Characterization of tetraaminediphenyl-based pyroelectric detector from visible to millimeter wave ranges

Паулиш, А. Г.; Gusachenko, A. V.; Morozov, Alexander O.; Dorozhkin, K. V.; Suslyaev, V. I.; Golyashov, V. A.; Minin, Oleg V.

doi:10.1117/1.oe.59.6.061612

Cited by 11 publications

(9 citation statements)

References 27 publications

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“…The photodetector has an input window of polyethylene terephthalate with a diameter of 5 mm and a photosensitive pad with the area of 1×1 mm 2 . The characteristics of the used pyroelectric photodetector are studied in detail in [25,26]. To obtain the maximum signal from the pyroelectric detector, the MM radiation is modulated with a frequency of about 100 Hz using a mechanical obturator.…”

Section: Methodsmentioning

confidence: 99%

Experimental Proof-Of-Concept of a Spatial Photonic Switch Based on an Off-Axis Zone Plate in Millimeter Wavelength Range

Паулиш¹,

Geints²,

Minin³

2022

Preprint

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Optical switches are a key element in modern network communications. We present the results of experimental verification of a new theoretical concept proposed earlier for a full-optical wavelength-selective dual-channel switch based on the photonic hook effect, which is free from using any micro-mechanical devices or nonlinear materials. A large-scale laboratory prototype of such a device based on an off-axis Wood zone plate is considered and its main parameters in the millimeter wavelength range are investigated On the basis of the experiments, we show that the optical isolation of switched channels for a switch based on an off-axis zone plate can achieve 15 dB at a frequency difference of 25 GHz in frequency range from 93 to 136 GHz. Given the scaling, these results can be transferred to another range, including the optical one.

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Section: Methodsmentioning

confidence: 99%

Experimental Proof-Of-Concept of a Spatial Photonic Switch Based on an Off-Axis Zone Plate in Millimeter Wavelength Range

Паулиш¹,

Geints²,

Minin³

2022

Preprint

Self Cite

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“…For instance, a FET-based THz detector was reported by Zdaneviĉius et al [11] with an effective area defined by simulated antenna directivity yielding 1.7 times larger area than its physical size. Another effective area definition based on its physical area is reported by Paulish et al where the sensitive pyroelectric film area is used [12].…”

Section: Introductionmentioning

confidence: 99%

Input Power and Effective Area in Terahertz Detector Measurement: A Review

2023

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The field of terahertz (THz) science and technology research area have been exponentially growing recently, motivated by the increasing demand for safer security imaging, better quality control within manufacturing industries, space and astronomical investigation, biomedical diagnostics, and larger communication bandwidth. The THz waves detection mechanism is one of the critical components in developing a high efficiency and high sensitivity THz communication system. This paper reviews the principle and instrumentation of THz optical metrology for the precise and accurate characterization of THz detectors in the range of 0.1 THz to several THz. In this context, we individually discuss the determination of radiation input power and effective area followed by a survey of THz optical measurement methodology used in the state-of-the-art THz detectors. In addition, challenging issues remaining in the THz detector measurements are provided. This paper sets out a guideline to address the main concept behind the THz detector measurement as well as their challenges and opportunities. Additionally, useful insight is given through a summary of available power meter instrumentation for THz input power calibration.INDEX TERMS THz detectors, THz input power, effective area, THz metrology, antenna, THz measurements, THz instrumentation.

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“…However, those methods are costly and complex to implement. Recently, in order to efficiently improve the coupling of the EM radiation and, hence, to increase the sensitivity of terahertz detectors [14][15][16][17][18] , we introduced the use of the terajet effect. The terajet effect [19][20][21][22] provides a simple method to significantly improve the focusing of the terahertz beam by simply placing a low-loss dielectric particle with wavelength-scaled dimensions in front of the focal volume 23 .…”

Section: Introductionmentioning

confidence: 99%

Responsivity enhancement of a strained silicon field-effect transistor detector at 0.3 THz using the terajet effect

et al. 2021

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We report on the enhancement of responsivity by more than one order of magnitude of a silicon-based sub-terahertz detector when a mesoscopic dielectric particle was used to localize incident radiation to a sub-wavelength volume and focus it directly onto the detector. A strained-silicon modulation field-effect transistor was used as a direct detector on an incident terahertz beam at 0.3 THz. A systematic study in which Teflon cubes were placed in front of the detector to focus the terahertz beam was performed. In this study, cubes with different sizes were investigated, and an enhancement of the responsivity up to 11 dB was observed for a cube with an edge length of 3.45 mm (or 3.45 λ ). Electromagnetic simulation results were in good agreement with the experimental ones and demonstrated that the size of the mesoscopic particle plays an important role in focalizing the electric field within an area below the diffraction limit. This approach provides an efficient, uncostly, and easy to implement method to substantially improve the responsivity and noise equivalent power of sub-terahertz detectors.

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Characterization of tetraaminediphenyl-based pyroelectric detector from visible to millimeter wave ranges

Cited by 11 publications

References 27 publications

Experimental Proof-Of-Concept of a Spatial Photonic Switch Based on an Off-Axis Zone Plate in Millimeter Wavelength Range

Experimental Proof-Of-Concept of a Spatial Photonic Switch Based on an Off-Axis Zone Plate in Millimeter Wavelength Range

Input Power and Effective Area in Terahertz Detector Measurement: A Review

Responsivity enhancement of a strained silicon field-effect transistor detector at 0.3 THz using the terajet effect

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