Narrow electrodes on YZ-LiNbOO3 as an alternative to etched grooves for dispersive delay lines.
نویسندگان
چکیده
Narrow, open-circuited aluminum electrodes can provide controllable, weak reflectivity necessary for many applications such as surface acoustic wave (SAW) tags and dispersive delay lines (DDLs). We show, using finiteand boundary element method (FEM-BEM) based simulations and experiments, that a reflectivity of 0.3% per wavelength can be achieved easily and controlled by varying the electrode width.
منابع مشابه
Analysis and Design of Dispersive Interdigital Surface-Wave Transducers
A comprehensive circuit model characterization of dispersive interdigital transducers with nonuniform electrode spacing is presented. The model is an extension of a three-port circuit which has been useful for representing periodic transducers. The extended model includes the effects of strong piezoelectric coupling whereby the acoustic waves and electric circuits interact, and it also accounts...
متن کاملCharacteristic of a Broadband Ti:LiNbO, Optical Modulator with Buried Electrodes and Etched Grooves in the Buffer Layer
Traveling wave Ti:LiNbO, Mach-Zehnder optical modulators with buried electrodes and etched grooves in the SiO, buffer layer are analyzed by the finite element method. The tradeofl between the bandwidth BW and the half-waue voltage V, is discussed. The value of BW/V7 is used to weight the total performance of the modulator. Taking a thick buffer layer and etching deep grooves in the buffer layer...
متن کاملContact guidance of CNS neurites on grooved quartz: influence of groove dimensions, neuronal age and cell type.
We used an in vitro system that eliminates competing guidance cues found in embryos to determine whether substratum topography alone provides important neurite guidance information. Dissociated embryonic Xenopus spinal cord neurons and rat hippocampal neurons were grown on quartz etched with a series of parallel grooves. Xenopus neurites grew parallel to grooves as shallow as 14 nm and as narro...
متن کاملDetermination of Two Antiepileptic Drugs in Urine by Homogenous Liquid-Liquid Extraction Performed in A Narrow Tube Combined With Dispersive Liquid-liquid Microextraction Followed by Gas Chromatography-flame Ionization Detection
A simple and efficient homogenous liquid-liquid extraction method performed in a narrow tube combined with dispersive liquid-liquid microextraction method has been presented for the simultaneous determination of two antiepileptic drugs in urine followed by gas chromatography with flame ionization detection. In this method, a mixture of acetonitrile and urine sample (homogenous solution) is load...
متن کاملDetermination of Two Antiepileptic Drugs in Urine by Homogenous Liquid-Liquid Extraction Performed in A Narrow Tube Combined With Dispersive Liquid-liquid Microextraction Followed by Gas Chromatography-flame Ionization Detection
A simple and efficient homogenous liquid-liquid extraction method performed in a narrow tube combined with dispersive liquid-liquid microextraction method has been presented for the simultaneous determination of two antiepileptic drugs in urine followed by gas chromatography with flame ionization detection. In this method, a mixture of acetonitrile and urine sample (homogenous solution) is load...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- IEEE transactions on ultrasonics, ferroelectrics, and frequency control
دوره 55 2 شماره
صفحات -
تاریخ انتشار 2008