Local mechanical stimulation of the hearing organ by laser irradiation

Anders Fridberger, Tianying Ren

Research output: Contribution to journalArticle

19 Scopus citations

Abstract

Light produces force when interacting with matter. Such radiation pressure may be used to accelerate small objects along the beam path of a laser. Here, we demonstrate that a moderately powerful laser can deliver enough force to locally stimulate the hearing organ, in the absence of conventional sound. Damped mechanical oscillations are observed following brief laser pulses, implying that the organ of Corti is locally resonant. This new method will be helpful for probing the mechanical properties of the hearing organ, which have crucial importance for the ear's ability to detect sound.

Original languageEnglish (US)
Pages (from-to)33-37
Number of pages5
JournalNeuroReport
Volume17
Issue number1
DOIs
StatePublished - Jan 1 2006

Keywords

  • Basilar membrane
  • Cochlear microphonic potential
  • Interferometry
  • Pressure
  • Radiation

ASJC Scopus subject areas

  • Neuroscience(all)

Fingerprint Dive into the research topics of 'Local mechanical stimulation of the hearing organ by laser irradiation'. Together they form a unique fingerprint.

  • Cite this