Resonant tuning fork detector for THz radiation

Broadband semiconductor superlattice detector for THz radiation

We report on a broadband GaAs/AlAs superlattice detector for THz radiation; a THz field reduces the current through a superlattice, which is carried by miniband electrons, due to modulation of the Bloch oscillations of the miniband electrons. We studied the detector response, by use of a free electron laser, in a large frequency range ~5–12 THz!. The responsivity showed strong minima at frequen...

THz resonant-tunneling diodes

Design and Analysis of a New Tuning Fork Structure for Resonant Pressure Sensor

This paper presents a micromachined resonant pressure sensor. The sensor is designed to optimize the sensitivity and reduce the cross-talk between the driving electrodes and sensing electrodes. The relationship between the sensitivity of the sensor and the main design parameters is analyzed both theoretically and numerically. The sensing and driving electrodes are optimized to get both high sen...

Tuning Fork Tests

This article reviews the history of tuning fork tests, its current status as a clinical examination tool. All the commonly performed tuning fork tests are discussed in detail. The three commonly performed tuning fork tests include: Rinne test, weber test and Absolute bone conduction test.

Active Radiation for THz Signal

Despite the aggressive scaling of silicon-based IC’s over the past few decades, the transistor characteristics have yet to improve so that the ‘THz’-range (~300GHz-to-3THz) circuits can be effectively designed using the conventional techniques. This has led the few attempts at signal generation at these frequencies in CMOS to produce very small power levels (e.g., tens of nano-watts)[1,2]. The ...