Invention Grant
- Patent Title: Direction-selective interferometric optical filter
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Application No.: US15517213Application Date: 2015-10-07
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Publication No.: US10036839B2Publication Date: 2018-07-31
- Inventor: Maik Langner , Hartmut Fröb , Vadim G. Lyssenko , Markas Sudzius , Karl Leo
- Applicant: TECHNISCHE UNIVERSITÄT DRESDEN
- Applicant Address: DE Dresden
- Assignee: TECHNISCHE UNIVERSITÄT DRESDEN
- Current Assignee: TECHNISCHE UNIVERSITÄT DRESDEN
- Current Assignee Address: DE Dresden
- Agency: Heslin Rothenberg Farley & Mesiti P.C.
- Priority: DE102014014980 20141007
- International Application: PCT/DE2015/000502 WO 20151007
- International Announcement: WO2016/055046 WO 20160414
- Main IPC: G01J5/28
- IPC: G01J5/28 ; G02B5/28 ; G01J3/26 ; G02B26/00 ; G02B1/00

Abstract:
A direction-selective interferometric optical filter for spectrometric devices, at least includes an arrangement of two layered one-dimensional photonic structures. Each of the two structures contains a defect layer, and each photonic structure has a dispersion function in the energy momentum space (E, kx, ky), wherein kx and ky are momentum components of transmitted photons of the photonic structures for a defined energy (frequency/wavelength) E in the energy momentum space. Both photonic structures have opposite interfaces which are at a plane-parallel distance from one another. In this case, the dispersion functions of both photonic structures cross or intersect in the energy momentum space and produce a cut set of rays of waves on the surfaces of the dispersion functions at a particular energy, wherein a ray of waves contains waves selectively chosen through the filter at an angle, while other waves are reflected by the filter at other angles.
Public/Granted literature
- US20170276849A1 DIRECTION-SELECTIVE INTERFEROMETRIC OPTICAL FILTER Public/Granted day:2017-09-28
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