Optoacoustic induced vibrations within the inner ear

K. Y. Zhang, G. I. Wenzel, S. Balster, H. H. Lim, H. Lubatschowski, T. Lenarz, W. Ertmer, G. Reuter

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

An acoustic transient can be generated inside an absorbing tissue as a result of laser-tissue interaction after pulsed laser irradiation. Herein we report a novel application of this physical process, the optoacoustic wave generation in the inner ear and subsequently the induction of basilar membrane vibrations. These laser induced vibrations show a direct correlation to the laser energy and an indirect correlation to the distance from the irradiation focus. Through these characteristics they may be used, in a new generation of cochlear implants, to improve the frequency specific cochlear activation and consequently improve speech perception in hearing impaired patients with residual hearing.

Original languageEnglish (US)
Pages (from-to)23037-23043
Number of pages7
JournalOptics Express
Volume17
Issue number25
DOIs
StatePublished - Dec 7 2009

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