Chemical Imaging with a Solid-State near Infrared Spectrometer Based on a Digital Micro-Mirror Array Device Coupled with Hadamard Transform Spectroscopy

Xiang, Dong; Arnold, Mark A.

doi:10.1080/00032719.2012.670799

Cited by 3 publications

(3 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The dual optical path system was replaced by curved gratings and spherical mirrors, and the instrument became more lightweight. In the same year, XIANG Dong of the University of Iowa designed a NIR Hadamard transform spectrometer with a 0.7-inch DMD, tested the absorbance of the instrument, and verified the accuracy of the NIR model with glucose and lactic acid aqueous solution as the tested samples [14][15] . In 2007, D.J.…”

Section: Cmwehlburg Et Al From Sandia International Laboratory In The...mentioning

confidence: 99%

“…The test results of the instrument showed that: The wavelength range is 1000-1780nm, and the spectral resolution is less than 20nm, which realizes the aberration correction and the miniaturization of the optical system. In the same year, Liu Jia et al from Wuhan University designed a near-infrared spectrometer based on 0.55xGA model DMD, and tested the instrument's SNR, optical resolution, wavelength repeatability, speed and other indicators [25] . fig.…”

Section: Cmwehlburg Et Al From Sandia International Laboratory In The...mentioning

confidence: 99%

See 1 more Smart Citation

Research on near infrared spectroscopy based on DMD

liu

song

2023

Earth and Space: From Infrared to Terahertz (ESIT 2022)

View full text Add to dashboard Cite

Near infrared spectroscopy has been applied to qualitative and quantitative analysis in many fields due to its advantages of fast measurement speed, high accuracy and continuous measurement. Digital micromirror array is an electronic input and output optical mems, semiconductor manufacturing technology combined with the height of the integrated circuit manufacturing technology, make its in resolution, contrast, brightness, grayscale, color fidelity and main performance parameters, such as response time reached the high level, high reliability, fast response speed. In recent years, near-infrared spectroscopy based on wavelength grating and modulation characteristics of DMD has become a research hotspot. This system has the advantages of high signal-to-noise ratio, excellent comprehensive performance and low cost, and has attracted much attention in many application fields. In this paper, the principle, development history, application status and development direction of near infrared spectroscopy based on DMD are reviewed, which provides a basis for the related research of DMD near infrared spectroscopy analysis technology.

show abstract

Section: Cmwehlburg Et Al From Sandia International Laboratory In The...mentioning

confidence: 99%

Section: Cmwehlburg Et Al From Sandia International Laboratory In The...mentioning

confidence: 99%

Research on near infrared spectroscopy based on DMD

liu

song

2023

Earth and Space: From Infrared to Terahertz (ESIT 2022)

View full text Add to dashboard Cite

show abstract

“…[8][9] Motivated by the need for hyperspectral imaging of high signal-to-noise-ratio (SNR), many authors have already introduced the Hadamard transform technology to hyperspectral imaging and built imaging spectrometers of various performance. [10][11] This kind of imaging spectrometer uses a MEMS-based spatial modulator (typically a digital micro mirror) for radiation modulation. Compared to a typical dispersive imaging spectrometer, the SNR can be increased by 1-2 orders of magnitude for typical dimensions of the hyperspectral image cube.…”

Section: Introductionmentioning

confidence: 99%

AOTF-based near-infrared imaging spectrometer for rapid identification of camouflaged target

Gao

Zeng

2014

SPIE Proceedings

View full text Add to dashboard Cite

Acousto-optic tunable filter (AOTF) is a novel device for spectrometer. The electronic tunability qualifies it with the most compelling advantages of higher wavelength scan rate over the conventional spectrometers that are mechanically tuned, and the feature of large angular aperture makes the AOTF particularly suitable in imaging applications. In this research, an AOTF-based near-infrared imaging spectrometer was developed. The spectrometer consists of a TeO 2 AOTF module, a near-infrared imaging lens assembly, an AOTF controller, an InGaAs array detector, an image acquisition card, and a PC. A precisely designed optical wedge is placed at the emergent surface of the AOTF to deal with the inherent dispersion of the TeO 2 that may degrade the spatial resolution. The direct digital synthesizer (DDS) techniques and the phase locked loop (PLL) techniques are combined for radio frequency (RF) signal synthesis. The PLL is driven by the DDS to take advantage of both their merits of high frequency resolution, high frequency scan rate and strong spurious signals resistance capability. All the functions relating to wavelength scan, image acquisition, processing, storge and display are controlled by the PC. Calibration results indicate that the spectral range is 898~1670 nm, the spectral resolution is 6.8 nm(@1064 nm), the wavelength separation between frames in the spectral image assembly is 1.0 nm, and the processing time of a single image is less than 1 ms if a TV camera with 640×512 detector is incorporated. A prototype device was assembled to test the capability of differentiating samples with similar appearances, and satisfactory results were achieved. By this device, the chemical compositions and the distribution information can be obtained simultaneously. This system has the most advantages of no moving parts, fast wavelength scan and strong vibration resistance. The proposed imaging spectrometer has a significant application prospect in the area of identification of camouflaged target from complex backgrounds. In addition, only the objective lens and its accessories are required to be replaced for its use in microscopic spectral imaging system, which may be popularized to a large number of other possible applications.

show abstract

Compressed sensing hyperspectral imaging in the 09–25 μm shortwave infrared wavelength range using a digital micromirror device and InGaAs linear array detector

et al. 2018

View full text Add to dashboard Cite

A hyperspectral imaging system based on compressed sensing has been developed to image in the 0.9-2.5 μm shortwave infrared wavelengths. With a programmable digital micromirror device utilized as spatial light modulator, we have successfully performed spectrally resolved image reconstruction with a 256-element InGaAs linear array detector without traditional raster scanning or a push-broom mechanism by a compressed sensing (CS) single-pixel camera approach. The chemical sensitivity of the imaging sensor to near-infrared (NIR) overtone signatures of hydrocarbons was demonstrated using hydrocarbon and ink patterns on glass, showing spectral selectivity for the chemical components. Compared to point-by-point raster scanning, we show that the CS scheme can effectively accelerate image acquisition with lower but reasonable quality.

show abstract

Chemical Imaging with a Solid-State near Infrared Spectrometer Based on a Digital Micro-Mirror Array Device Coupled with Hadamard Transform Spectroscopy

Cited by 3 publications

References 18 publications

Research on near infrared spectroscopy based on DMD

Research on near infrared spectroscopy based on DMD

AOTF-based near-infrared imaging spectrometer for rapid identification of camouflaged target

Compressed sensing hyperspectral imaging in the 09–25 μm shortwave infrared wavelength range using a digital micromirror device and InGaAs linear array detector

Contact Info

Product

Resources

About