Compact static imaging spectrometer combining spectral zooming capability with a birefringent interferometer

Li, Jie; Zhu, Jingtao; Qi, Chun; Chuan-Lin, Zheng; Gao, Bo; Zhang, Yunyao; Hou, Xun

doi:10.1364/oe.21.010182

Cited by 19 publications

(7 citation statements)

References 12 publications

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“…A further implementation concerning a multichannel FT spectrometer which employs a WP is reported in [22]. Birefringence is also used in FT imaging spectrometers, which offer significant advantages over implementations using MIs [23][24][25][26][27][28][29]. Birefringent interferometers retain the advantages of traditional FT instruments but are inherently insensitive to mechanical vibrations thanks to their compact and common-path architecture.…”

Section: Introductionmentioning

confidence: 99%

Scanning Fourier transform spectrometer in the visible range based on birefringent wedges

et al. 2016

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We introduce a spectrometer capable of measuring sample absorption spectra in the visible regime, based on a time-domain scanning Fourier transform (FT) approach. While infrared FT spectrometers typically employ a Michelson interferometer to create the two delayed light replicas, the proposed apparatus exploits a compact common-mode passive interferometer that relies on the use of birefringent wedges. This ensures excellent path-length stability (∼λ/300) and accuracy, with no need for active feedback or beam tracking. We demonstrate the robustness of the technique measuring the transmission spectrum of a colored bandpass filter over one octave of bandwidth and compare the results with those obtained with a commercial spectrophotometer.

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Section: Introductionmentioning

confidence: 99%

Scanning Fourier transform spectrometer in the visible range based on birefringent wedges

et al. 2016

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“…Compared with the original FTIS principle verification experimental device with zoomable spectral resolution [41,42], a PMM was added, and the principle verification experimental device was further optimized and designed to be upgraded to a compact The angle of polarization (AOP) can be expressed as:…”

Section: Discussionmentioning

confidence: 99%

“…Traditional CMIS also has the limits of a fixed spectral resolution, low luminous flux, and low SNR brought by slits. In our previous work [40][41][42], a compact static Fourier transform imaging spectropolarimeter and a novel slit-free SBFTIS with a zoomable spectral resolution were proposed, respectively. However, the former still has a slit and a fixed spectral resolution, and the latter has no full polarization detection capability, thus the application of the two is still limited.…”

Section: Introductionmentioning

confidence: 99%

Hyperspectral Channel-Modulated Static Birefringent Fourier Transform Imaging Spectropolarimeter with Zoomable Spectral Resolution

Zhang,

Zhu,

Huang

et al. 2023

Photonics

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A novel channel-modulated static birefringent Fourier transform imaging spectropolarimeter (CSBFTIS) is introduced, which is based on a double Wollaston prism (DWP). With an adjustable air gap (AG), the spectral resolution can be adjusted by changing the AG. The CSBFTIS combines the channel-modulated imaging spectropolarimeter and the slit-free static birefringent Fourier transform imaging spectrometer technology with adjustable spectral resolution. The device is compact and robust, with a wide spectral range and a large luminous flux. Compared with various previous spectropolarimeters, it can greatly reduce the size of the spectral image data to adapt to different application requirements. A prototype is built, and simulation and experiments are carried out, and the results prove the effectiveness of the method.

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“…Efficient large étendue imaging instruments usually rely on a shearing interferometer, most often a cyclic interferometer [1][2][3][4] or a roof-prism mirrors Michelson interferometer [5,6,8]. For more compact setups, birefringent shearing interferometers like Savart plates [9][10][11] a Armande Pola Fossi is now with Thales LAS France SAS, 2 avenue Gay- or Double-Wollaston prism devices [12,13] are often used, either for imaging spectrometry or for non-imaging spectrometry. Other designs with birefringent interferometers, aside from lateral shearing interferometers, have also been developed for Fourier transform spectrometry [14][15][16][17][18][19][20] or polarimetry [21,22].…”

Section: Introductionmentioning

confidence: 99%

Numerical modeling of nominal and stray waves in birefringent interferometers: application to large-field-of-view imaging Fourier transform spectrometers

et al. 2018

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Birefringent interferometers are often used for compact static Fourier transform spectrometers. In such devices, several uniaxial birefringent parallel or prismatic plates are stacked, with their optical axes set so that there is an efficient coupling from ordinary to extraordinary and extraordinary to ordinary eigenmodes of two successive plates. Such coupling, aside from few particular cases, is however not perfect, an effect that may adversely affect performance. In order to help the design and the tolerancing of these interferometers, we have developed a numerical modeling, based on the propagation of plane waves inside and through the interface of birefringent media. This tool evaluates the traveled optical path length and the amplitude of the different polarization modes, enabling to predict both the optical path differences on the interferometer outputs and the unwanted coupling strengths and related stray wave amplitudes. The tool behavior is illustrated on Savart and Double-Wollaston interferometers, and compared with experimental characterization of a calcite Double-Wollaston prism. OCIS codes: (260.1440) Birefringence; (120.6200) Spectrometers and spectroscopic instrumentation; (110.4234) Multispectral and hyperspectral imaging; (120.0280) Remote sensing and sensors; (120.4570) Optical design of instruments; (300.6300) Spectroscopy, Fourier transforms; (220.4830) Systems design.

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Compact static imaging spectrometer combining spectral zooming capability with a birefringent interferometer

Cited by 19 publications

References 12 publications

Scanning Fourier transform spectrometer in the visible range based on birefringent wedges

Scanning Fourier transform spectrometer in the visible range based on birefringent wedges

Hyperspectral Channel-Modulated Static Birefringent Fourier Transform Imaging Spectropolarimeter with Zoomable Spectral Resolution

Numerical modeling of nominal and stray waves in birefringent interferometers: application to large-field-of-view imaging Fourier transform spectrometers

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