In this paper,the erenkov radiation of light pulse in a microring and gratings is simulated and investigated.The system design consists of a two-defect grating incorporating a microring,connected with a uniform gratin...In this paper,the erenkov radiation of light pulse in a microring and gratings is simulated and investigated.The system design consists of a two-defect grating incorporating a microring,connected with a uniform grating.In simulation,the continuous wave(CW) light pulse with wavelength centered at 1.55 μm is input into the microring device via the two-defect grating.The resonant outputs from the two-defect grating propagate through the microring and uniform grating,where the time delays of those two input pulses with different wavelengths through the system are distinguished by the output uniform grating.From the obtained resonant output pulses,we find that the red-shifted and blue-shifted erenkov pulses are observed.In applications,such a proposed system can be used to form two different optical delay pulses,in which the change in erenkov radiation of them,i.e.,time delay within a microring device system,can be useful for erenkov radiation imaging and sensing applications.展开更多
Ionic gating is known as a powerful tool for investigation of electronic functionalities stemming from low voltage transistor operation to gate-induced electronic phase control including superconductivity.Two-dimensio...Ionic gating is known as a powerful tool for investigation of electronic functionalities stemming from low voltage transistor operation to gate-induced electronic phase control including superconductivity.Two-dimensional(2D)material is one of the archetypal channel materials which exhibit a variety of gate-induced phenomena.Nevertheless,the device simulations on such iongated transistor devices have never been reported,despite its importance for the future design of device structures.In this paper,we developed a drift-diffusion(DD)model on a 2D material,WSe2 monolayer,attached with an ionic liquid,and succeeded in simulating the transport properties,potential profile,carrier density distributions in the transistor configuration.展开更多
We have proposed the novel design of 3D imaging pixel on-chip using a micro-conjugate mirror system,where the nonlinear microring resonator known as a Panda ring resonator is designed to form the micro-conjugate mirro...We have proposed the novel design of 3D imaging pixel on-chip using a micro-conjugate mirror system,where the nonlinear microring resonator known as a Panda ring resonator is designed to form the micro-conjugate mirror,which can be used to construct a three dimensional(3D)imaging system.Two micro-conjugate mirrors are vertically formed by stacking the two nonlinear Panda rings,which can be used to manipulate the 3D imaging perception,from which the human 3D vision can be replaced by a large area single eye device.In application,a thin film device of a single eye on-chip can be modeled and the artificial eye constructed.Simulation results obtained have shown that the single point(pixel)of an object can be interpreted to form the 3D image by the device whispering gallery modes(WGMs),from which the reference and the object beams are interfered and the 3D pixel formed.Finally,the holographic display information can be interpreted by the optic nerves and brain processing cells.The 3D image output signals can be confirmed theoretically by the symmetrical imaging signals.展开更多
文摘In this paper,the erenkov radiation of light pulse in a microring and gratings is simulated and investigated.The system design consists of a two-defect grating incorporating a microring,connected with a uniform grating.In simulation,the continuous wave(CW) light pulse with wavelength centered at 1.55 μm is input into the microring device via the two-defect grating.The resonant outputs from the two-defect grating propagate through the microring and uniform grating,where the time delays of those two input pulses with different wavelengths through the system are distinguished by the output uniform grating.From the obtained resonant output pulses,we find that the red-shifted and blue-shifted erenkov pulses are observed.In applications,such a proposed system can be used to form two different optical delay pulses,in which the change in erenkov radiation of them,i.e.,time delay within a microring device system,can be useful for erenkov radiation imaging and sensing applications.
基金This research was supported by Grant-in-Aid for Scientific Research(S)(no.19H05602)Grant-in-Aid for Scientific Research(C)(no.19K05201)from JSPS.
文摘Ionic gating is known as a powerful tool for investigation of electronic functionalities stemming from low voltage transistor operation to gate-induced electronic phase control including superconductivity.Two-dimensional(2D)material is one of the archetypal channel materials which exhibit a variety of gate-induced phenomena.Nevertheless,the device simulations on such iongated transistor devices have never been reported,despite its importance for the future design of device structures.In this paper,we developed a drift-diffusion(DD)model on a 2D material,WSe2 monolayer,attached with an ionic liquid,and succeeded in simulating the transport properties,potential profile,carrier density distributions in the transistor configuration.
文摘We have proposed the novel design of 3D imaging pixel on-chip using a micro-conjugate mirror system,where the nonlinear microring resonator known as a Panda ring resonator is designed to form the micro-conjugate mirror,which can be used to construct a three dimensional(3D)imaging system.Two micro-conjugate mirrors are vertically formed by stacking the two nonlinear Panda rings,which can be used to manipulate the 3D imaging perception,from which the human 3D vision can be replaced by a large area single eye device.In application,a thin film device of a single eye on-chip can be modeled and the artificial eye constructed.Simulation results obtained have shown that the single point(pixel)of an object can be interpreted to form the 3D image by the device whispering gallery modes(WGMs),from which the reference and the object beams are interfered and the 3D pixel formed.Finally,the holographic display information can be interpreted by the optic nerves and brain processing cells.The 3D image output signals can be confirmed theoretically by the symmetrical imaging signals.
