Journal ArticleDOI
Stable multipass Fabry-Perot interferometer: design and analysis.
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TLDR
A passive interferometer of low thermal expansion material, Cer-Vit, along with nonkinematic design and thermally compensated mirror mounts is constructed to achieve long term stability without the use of a servo control device.Abstract:
A multipass plane parallel Fabry-Perot interferometer (FPP-M) can give extremely high contrast
(in excess of 106) over a wide range of finesse values without reducing the transmission
significantly. Curves and tables are provided along with a brief outline of Chabbal’s
analysis for the residual defects of the Fabry-Perot mirrors to aid a quick assessment of the
optimum parameters for a desired spectrometric work. The exploitation of the advantages of an FPP-M
depends upon the maintenance of its stability. So, we have constructed a passive interferometer of
low thermal expansion material, Cer-Vit, along with nonkinematic design and thermally compensated
mirror mounts to achieve long term stability without the use of a servo control device.read more
Citations
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Book ChapterDOI
Trends in brillouin scattering: Studies of opaque materials, supported films, and central modes
BookDOI
Advances in acoustic microscopy
TL;DR: In this paper, Pfannschmidt et al. describe the interaction of acoustic waves with solid surfaces and perform phase contrast scan with phase contrast with a time reversal mirror for electronic component characterization.
Journal ArticleDOI
Brillouin scattering in condensed matter
TL;DR: In this article, the authors survey the developments in Brillouin scattering during the past fifteen years and describe classical effects, including stimulated and resonance effects, on the frequency interval of acoustic excitations in the hypersonic regime.
Journal ArticleDOI
Multimirror Fabry–Perot interferometers
TL;DR: In this paper, a general theory for multimirror interferometers, featuring matrices analogous to the theory of multilayer thin films, is presented. But the parameters in the matrix elements are mirror reflection coefficients and spacings instead of the usual refractive indices and layer thicknesses of thin films.
Book ChapterDOI
Surface Brillouin Scattering—Extending Surface Wave Measurements to 20 GHz
TL;DR: Brillouin light scattering is generally referred to as the inelastic scattering of an incident optical wave field by thermally excited elastic waves (elastic waves of thermal origin are usually called acoustic phonons) in a sample as mentioned in this paper.
References
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Journal ArticleDOI
New developments in interference spectroscopy
TL;DR: In this paper, a complete overview of the use of the Fabry-Perot (FP) spectrometer for interference spectroscopy is given, including the role of surface imperfections and of field diaphragm, and the recent improvements in dielectric coating.
Journal ArticleDOI
Parallelism controller for a scanning Fabry-Perot
TL;DR: In this paper, a controlling unit was developed to bring the plates of a piezoelectrically scanned Fabry-Perot into parallelism, and keep them parallel for long periods.
Journal ArticleDOI
A control system for a fully automatic pressure scanned Fabry-Pérot interferometer
P H Hindle,N K Reay +1 more
TL;DR: In this article, an automatic pressure stepping control and re-cycling system for use with a Fabry-Perot interferometer is described, which uses narrow band interference filters to isolate the spectral region of interest (Hβ at λ = 4861 A).
Journal ArticleDOI
Brillouin spectra of CaF2 microcrystals using a stable 3‐pass Fabry‐Perot interferometer
TL;DR: In this paper, the elastic properties of single-crystal grains in polycrystalline material can be studied through Brillouin scattering using a laser probe beam using a stable 3-pass Fabry-Perot interferometer having a contrast of 106.