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One dimensional photonic crystal as an efficient tool for in-vivo optical sensing of neural activity

机译:一维光子晶体作为体内神经活动光学传感的有效工具

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In this paper, we recorded optically the neuraleuromuscular activity of alive worm via phase-sensitive measurement while stimulating it optically using infrared laser. By supporting Tamm plasmon mode, our fabricated multilayer structure of Glass/(TiO2/SiO2)(12)/Au was used as a sensing platform. By fixing an earth worm to the gold side of the structure and using open optic measurements, the amplitude ratio (psi) and phase shift (Delta) of reflections under s- and p-polarized incident lights have been recorded for different frequencies and pulse duration of IR laser. By increasing the pulse duration to 17 m s, Delta and psi values of Tamm Plasmon Polariton resonance for different frequencies have been splitted considerably in a regular trend. We hope that the combination of plasmonics and Tamm plasmon mode can open new insights into non-invasive neuraleuromusular stimulation and recording.
机译:在本文中,我们通过相敏测量光学记录了活体蠕虫的神经/神经肌肉活动,同时使用红外激光对其进行了光学刺激。通过支持Tamm等离子体激元模式,我们制备的Glass /(TiO2 / SiO2)(12)/ Au多层结构用作传感平台。通过将固定到结构的金侧并使用开放式光学测量,已记录了针对不同频率和脉冲持续时间的s和p偏振入射光下反射的振幅比(psi)和相移(Delta)红外激光。通过将脉冲持续时间增加到17 m s,不同频率的Tamm Plasmon Polariton共振的Delta和psi值已以规则的趋势显着分裂。我们希望等离子与Tamm等离子体激元模式的结合可以为非侵入性神经/神经质刺激和记录开辟新的见解。

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