2. Instrumentation
In order to record Brillouin spectra and measure frequency shifts, numerous systems have been developed over the past nearly century. Indeed, the unique nature of these spectra requires specialized instrumentation, and each tool has its advantages as well as its limitations. To date, there is no universal setup. The nature of the materials to be studied, and the scientific research to be conducted with them, determine the design of the instrument.
2.1 Experimental Conditions
Controlling the environment allows precise experimental conditions to be imposed on the sample, such as:
the scattering angle;
variable sample conditions: fixed or variable stabilized temperature through heating or cooling, uniaxial or hydrostatic pressurization, bending,...
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Instrumentation
Description of a Brillouin instrument
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