Free-standing subwavelength metallic gratings for snapshot multispectral imaging

被引：57

作者：

Haidar, Riad ^{[1
]}

Vincent, Gregory ^{[1
,2
]}

Collin, Stephane ^{[2
]}

Bardou, Nathalie ^{[2
]}

Guerineau, Nicolas ^{[1
]}

Deschamps, Joel ^{[1
]}

Pelouard, Jean-Luc ^{[2
]}

机构：

[1] Off Natl Etud & Rech Aerosp, French Aerosp Lab, F-91761 Palaiseau, France

[2] CNRS, LPN, F-91460 Marcoussis, France

来源：

APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 22期

关键词：

band-pass filters; cameras; diffraction gratings; drilling; imaging; optical fabrication; optical filters; TRANSMISSION; ARRAYS; RESONANCES; SLITS;

D O I：

10.1063/1.3442487

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A mosaic of ten spectral filters has been fabricated in a single 20 mm(2) membrane drilled by nanoslits and coated by a gold layer. The nanostructured core-shell gratings exhibit 70% average maximum transmission efficiency in 15% aperture area, which represents a fivefold enhancement compared to the geometrical transmission. This mosaic of bandpass filters regularly spaced in the 3-5 mu m wavelength range is used to demonstrate real-time spectral imaging in a multichannel camera. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3442487]

引用

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