Detection and upconversion of three-dimensional MMW/THz images to the visible

Avihai Aharon (Akram); Daniel Rozban; Avi Klein; Amir Abramovich; Yitzhak Yitzhaky; Natan S. Kopeika

doi:doi:10.1364/PRJ.4.000306

Photonics Research, 2016, 4 (6): 06000306, Published Online: Dec. 23, 2016

Detection and upconversion of three-dimensional MMW/THz images to the visible Download： 1375次

Avihai Aharon (Akram) ^1,2,*Daniel Rozban ^1,3Avi Klein ¹Amir Abramovich ¹Yitzhak Yitzhaky ³Natan S. Kopeika ^2,3

Author Affiliations

¹ Department of Electrical and Electronic Engineering, Ariel University, Ariel, Israel

² Department of Electrical and Computer Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel

³ Department of Electro-Optical Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel

Figures & Tables

Fig. 1. Experimental setup of the upconversion detection: (a) schematic, (b) picture.

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Fig. 2. Detected signal from the photodetector (signal A, 76 mV peak to peak) and modulation signal of the MMW/THz radiation (signal B) on the same time axis.

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Fig. 3. Detected signal from the photodetector (solid line) and the detected signal from the electronic circuit without amplifier (dashed line) as a function of the GDD DC bias current.

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Fig. 4. Detected signal from the photodetector (signal A) and modulation signal of the MMW/THz radiation (signal B). The response time of the detection using the PDB210A photodetector was found to be 480 ns.

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Fig. 5. Setup configuration for the upconversion imaging system using a GDD and photodetector.

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Fig. 6. Pictures of the setup configuration for the upconversion imaging system using a GDD and photodetector, imaging mirror, and metal object with a size of 8 cm×10 cm and letter width of 2 cm.

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Fig. 7. Imaging results: (a) the raw upconverted MMW/THz image, (b) the image after thresholding low values.

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Fig. 8. Setup configuration for an optical FMCW experiment at 100 GHz using a photodetector and GDD lamp N523 in side configuration, connected to the detection electronic circuit and external amplifier.

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Fig. 9. Detected signal A and modulation signal B for the FMCW experiment: (a) upconversion optical heterodyne detection, (b) electronic heterodyne detection.

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Fig. 10. FFT of the detected signal from the FMCW experiment: (a) upconversion optical heterodyne detection, (b) electronic heterodyne detection.

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Avihai Aharon (Akram), Daniel Rozban, Avi Klein, Amir Abramovich, Yitzhak Yitzhaky, Natan S. Kopeika. Detection and upconversion of three-dimensional MMW/THz images to the visible[J]. Photonics Research, 2016, 4(6): 06000306.

Detection and upconversion of three-dimensional MMW/THz images to the visible Download： 1375次

Fig. 1. Experimental setup of the upconversion detection: (a) schematic, (b) picture.

Fig. 2. Detected signal from the photodetector (signal A, 76 mV peak to peak) and modulation signal of the MMW/THz radiation (signal B) on the same time axis.

Fig. 3. Detected signal from the photodetector (solid line) and the detected signal from the electronic circuit without amplifier (dashed line) as a function of the GDD DC bias current.

Fig. 4. Detected signal from the photodetector (signal A) and modulation signal of the MMW/THz radiation (signal B). The response time of the detection using the PDB210A photodetector was found to be 480 ns.

Fig. 5. Setup configuration for the upconversion imaging system using a GDD and photodetector.

Fig. 6. Pictures of the setup configuration for the upconversion imaging system using a GDD and photodetector, imaging mirror, and metal object with a size of 8 cm×10 cm and letter width of 2 cm.

Fig. 7. Imaging results: (a) the raw upconverted MMW/THz image, (b) the image after thresholding low values.

Fig. 8. Setup configuration for an optical FMCW experiment at 100 GHz using a photodetector and GDD lamp N523 in side configuration, connected to the detection electronic circuit and external amplifier.

Fig. 9. Detected signal A and modulation signal B for the FMCW experiment: (a) upconversion optical heterodyne detection, (b) electronic heterodyne detection.

Fig. 10. FFT of the detected signal from the FMCW experiment: (a) upconversion optical heterodyne detection, (b) electronic heterodyne detection.

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Detection and upconversion of three-dimensional MMW/THz images to the visible Download： 1375次

Fig. 1. Experimental setup of the upconversion detection: (a) schematic, (b) picture.

Fig. 2. Detected signal from the photodetector (signal A, 76 mV peak to peak) and modulation signal of the MMW/THz radiation (signal B) on the same time axis.

Fig. 3. Detected signal from the photodetector (solid line) and the detected signal from the electronic circuit without amplifier (dashed line) as a function of the GDD DC bias current.

Fig. 4. Detected signal from the photodetector (signal A) and modulation signal of the MMW/THz radiation (signal B). The response time of the detection using the PDB210A photodetector was found to be 480 ns.

Fig. 5. Setup configuration for the upconversion imaging system using a GDD and photodetector.

Fig. 6. Pictures of the setup configuration for the upconversion imaging system using a GDD and photodetector, imaging mirror, and metal object with a size of 8 cm×10 cm and letter width of 2 cm.

Fig. 7. Imaging results: (a) the raw upconverted MMW/THz image, (b) the image after thresholding low values.

Fig. 8. Setup configuration for an optical FMCW experiment at 100 GHz using a photodetector and GDD lamp N523 in side configuration, connected to the detection electronic circuit and external amplifier.

Fig. 9. Detected signal A and modulation signal B for the FMCW experiment: (a) upconversion optical heterodyne detection, (b) electronic heterodyne detection.

Fig. 10. FFT of the detected signal from the FMCW experiment: (a) upconversion optical heterodyne detection, (b) electronic heterodyne detection.

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