THz transmission and detection through glow discharge detectors

Date

2013-04-30

Author

Cinar, K.
Altan, Hakan
Sahin, A. B.

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

218
views

0
downloads

The capability of low cost glow discharge detectors (GDDs) to detect terahertz (THz) radiation has drawn much attention recently. In order to employ them in applications such as THz imaging these studies have typically focused on the response of the GDD at specific frequencies. To better understand the spectral behavior of glow discharges, we have not only examined the response of the GDD at a specific frequency of 118 GHz, but also we examined the interaction mechanism of GDDs with THz radiation using terahertz time domain spectroscopy (THz-TDS) in a broader range of frequencies between 0.05 THz - 0.5 THz. These results show that in addition to THz induced oscillations in the plasma charge density, the structure of the GDD itself plays an important role in the detection mechanism as supported by the large response observed at a specific frequency. By increasing the bias voltage on the gap, not only is the transmission greatly reduced at this specific frequency, the results suggest that it can also be tuned. Furthermore, measurements done at 118GHz show that the GDD structure has a varying response dependent on the modulation frequency. With increasing bias voltage the reponsivity of the GDD also increases which supports previous measurements that the change in current through the plasma is due to the sub-mm wave radiation.

Subject Keywords

Glow discharge detector (GDD), THz detector, Terahertz time domain spectroscopy (THz-TDS), Terahertz (THz) spectroscopy, Hybrid plasma filter

URI

https://hdl.handle.net/11511/38153

DOI

https://doi.org/10.1117/12.2017967

Collections

Department of Physics, Conference / Seminar

Suggestions

OpenMETU
Core

Parallel 1d3v Particle in Cell/Monte Carlo Collision (PIC/MCC) Simulation of a Glow Discharge Millimeter Wave Detector Kuşoğlu Sarıkaya, Cemre; Akbar, Demiral; Altan, Hakan (2018-01-15) Glow discharge detectors can be a good alternative to existing Schottky diodes, Golay cells and pyroelectric detectors because they are inexpensive and can detect mm-wave and sub-mm radiation successfully. This detection occurs as a result of the interaction of the radiation with the electrons in the plasma. It is required to understand this interaction mechanism to obtain optimum detection parameters. Previous methods have focused on understanding the interaction using analytical models, where the radiatio...
Characterization of a Glow Discharge Detector with Terahertz Time Domain Spectroscopy Cinar, Kamil; Altan, Hakan; ŞAHİN, ASAF BEHZAT (2013-09-06) The capability of low cost glow discharge detectors (GDDs) for detection of terahertz (THz) radiation draws attention recently. In order to employ them in applications such as THz imaging these studies have typically focused on the response of the GDD at specific frequencies. To better understand the spectral behavior of glow discharges, we have not only examined the response of the GDD at a specific frequency of 118 GHz, but also we examined the interaction mechanism of GDDs with THz radiation using terahe...
Characterization of a Glow Discharge Detector With Terahertz Time Domain Spectroscopy Cinar, Kamil; Bozaci, Hasan Mert; Altan, Hakan (Institute of Electrical and Electronics Engineers (IEEE), 2013-07-01) Recently, there has been much interest in the capability of low cost glow discharge detectors (GDDs) for detection of terahertz radiation. To utilize them in applications such as terahertz imaging these studies have typically focused on the response of the GDD at specific frequencies. To better understand the spectral behavior of glow discharges, we examine the interaction mechanism of GDDs with terahertz radiation using terahertz time domain spectroscopy in a broader range of frequencies between 0.05 and 0...
Comparison of terahertz technologies for detection and identification of explosives Beigang, Rene; Biedron, Sandra G.; Dyjak, Slawomir; Ellrich, Frank; Haakestad, Magnus W.; Huebsch, Daniel; Kartaloglu, Tolga; Ozbay, Ekmel; Ospald, Frank; Palka, Norbert; Puc, Uros; Czerwinska, Elzbieta; Sahin, Asaf B.; Sesek, Aleksander; Trontelj, Janez; Svigelj, Andrej; Altan, Hakan; van Rheenen, Arthur D.; Walczakowski, Michal (2014-05-06) We present results on the comparison of different THz technologies for the detection and identification of a variety of explosives from our laboratory tests that were carried out in the framework of NATO SET-193 “THz technology for stand-off detection of explosives: from laboratory spectroscopy to detection in the field” under the same controlled conditions. Several laser-pumped pulsed broadband THz time-domain spectroscopy (TDS) systems as well as one electronic frequency-modulated continuous wave (FMCW) d...
Glow discharge detectors (GDDS) for millimeter-wave radiation detection and imaging Alasgarzade, Namig; Uzun Kaymak, İlker Ümit; Department of Physics (2018) Commercially available indicator lamps, also known as Glow Discharge Detectors (GDDs), are employed for the purpose of millimeter wave radiation detection and imaging. Previous studies show that dominant radiation detection mechanism for GDDs is enhanced cascade ionization. The current-voltage characteristics of GDDs are obtained and working mode is found as abnormal glow mode. The plasma parameters such as electron temperature and gas composition inside GDDs are studied using Optical Emission Spectroscopy ...

Citation Formats

K. Cinar, H. Altan, and A. B. Sahin, “THz transmission and detection through glow discharge detectors,” 2013, vol. 8716, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/38153.