Laser Doppler vibrometry of the human middle ear: the technical point of view

Hans-Jochen Foth; Matthias Brenner M.D.; Norbert Stasche M.D.; Karl Hoermann M.D.

doi:10.1117/12.206001

30 March 1995 Laser Doppler vibrometry of the human middle ear: the technical point of view

Hans-Jochen Foth, Matthias Brenner M.D., Norbert Stasche M.D., Karl Hoermann M.D.

Proceedings Volume 2390, Optical Biophysics; (1995) https://doi.org/10.1117/12.206001
Event: Photonics West '95, 1995, San Jose, CA, United States

Abstract

Laser-Doppler-vibrometry is used successfully to detect the motions of the tympanic membrane under normal hearing conditions. For more detailed information about the dynamical behavior of the middle ear, it is necessary to improve the experimental signal-to- noise-ratio, which is mainly determined by the amount of light coupled back into the interferometer. The paper focuses onto two possibilities to yield of this amount light by increasing the solid angle of the optics and increasing the reflectivity of the tympanic membrane.

Citation Download Citation

Hans-Jochen Foth, Matthias Brenner M.D., Norbert Stasche M.D., and Karl Hoermann M.D. "Laser Doppler vibrometry of the human middle ear: the technical point of view", Proc. SPIE 2390, Optical Biophysics, (30 March 1995); https://doi.org/10.1117/12.206001

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