A New Ultrasonic Amplifier Device of CdS Crystal with Integrated Diffusion-Layer Transducers
スポンサーリンク
概要
- 論文の詳細を見る
It has been accomplished to embed a pair of CdS diffusion-layer transducers in a photoconductive CdS crystal for ultrasonic amplification. That is, a pair of transducer layers and conductive layers, and an amplifying part are integrated in a single piece of CdS crystal. The conductive layers are formed by heating the crystal in cadmium vapor, and they act as both a pair of electrodes for applying drift field voltage and the electrodes for transducer layers. A fabricated sample shows that the effective resistance of the conductive layer, which is considered to be in series with the equivalent electric impedance of the transducer, is lower than the impedance of the transducer itself. Upon application of the drift field, ultrasonic wave was amplified by 35 dB at 54 Mc compared with that of no drift field.
- 社団法人応用物理学会の論文
- 1964-12-15
著者
-
Wada Masanobu
Department Of Electronic Engineering Faculty Of Engineering Tohoku Univeristy
-
Chubachi Noriyoshi
Deparment Of Electrical Engineering Faculty Of Engineering Tohoku University
-
Chubachi Noriyoshi
Department Of Electronic Engineering Faculty Of Technology Tohoku University
-
KIKUCHI Yoshimitsu
Research Institute of Electrical Communication, Tohoku University
-
Kikuchi Yoshimitsu
Research Institute Of Electrical Communication Tohoku University
関連論文
- Nuclear Interaction of Core Region
- A technique of measuring relative sound velocity changes using a frequency variable type ultrasonic correlation system
- Measurement of Ultrasonic Velocity in Liquid Using a Modified Ultrasonic Correlation System Under Low S/N Condition : Acoustical Measurements and Instrumentation
- Velocity Measurement in Liquids by using Reflection Type Ultrasonic Correlator via Wave number Analysis in MHz Range : Physical Acoustics
- Measurement and Analysis of Vibrations on Surface of Phantom Induced by Piezoelectric Extracorporeal Shock Wave Lithotripter
- Power Difference in Spectrum of Sound Radiation before and after Break of Phantom by Piezoelectric Extracorporeal Shock Wave Lithotriptor
- Photoconductive Properties of Se-Annealed and Cu-Diffused CdSe Single Crystals
- Photoluminescent Properties of CdSe Single Crystals Doped with Donor Impurities
- The Effect of Phosphorus on the Edge Luminescence of CdSe Single Crystals
- Photoconductivity in Li-Doped CdSe Single Crystals
- Properties of CdSe Single Crystals Grown by the Piper-Polich Method
- Photoluminescence of CdSe Single Crystals
- Growth of CdSe Single Crystals from the Melt under an Atmospheric Pressure of Argon
- Evaluation of Piezoelectric Ceramic Substrates for Ultrasonic Bulk Wave Filters and Resonators Using Pulse Interference Method
- High-Resolution Determination of Transit Time of Ultrasound in a Thin Layer in Pulse-Echo Method
- A new method to measure bone properties by means of leaky surface acoustic waves
- Transmission Line Model Equivalent Circuit for Piezoelectric Transducers Including the Effect of Electrical Terminal Impedance
- A Basic Study on Nondestructive Evaluation of Potatoes Using Ultrasound : Acoustical Measurements and Instrumentation
- Chemical Isotropic Etching of Single-Crystal Silicon for Acoustic Lens of Scanning Acoustic Microscope
- Mechanically Scanned Acoustic Microscope
- Off-Centric Concave Transducer for Acoustic Microscopy : Ultrasonic Microscopy and Nondestructive Testing
- The Characteristics of the New Display Device Using the Depolarization of a Liquid Crystal (DTN-cell) : B-7: OPTICAL DEVICES (2)
