Advancements of uncooled infrared microbolometer materials: A review

A SiGe/Si Nanostructure with Graphene Absorbent for Long Wavelength Infrared Detection

“…Compared to photodetectors, uncooled thermal detectors have the advantages of small size, low power consumption, and low cost. Therefore, these detectors hold great promise for large-scale commercial applications of night vision and surveillance cameras. − …”

Sensitive Thermography via Sensing Visible Photons Detected from the Manipulation of the Trap State in MAPbX3

“…Beyond visible or near-infrared photons, the acquisition of thermal radiation from the target can provide more identifiable details under weak visible light conditions disregarding disturbance from the normal background. , Benefiting from this merit, until now, thermal sensing techniques have been intensely explored in many fields, for example, night vision, medical science, , electronic systems, security, and artificial intelligence . Especially, as the electric car and computational power undergo extraordinary splendor in recent years, thermal detection is showing increasing importance in their intelligent safety systems for ensuring the safety in battery packs, server clusters, etc .…”

Resonant Anti-Reflection Metasurfaces for Infrared Transmission Optics

“…In the long-wave infrared band from 7 to 14 μm, for applications such as thermal imaging, high transmission efficiency is key for desirable performance due to the intensitysensing nature of microbolometer-array-based detectors. 1,2 Single-layer or multilayer thin film interference coatings are today's standard for anti-reflection and transmission enhancement and are well developed. 3−5 However, this approach requires materials specific coating stack engineering, which can be difficult and time-consuming depending on the system.…”

“…Increasing the transmission efficiency of optical components is broadly desirable in optical system design across all wavelengths. In the long-wave infrared band from 7 to 14 μm, for applications such as thermal imaging, high transmission efficiency is key for desirable performance due to the intensity-sensing nature of microbolometer-array-based detectors. , Single-layer or multilayer thin film interference coatings are today’s standard for anti-reflection and transmission enhancement and are well developed. − However, this approach requires materials specific coating stack engineering, which can be difficult and time-consuming depending on the system. − This is because coating materials with a desirable refractive index and absorption over a given band may not exist and must be mechanically compatible with other stack materials. These difficulties are compounded by the desire for stacks that achieve some combination of durability, angular acceptance, and polarization insensitivity.…”