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AlexKurz profile picture
AlexKurz created a new article
2 yrs

Electron photodetector with high detection rate and fast response speed | #plasmonic thermionic photodetector

Electron photodetector with high detection rate and fast response speed

Electron photodetector with high detection rate and fast response speed

Light can excite plasmons on the metal surface, and the plasmons can further excite high-energy hot electrons. These hot electrons can cross the metal/semiconductor Schottky junction to form a current, thereby realizing the conversion of light to electricity and realizing optoelectronics.
AlexKurz profile picture
AlexKurz created a new article
2 yrs

How to choose the right photodetector? | #photodetectors

How to choose the right photodetector?

How to choose the right photodetector?

Photodetectors are usually divided into photodetectors and pyroelectric detectors according to their working principles and structures. Photodetectors include vacuum photoelectric devices (photomultiplier tubes, etc.) and solid-state photodetectors (photodiodes, photoconductive detectors,
AlexKurz profile picture
AlexKurz created a new article
2 yrs

Advantages of High Speed Photodiodes | #photodiodes

Advantages of High Speed Photodiodes

Advantages of High Speed Photodiodes

Photodiodes with long n-Ge regions of low doping (LD) concentration exhibit fast response times (≈3 µs) and moderate responsivity (≈1.3 A W-1) in the visible range (520 nm) and in the IR range Response time (≈30 µs) and responsivity (6.4 A W-1) within (1550 nm).
AlexKurz profile picture
AlexKurz created a new article
2 yrs

What is a DFB Laser Diode? | #dfb laser diodes

What is a DFB Laser Diode?

What is a DFB Laser Diode?

Distributed feedback (dfb laser diodes) integrate a grating into a cladding layer surrounding a dh laser diode. Compared to dh laser diodes, this etched (or deposited) diffraction grating offers narrower laser linewidths and high temperature stability.
AlexKurz profile picture
AlexKurz created a new article
2 yrs

What is an Radar altimeter simulator? | #radar Altimeter Simulator

What is an Radar altimeter simulator?

What is an Radar altimeter simulator?

The Radar Altimeter Simulator is a portable FM CW and pulsed radio altimeter simulator based on RF processing technology. Quickly connect to an onboard radio altimeter via two antenna couplers, RF emulates radio altimeter. The simulation range is from 0 meters to 15,000 meters, providing a
AlexKurz profile picture
AlexKurz created a new article
2 yrs

Application of Optical Delay Lines in Terahertz Time Domain Spectroscopy | #optical delay line

Application of Optical Delay Lines in Terahertz Time Domain Spectroscopy

Application of Optical Delay Lines in Terahertz Time Domain Spectroscopy

In a typical photoconductive antenna-based terahertz time-domain spectroscopy system, the photoconductive sampling method is used to collect terahertz time-domain signals. Photoconductive sampling is a detection technology developed based on the inverse process of photoconductive antenna (
AlexKurz profile picture
AlexKurz created a new article
2 yrs

What is a high-precision optical delay line? | #optical fiber delay line

What is a high-precision optical delay line?

What is a high-precision optical delay line?

Aiming at the high precision requirement of the optical fiber delay line, the topology structure of the optical fiber delay line is designed based on the optical switch and optical fiber, and the influence of the optical fiber connection error and optical switch error on the accuracy of th
AlexKurz profile picture
AlexKurz created a new article
2 yrs

How to solve dark current and noise in photodetectors? | #high SPEED PHOTODETECTOR

How to solve dark current and noise in photodetectors?

How to solve dark current and noise in photodetectors?

The HIGH SPEED PHOTODETECTOR refers to the photogenerated current generated by the photodetector under the illumination of incident light, and the dark current can be defined as the leakage current of the detector without incident light. Its size affects the sensitivity of the optical rece
AlexKurz profile picture
AlexKurz created a new article
2 yrs

2 things about high-speed photodetectors measuring pulsed lasers | #photodetectors

2 things about high-speed photodetectors measuring pulsed lasers

2 things about high-speed photodetectors measuring pulsed lasers

photodetectors are often used to measure the waveform of short pulsed laser light. When making this type of measurement, there are two important details to be aware of: the problem of saturation under pulsed laser excitation and the impact of instrument bandwidth on the measurement, which
AlexKurz profile picture
AlexKurz created a new article
2 yrs

What is a good photodetector? | #photodetectors

What is a good photodetector?

What is a good photodetector?

Photodetectors realize the function of converting light into electricity in optical communication systems, which is mainly based on the photovoltaic effect of semiconductor materials. The phenomenon of generating a potential difference. (The photoconductive effect refers to the phenomenon
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