Invention Grant
- Patent Title: Methods and apparatus for modulating light with phase change materials
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Application No.: US16263071Application Date: 2019-01-31
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Publication No.: US11320647B2Publication Date: 2022-05-03
- Inventor: Jeffrey Chou , Vladimir Liberman , Juejun Hu , Yifei Zhang , William Herzog , Jason Stewart , Christopher Roberts
- Applicant: Massachusetts Institute of Technology
- Applicant Address: US MA Cambridge
- Assignee: Massachusetts Institute of Technology
- Current Assignee: Massachusetts Institute of Technology
- Current Assignee Address: US MA Cambridge
- Agency: Smith Baluch LLP
- Main IPC: G02F1/01
- IPC: G02F1/01 ; G02B26/06 ; G02B26/02 ; G02B5/20 ; G02B27/09
Abstract:
Alloys of GeSbSeTe (GSST) can be used to make actively tunable infrared transmission filters that are small, fast, and solid-state. These filters can be used for hyperspectral imaging, 3D LIDAR, portable bio/chem sensing systems, thermal emission control, and tunable filters. GSST is a low-loss phase-change material that can switch from a low-index (n=3), amorphous state to a high-index (n=4.5), hexagonal state with low loss (k
Public/Granted literature
- US20190235228A1 Methods and Apparatus for Modulating Light with Phase Change Materials Public/Granted day:2019-08-01
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