Understanding the Effect of THz/mm wave - Plasma Interaction on the Brightness of Glow Discharge Detectors

Kusoglu-Sarikaya, Cemre
Akbar, Demiral
Altan, Hakan
Today, the fact that non-ionizing THz and mm wave can be used in many areas reveals the necessity of devices that can efficiently detect these waves. Compared to existing commercial detectors, cost-effective neon indicator lamps acting as glow discharge detectors (GDDs) are known to be better in speed and responsivity. In GDDs, detection occurs as a result of the interaction between radiation and plasma. Although there are many studies in the literature trying to explain this interaction, these studies are limited to qualitative explanations made as a result of the experiments and the analytical models. Since GDDs are low pressure, non-local thermal equilibrium (non-LTE) plasma lamps, the plasma in these detectors has been simulated by using the parallel 1d3v Particle in Cell/Monte Carlo Collision (PIC/MCC) code, which can be used to study the kinetic behavior of particles. The interaction between plasma and THz/mm wave have also been included to the simulation code in order to examine the effect of this interaction. The results show that not only the electrical but also the optical detection mechanism that has been recently shown using GDDs could be analyzed with this code. Therefore, in this study, the reason for the brighter glow observed as a result of plasma-THz/mm wave interaction is investigated. In this context, the effect of THz/mm wave on one of excited states responsible for the light emitted by GDD is simulated and the results are discussed.


The Effect of Phosphor Coating on THz/mm wave-Plasma Interaction in Glow Discharge Detector
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Glow discharge detectors (GDDs) attract attention because they have advantageous features compared to commercial detectors currently used for detecting THz and mm waves. Studies in the literature show that N523-coded GDD which has a phosphor coating exhibits the best performance as a detector. However, to the best of our knowledge, no study has been carried out yet to demonstrate the effect of phosphor coating on the detection mechanism. Therefore, in this study, it is aimed to understand this effect by sim...
Understanding the detection mechanism of mm-wave radiation in glow discharge detectors
Sarikaya, Cemre Kusoglu; Akbar, Demiral; Ribeiro, Marco A.; Altan, Hakan (2018-09-11)
Sub-mm and mm waves are used in many applications such as spectroscopy and imaging, detection of weapons concealed under clothing, detection of diseases and non-destructive product inspection. By developing the THz detection mechanisms, the quality of this usability can be enhanced considerably. The commercial detectors currently used to detect THz waves range from Shottky diodes to bolometers, Golay cells and pyroelectric detectors. However, many of these detectors have limitations in terms of speed and re...
Analysis of the Interaction between THz Waves and Low Cost Plasma Detectors for the Development of Stand-Off Imaging Systems
Pavia, J P; Ribeiro, Marco; Kuşoğlu Sarıkaya, Cemre; Altan, Hakan; AKBAR, DEMİRAL; Souto, N (2020-06-16)
Over the past few years, the Terahertz (THz) band has been seen as quite promising in fields of spectroscopy and imaging. Most of the current manufacturing methods for THz emission and detection devices are limited due to the associated cost and complexity, therefore alternative ways have been sought driven by the availability of new technologies. From recent research in the field of imaging, commercially available Glow Discharge Detectors (GDDs) have been found to be an interesting solution because of thei...
Modulation and frequency response of GDDs in the millimeter wave/THz region
Alasgarzade, N.; Takan, T.; Uzun Kaymak, İlker Ümit; ŞAHİN, ASAF BEHZAT; Altan, Hakan (2015-09-22)
New methods are being developed for efficient detection of terahertz waves. While many detection techniques show promise their commercial development is still limited due to the overall complexity and cost of the imaging system. Using commercially available neon indicator lamps the interaction mechanism between the glow plasma and the millimeter / THz wave is investigated in detail as a function of the device speed, sensitivity to frequency and polarization of the light. A lock-in amplifier was used to meas...
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...
Citation Formats
C. Kusoglu-Sarikaya, D. Akbar, and H. Altan, “Understanding the Effect of THz/mm wave - Plasma Interaction on the Brightness of Glow Discharge Detectors,” 2019, vol. 11164, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/48617.