | 5 |
DOIs | |
Publication status | Published - Sept 1994 |
Keywords
- channelled spectrum
- optical beam
- laser diode
- below threshold
- microscope glass plates
- CCD linear array
- metrology
- spectroscopy
- spectrometer