Quantum secure direct communication (QSDC) can directly transmit secrete messages through quantum channel. Device-independent (DI) QSDC guarantee the security relying only on observation of Bell inequality violation, but not any detailed description or trust inner workings users' devices. In paper, we propose a DI-QSDC protocol with practical high-efficient single photon sources. The parties co...

In this work, we report a fully CMOS-compatible single silicon neuron device, by exploiting interlinked positive and negative feedback loops. The device exhibits the key features of leaky integrate-and-fire functionality can produce neuronal oscillations that resemble biological oscillations. stochastic nature analog input-sensitivity switching dynamics are observed in device. Moreover, two-ter...

As a key part of vertical cavity surface emitting laser (VCSEL), active region will seriously affect the threshold and efficiency device. To obtain appropriate wavelength material gain, design In<sub>0.18</sub>Ga<sub>0.82</sub>As strain compensated quantum well is optimized. The relationship between lasing multiple wells (MQWs) thickness calculated. Considering influence...