TY - CPAPER
AU - Shishikura, F.
AU - Hayakawa, K.
AU - Hayakawa, Y.
AU - Inagaki, M.
AU - Komatsuzaki, Y.
AU - Nakao, K.
AU - Nogami, K.
AU - Sakai, T.
AU - Tanaka, T.
TI - Lebra Free-Electron Laser Elicits Electrical Spikes from the Retina and Optic Nerve of the Slugs Limax Valentianus
J2 - Proc. of FEL2015
AB - Since 2001, the Laboratory for Electron Beam Research and Application (LEBRA) has been providing tunable free-electron lasers (FELs) encompassing the near-IR region and some of the mid-IR region (0.9-6 microns), and generating visible wavelengths up to 400 nm by means of nonlinear optical crystals. We are investigating the efficiency of LEBRA-FELs for triggering photoreactions in living organisms. Last year we described the effects of LEBRA-FELs in controlling the photoreaction of lettuce seeds; red FEL (660 nm) and far-red FEL (740 nm) activate and inhibit germination, respectively. Here we used LEBRA-FEL to illuminate the retina of slugs (Limax valentianus), and determined which FEL wavelengths generate electrical spikes from the retina-optic nerve. Blue FEL light (wavelength: 470 nm) efficiently produced electrical spikes from the retina. The results are consistent with a previous study, where a xenon arc lamp with interference filters was used to produce monochromatic visible light. We plan to extend the wavelengths to the near- and mid-IR regions of LEBRA-FEL. We summarize our current results for the use of FEL in investigating the electrophysiology of the retina of slugs.
PB - JACoW
CY - Geneva, Switzerland
SP - 550
EP - 553
KW - FEL
KW - site
KW - experiment
KW - electron
KW - radiation
DA - 2015/12
PY - 2015
SN - 978-3-95450-134-2
DO - 10.18429/JACoW-FEL2015-TUP085
UR - http://accelconf.web.cern.ch/AccelConf/FEL2015/papers/tup085.pdf
ER -