Local mechanical stimulation of the hearing organ by laser irradiation
2006 (English)In: NeuroReport, ISSN 0959-4965, E-ISSN 1473-558X, Vol. 17, no 1, 33-37 p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
2006. Vol. 17, no 1, 33-37 p.
basilar membrane, cochlear microphonic potential, interferometry, pressure, radiation
IdentifiersURN: urn:nbn:se:liu:diva-101070PubMedID: 16361946OAI: oai:DiVA.org:liu-101070DiVA: diva2:665147