- Melting Points of II-VI Compounds under Argon Pressure
- The Effects of Oxygen on Evaporated PbSe Films
- Properties of Zn_xCd_S Epitaxial Layers
- Vapor Phase Epitaxial Growth of Zn_xCd_S Layers on ZnS Substrates
- Green Electroluminescence of CdS Diodes at Room Temperature
- Electrical Properties of CuI Thin Films
- Some Properties of Europium β-diketone Chelates I : Synthesis and Fluorescent Properties
- Self-Activated Emission in CdS
- Effects of Annealing in Cd or S Vapor on Photoelectric Properties of CdS Single Crystals
- Photolumineseence in AN-Doped CdS Crystals
- The Growth of Ferroelectric Pb(Zr_xTi_)O_3 Single Crystals
- Unusual Photo-Response in Dye-Sensitized ZnO Thin Films
- Contact of ZnO Thin Films with Rhodamine B Dye
- A Simple Apparatus for Measuring Diffuse Reflectance at Low Temperatures
- Non-Contact Simultaneous Measurement of Thickness and Acoustic Properties of a Biological Tissue Using Focused Wave in a Scanning Acoustic Microscope : Medical Ultrasonics and Ultrasonic Measurements
- A Remote Measurement Method of Acoustic Velocity in Liquids by a Pair of Leaky Rayleigh Waveguides : Acoustical Measurements and Instrumentation
- Scanning Acoustic Microscope Employing Concave Ultrasonic Transducers : Physical Acoustics I
- Electroluminescence in Forward-Biased ZnSe Diodes
- Frequency Color Display by Nematic Liquid Crystals
- Helical Twisting Power in Cholesteric Liquid Crystal Mixtures. : I. Experimental Results
- Thermally Stimulated Current of Vacuum Deposited PbSe Films
- A New Ultrasonic Amplifier Device of CdS Crystal with Integrated Diffusion-Layer Transducers
- Photovoltaic Effect in CuInSe_2/CdS Heterojunctions
- Liquid Crystal Orientation on the Surface of Obliquely-Evaporated Silicon Monoxide with Homeotropic Surface Treatment
- Molecular Arrangement of Nematic Liquid Crystals
- Optical and Electrical Properties of ZnO Crystals
- Cholesteric-Nematic Phase Transitions in Mixtures of Cholesteryl Chloride and Nematic Liquid Crystals
- The Effects of Selenium on Evaporated PbSe Films
- Frequency Spectrum of Noise in Photoconductive PbSe Films
- The Effects of Substrate Temperature on Photoelectric Properties of PbSe Films
- Helical Twisting Power in Cholesteric Liquid Crystal Mixtures. : II. Theoretical Treatment
- Measurements of Acoustic Properties of Teeth by Impulsive-Wave Acoustic Microscope System : Medical Ultrasonics
- Temperature Dependence of Electron Drift Mobility for Ultrasonic Amplification in Cadmium Sulfide in Relation to Electron Trapping Effects
- Temperature Dependence of Ultrasonic Amplification in Cadmium Sulfide
- Variation of c-Axis Orientation of ZnO Thin Films Deposited by DC Diode Sputtering
- The Spatial Distribution of Deposition Rates in the DC Diode Sputtering of ZnO Thin Film
- Bragg Condition of Light Diffraction by Ultrasonic Waves in Anisotropic Crystals
- 24. Ultrasonic diagnosis of brain tumor.
- Photoconductivity of PbSe Films
- Molecular Orientation Effects in Compensated Liquid Crystals
- Inner Region and Nonstatic Effects of Nuclear Forces in the Triplet Odd State
- Cholesteric-Nematic Phase Transitions in Compensated Liquid Crystals
- Nucleon-Nucleon Potential in the Triplet-Even State
- Momentum Space Calculations of Nonstatic Effects of the OPEP in the Triplet Even State
- The Influence of Moisture on the Storage Phenomenon in As_2Se_3 Evaporated Films
- The Activation Energy for Oxygen Desorption from Zinc Oxide Surfaces
- Frequency Dependence and Mechanism of Electroluminescence in ZnS (Cu, Al) Electroluminescent Phosphors