Title :
500 GHz sensor system in SiGe for gas spectroscopy
Author :
K. Schmalz;P. Neumaier;R. Wang;J. Borngräber;W. Debski;M. Kaynak;D. Kissinger;H.-W. Hübers
Author_Institution :
IHP, 15236, Frankfurt (Oder), Germany
Abstract :
A 500 GHz sensor system for gas spectroscopy is presented, which includes a SiGe transmitter (TX) array and a SiGe receiver (RX). The integrated local oscillators of the TX-array and RX chips are controlled by two external phase-locked loops (PLL). The reference frequency of the TX-array PLL is modulated for 2f absorption spectroscopy (second harmonic detection). The performance of the sensor system is demonstrated by detecting the 2f absorption spectra of methanol and acetonitrile.
Keywords :
"Absorption","Silicon germanium","Spectroscopy","Phase locked loops","Frequency modulation","Arrays","Sensor systems"
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2015 40th International Conference on
Electronic_ISBN :
2162-2035
DOI :
10.1109/IRMMW-THz.2015.7327489
