Temperature-Related Reversible Birefringence Changes in Rat Tail Tendon
Applied Optics, Vol. 39, Issue 19, pp. 3388-3395 (2000)
http://dx.doi.org/10.1364/AO.39.003388
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Abstract
By use of a highly sensitive method for measuring slight variations in birefringence it is shown here that a strong reversible correlation exists between rat tail tendon birefringence and temperature. This phenomenon is totally different from the loss of birefringence that results from a denaturation process. Below the threshold temperature leading to denaturation, an increase in temperature is systematically accompanied by a reversible increase in birefringence (0.25% °C−1). This phenomenon is observed at very fast heating rates (250,000 °C s−1), such as those induced by pulsed infrared lasers, and confirmed by experiments conducted with slow homogeneous heating of the sample medium (0.1 °C s−1). The good correlation between birefringence and temperature observed during the fast heating suggests that there are only small modifications of the tissue structure at the fibril level.
© 2000 Optical Society of America
[Optical Society of America ]
OCIS Codes
(120.5410) Instrumentation, measurement, and metrology : Polarimetry
(170.4580) Medical optics and biotechnology : Optical diagnostics for medicine
(170.6920) Medical optics and biotechnology : Time-resolved imaging
(260.1440) Physical optics : Birefringence
(350.5340) Other areas of optics : Photothermal effects
Citation
Didier Beghuin, Klaus Schönenberger, Guy Delacrétaz, and René Paul Salathé, "Temperature-Related Reversible Birefringence Changes in Rat Tail Tendon," Appl. Opt. 39, 3388-3395 (2000)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-39-19-3388
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