Essays about: "Infrared photodetectors"
Showing result 11 - 15 of 16 essays containing the words Infrared photodetectors.
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11. Characterization of InSb quantum dots in InAs matrix grown by molecular beam epitaxy for infrared photodetectors
University essay from KTH/Skolan för informations- och kommunikationsteknik (ICT)Abstract : Materials for the generation and detection of long wavelength IR radiation continue to be of considerable interest for many applications such as night vision, defense and security, rescue, life sciences, industrial processing etc. For this purpose photodetection based on InSb is a well known technology in mid wavelength (3-5 μm) range. READ MORE
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12. Electrical and Optical Charactristics of InP Nanowire Photodetectors
University essay from Tillämpad matematik och fysik (MPE-lab)Abstract : In this project Fourier Transform Infrared Spectroscopy is used to investigate a new kind of photodiode that is based on nanowires. The photo current and I-V curves for different temperatures, different applied biases, in darkness and illumination condition have been studied. READ MORE
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13. Electrical and Optical Characteristics of InP Nanowires based p-i-n Photodetectors
University essay from Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE)Abstract : Photodetectors are a kind of semiconductor devices that convert incoming light to an electrical signal. Photodetectors are classified based on their different structure, fabrication technology, applications and different sensitivity. READ MORE
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14. Electrical and optical characteristics of InP interband nanowire infrared photodetectors
University essay from Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE)Abstract : We have investigated two devices for detection of radiation, typically in the infrared range, Photons are absorbed in an active region of semiconductor devices such that the absorption induces inter band electronic transitions and generate photo-excited charge carriers. A photocurrent is generated between the conducting contacts through the active region of the devices. READ MORE
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15. Optical Characterization of Quantum-Dots-in-a-Well Infrared Photodetectors Under External Perturbations
University essay from Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE)Abstract : In this project we have used Fourier transform infrared spectroscopy to study the photoresponse of two different types of quantum dot-in-a-well infrared photodetectors (DWELL QDIPs). The basic task was to compare the photoresponse of these two detectors, and to study the influence of external resonant laser pumping on the photoresponse. READ MORE
