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Infrared neural stimulation (INS) provides a contact free, high spatial resolution method to regulate neural activities. Due to photothermal effect, neurons which located in the beam path, could be depolarized by infrared light. How to keep the high efficiency of opto-thermal transduction in nerve tissue, and meanwhile increase the photon penetration depth in untargeted tissues is the key question...
In this paper, we computationally evaluate and compare the performance of recently reported In0.25Ga0.75N/GaN disk-in-wire light emitting diodes (LED) grown in the polar (c-plane) and nonpolar (m-plane) crystallographic orientations in terms of built-in fields, electronic bandstructure and interband optical transition rates. The microscopically determined transi-tion parameters were then incorporated...
To explore the penetration depth with short-wavelength infrared light, 980nm pulse infrared light was used to stimulate the primary motor cortex of rat. The heating model was created to simulate the temperature distribution for 1875nm and 980nm infrared neural stimulation. Post-stimulus time histogram was used to observe the neural response induced by Infrared neural stimulation on primary motor cortex...
Low temperature GaAs grown by an MBE system exhibiting Hall carrier mobility of 5000 cm2/v.s. is fabricated into continuous-wave (CW) Terahertz (THz) photomixers utilizing a dual-dipole antenna with an interdigitated feed structure. The characteristics of the CW THz photomixer are presented.
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