AES has been granted a patent for methods and apparatuses for gas detection using an array of vertical photonic crystal waveguides. The device emits light, guides it through the waveguides, and measures intensity to identify gas species. The technology offers a novel approach to gas detection. GlobalData’s report on AES gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on AES, Dynamic grid loading was a key innovation area identified from patents. AES's grant share as of February 2024 was 58%. Grant share is based on the ratio of number of grants to total number of patents.
Gas detection apparatus using vertical photonic crystal waveguides
A recently granted patent (Publication Number: US11921037B2) discloses an innovative apparatus for gas detection. The apparatus includes a light source that emits light, an array of air-guided, hollow-core vertical photonic crystal waveguides designed to slow and guide the emitted light, and a detector array to measure the light intensity passing through each waveguide. These waveguides are specifically configured to slow and guide light within the absorption bands of the gas species to be detected, allowing for accurate gas detection.
Furthermore, the patent claims also detail a method for gas detection using the described apparatus. The method involves exposing the apparatus to a gaseous environment, allowing gas to flow through the waveguides, and reading values from the detectors to identify the presence of the gas species. The waveguides in the array support a complete band gap for all polarizations, enhancing the efficiency and accuracy of the gas detection process. Additionally, the method allows for flexibility in the choice of light source, which can be an LED, a tunable laser, or an array of LEDs or lasers, providing versatility in gas detection applications.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
