Taku Saiki
YOU?
Author Swipe
View article: Analysis for Levitation of EHD and Electrostatic Propulsion Device in Direction of Gravity using Optical Flow Method
Analysis for Levitation of EHD and Electrostatic Propulsion Device in Direction of Gravity using Optical Flow Method Open
Electro hydro dynamic (EHD) and electrostatic propulsion devices have no moving parts and, in the air, operate on electrical energy. Thus, electric propulsion systems without moving parts such as propellers are expected to be developed in …
View article: Rod‐Type Ce/Cr/Nd : YAG Ceramic Lasers with White‐Light Pump Source
Rod‐Type Ce/Cr/Nd : YAG Ceramic Lasers with White‐Light Pump Source Open
Ceramic is promising for use as a solid‐laser material pumped with solar or lamp light. We developed a Cr 3+ ion doped Nd : YAG ceramic laser that converts white light into near‐infrared laser light more efficiently. Investigation of its o…
View article: Microchip Nd:YAG and Nd:YVO<sub>4</sub> Lasers Pumped by VHG Wavelength-Stabilized Laser Diode
Microchip Nd:YAG and Nd:YVO<sub>4</sub> Lasers Pumped by VHG Wavelength-Stabilized Laser Diode Open
We adopted a single-mode, single-wavelength volume holographic grating (VHG) wavelength-stabilized wavelength laser diode (LD) as a pumping LD for an end-pumped microchip Nd:YAG and Nd:YVO 4 lasers we developed during CW and pulse operatio…
View article: Q-Switched and Mode-Locked Nd/Cr:YAG Ceramic Pulse Laser
Q-Switched and Mode-Locked Nd/Cr:YAG Ceramic Pulse Laser Open
A mode-locked and Q-switched short pulse laser using the Nd 3+ /Cr 3+ :YAG ceramic has been constructed with a SESAM and Cr 4+ :YAG crystal optical switch based on excite state absorption (ESA). Laser oscillations of the pulse laser were o…
View article: High-voltage Pulse Generation Using Electrostatic Induction in Capacitor
High-voltage Pulse Generation Using Electrostatic Induction in Capacitor Open
Pulse power sources can produce high temperature or high-density extreme conditions within a short time. They have been introduced to various fields such as those in laser, fusion research, the production of plasma, shockwaves in water, wa…
View article: Appearance of Ferromagnetic Property for Si Nanopolycrystalline Body and Vanishing of Electrical Resistances at Local High Frequencies
Appearance of Ferromagnetic Property for Si Nanopolycrystalline Body and Vanishing of Electrical Resistances at Local High Frequencies Open
Reduction in the skin effect for the sintered Si nanopolycrystalline body as an electricity conductor at a high frequency due to its nanostructure was studied. Singular disappearance of electrical resistances near a local high magnetic har…
View article: High-voltage Pulse Generation Based on Relaxed Self-Excited Oscillation Using Electrostatic Induction in External Capacitors
High-voltage Pulse Generation Based on Relaxed Self-Excited Oscillation Using Electrostatic Induction in External Capacitors Open
Simple method of producing high voltage pulses with short rising times based on electrostatic induction in external capacitor used for pulse power applications is proposed. The circuit has simple structure and contains minimum number of pa…
View article: Appearance of ferromagnetism property for Si nano-polycrystalline body and vanishing of electrical resistances at local high frequencies
Appearance of ferromagnetism property for Si nano-polycrystalline body and vanishing of electrical resistances at local high frequencies Open
Reduction in the skin effect for the sintered Si nanopolycrystalline body as an electricity conductor at a high frequency due to its nano-structure was studied. Singular vanishing of electrical resistances near a local high magnetic harmon…
View article: Fabrication of Metal Air Cells Using Sintered Si Nanopaste with Reduced Si Nanoparticles
Fabrication of Metal Air Cells Using Sintered Si Nanopaste with Reduced Si Nanoparticles Open
Silicon is used as original material for solar cells and semiconductors. The material naturally exists in the surface of the earth, such as a desert or coast. We proposed an energy cycle using solar-pumped pulse lasers and base metals. Met…
View article: Enhanced EHD and Electrostatic Propulsion Devices Based on Polarization Effect Using Asymmetrical Metal Structure
Enhanced EHD and Electrostatic Propulsion Devices Based on Polarization Effect Using Asymmetrical Metal Structure Open
Electro hydro dynamic (EHD) and electrostatic propulsion devices were developed in the 1920s by Thomas Townsend Brown. One such device, called a “lifter”, has no moving parts and, in the air, operates on electrical energy. It is a fashiona…