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Design and Development of Full-Spectrum Photodetectors

2025-01-09 17:37

In recent years, the booming optoelectronic industry has changed the world and extended into many aspects of life. Among them, photodetectors (PDs) with a wide response bandwidth from deep ultraviolet to visible to near-infrared serve as important optoelectronic components and play a key role in daily life.
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08

2025-01

Black arsenene multi-spectral integrated field-effect transistors, aiding high-resolution imaging and enhanced secure communication.

With the development of modern communication technology, the demand for broadband, room-temperature infrared, and terahertz (THz) detectors has rapidly increased. These detectors play a crucial role in fields such as telecommunications, security inspection, non-destructive testing, and medical diagnostics. However, existing optical detectors face challenges such as high intrinsic dark current and the need for low-temperature cooling, which limit their efficiency in detecting low-energy photons. Particularly in the terahertz band, the photon energy is insufficient to excite electron transitions from the valence band maximum (VBM) to the conduction band minimum (CBM), making effective optoelectronic conversion difficult. Therefore, researchers have been seeking ultra-broadband detectors that can operate at room temperature and respond to wavelengths ranging from visible light to the terahertz band.

01

2025-01

Design and Development of Full-Spectrum Photodetectors

In recent years, the rapidly growing optoelectronic industry has changed the world and extended into many aspects of life. Among them, photodetectors (PDs) with a wide spectral response from deep ultraviolet to visible to near-infrared serve as important optoelectronic components and play a key role in daily life.

31

2024-12

High-sensitivity quantum dot photodetectors from deep ultraviolet to near-infrared

In recent years, the rapidly growing optoelectronic industry has changed the world and extended into many aspects of life. Among them, photodetectors (PD) with deep ultraviolet-visible-near infrared full spectrum detection response serve as important optoelectronic components, playing a key role in daily life.

31

2024-12

Next-generation high-quality, low-cost revolutionary full infrared band imaging technology

According to a report by Maimus Consulting, recently, Professor Mohsen Rahmani from Nottingham Trent University (NTU) and his research team announced that they are developing a revolutionary infrared imaging technology that can achieve high-resolution imaging across the entire infrared spectrum. This breakthrough is expected to completely change the limitations of existing technologies.

30

2024-12

Laser-based tiered neurons achieve high-speed reservoir computing.

Neuromorphic computing is a computational paradigm that simulates the functions and architecture of biological neurons. A single biological neuron is a powerful computational unit with information processing capabilities, information transmission abilities, and memory functions. Therefore, it is crucial to design a photonic neuromorphic processor that can truly emulate the powerful computational functions of biological neurons.

26

2024-12

Mid-infrared nonlinear Fourier stacked imaging

Mid-infrared imaging can obtain unique information such as target radiation temperature and chemical composition, and has wide applications in fields such as biomedical science, materials science, and environmental monitoring. For a long time, the development of large field of view, high resolution, and high sensitivity mid-infrared imaging technology has been an important goal pursued in the field of infrared measurement and control, providing key support to meet the application needs of extreme scenarios such as high throughput and low illumination, for example, long-distance infrared remote sensing, deep penetration imaging, low light toxicity biological tissue observation, and non-destructive detection of photosensitive materials.

26

2024-12

Analysis of Patent Trends for Quantum Dot Photodetectors

According to Memes Consulting, Quantum Dots (QDs), also known as Semiconductor Nanocrystals, are quasi-zero-dimensional semiconductor nanostructures (spherical or nearly spherical) with size-tunable properties, typically ranging in diameter from 2 to 20 nanometers.

23

2024-12

Using liquid crystal integrated metasurfaces to achieve actively tunable terahertz surface wave broadband on-chip focusing.

Terahertz functional devices have significant application value in fields such as radar, high-resolution imaging, and biochemical sensing.

23

2024-12

Revealing the charge density wave phase transition mechanism of 1T-TaS₂ provides ideas for new types of infrared detectors.

20

2024-12

Deep trap ultraviolet long afterglow luminescent materials for optical information storage in bright field environments.

Long afterglow luminescent materials are a special type of photoluminescent materials that can continue to emit light even after the external excitation (such as ultraviolet light, high-energy X-rays, sunlight, etc.) has stopped. The duration of the luminescence can range from a few seconds to several weeks.