Compressive dual-comb spectroscopy

AbstractBroadband, high resolution, and rapid measurements of dual-comb spectroscopy (DCS) generate a large amount of data stream. We numerically demonstrate significant data compression of DCS spectra by using a compressive sensing technique. Our numerical simulation shows a compression rate of more than 100 with a 3% error in mole fraction estimation of mid-infrared (MIR) DCS of two molecular species in a broadband (~ 30 THz) and high resolution (~ 115 MHz) condition. We also numerically demonstrate a massively parallel MIR DCS spectrum of 10 different molecular species can be reconstructed with a compression rate of 10.5 with a transmittance error of 0.003 from the original spectrum.

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TESTING THE HYPOTHESIS THAT METHANOL MASER RINGS TRACE CIRCUMSTELLAR DISKS: HIGH-RESOLUTION NEAR-INFRARED AND MID-INFRARED IMAGING

The Astrophysical Journal ◽

10.1088/0004-637x/754/2/149 ◽

2012 ◽

Vol 754 (2) ◽

pp. 149 ◽

Cited By ~ 12

Author(s):

James M. De Buizer ◽

Anna Bartkiewicz ◽

Marian Szymczak

Keyword(s):

High Resolution ◽

Near Infrared ◽

Infrared Imaging ◽

Circumstellar Disks ◽

Mid Infrared ◽

Methanol Maser

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Morphokinematic properties of the 21 micron source IRAS 22272+5435

Proceedings of the International Astronomical Union ◽

10.1017/s174392131201191x ◽

2011 ◽

Vol 7 (S283) ◽

pp. 458-459

Author(s):

Jun-ichi Nakashima ◽

Sun Kwok ◽

Bosco H. K. Yung ◽

Yong Zhang ◽

Nico Koning ◽

...

Keyword(s):

High Resolution ◽

Angular Size ◽

Mid Infrared ◽

Preliminary Results ◽

Molecular Envelope

AbstractWe obtained a high-resolution CO map of IRAS 22272+5435 in the CO J = 2–1 line using CARMA. The target exhibits a second biggest angular size of the circumstellar molecular envelope among known 21 μm sources. In the preliminary results, we found that the CO properties of IRAS 22272+5435 is clearly different from those of IRAS 07134+1005, which is another well-investigated 21 μm source. For example, elongations seen in the mid-infrared and CO images are extended in mutually perpendicular directions, although in case of IRAS 07134+1005 the CO feature coincides well with the mid-infrared structure.

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Adaptive Directional Lifting Structure of Three Dimensional Non-Separable Discrete Wavelet Transform for High Resolution Volumetric Data Compression

IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences ◽

10.1587/transfun.e99.a.892 ◽

2016 ◽

Vol E99.A (5) ◽

pp. 892-899 ◽

Cited By ~ 4

Author(s):

Fairoza Amira BINTI HAMZAH ◽

Taichi YOSHIDA ◽

Masahiro IWAHASHI ◽

Hitoshi KIYA

Keyword(s):

Wavelet Transform ◽

High Resolution ◽

Data Compression ◽

Discrete Wavelet Transform ◽

Three Dimensional ◽

Discrete Wavelet ◽

Volumetric Data

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Joint Source-Channel Coding in Dictionary Methods of Lossless Data Compression

International Journal of Electronics and Telecommunications ◽

10.2478/v10177-010-0046-8 ◽

2010 ◽

Vol 56 (4) ◽

pp. 351-355

Author(s):

Marcin Rodziewicz

Keyword(s):

Data Compression ◽

Channel Coding ◽

Data Stream ◽

Noisy Channels ◽

Error Resiliency ◽

Joint Source Channel Coding ◽

Lossless Data Compression ◽

Compressed Data ◽

Source Channel Coding

Joint Source-Channel Coding in Dictionary Methods of Lossless Data Compression Limitations on memory and resources of communications systems require powerful data compression methods. Decompression of compressed data stream is very sensitive to errors which arise during transmission over noisy channels, therefore error correction coding is also required. One of the solutions to this problem is the application of joint source and channel coding. This paper contains a description of methods of joint source-channel coding based on the popular data compression algorithms LZ'77 and LZSS. These methods are capable of introducing some error resiliency into compressed stream of data without degradation of the compression ratio. We analyze joint source and channel coding algorithms based on these compression methods and present their novel extensions. We also present some simulation results showing usefulness and achievable quality of the analyzed algorithms.

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Chlorine isotope analysis of polychlorinated organic pollutants using gas chromatography-high resolution mass spectrometry and evaluation of isotope ratio calculation schemes by experiment and numerical simulation

Journal of Chromatography A ◽

10.1016/j.chroma.2021.462311 ◽

2021 ◽

pp. 462311

Author(s):

Caiming Tang ◽

Jianhua Tan ◽

Caixing Tang ◽

Huachun Liu ◽

Peilin Zhang ◽

...

Keyword(s):

Mass Spectrometry ◽

Numerical Simulation ◽

Gas Chromatography ◽

High Resolution ◽

Organic Pollutants ◽

Isotope Ratio ◽

High Resolution Mass Spectrometry ◽

Isotope Analysis ◽

Ratio Calculation ◽

Resolution Mass

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Polarization-independent broadband achromatic metalens in the mid-infrared (3-5 μm) region

Applied Physics Express ◽

10.35848/1882-0786/ac4677 ◽

2021 ◽

Author(s):

Wenhui Xiong ◽

Chenchen Sha ◽

Jianping Ding

Keyword(s):

Numerical Simulation ◽

Infrared Imaging ◽

Chromatic Aberration ◽

Infrared Region ◽

Mid Infrared ◽

Light Manipulation ◽

Wavefront Shaping ◽

Polarization Independent

Abstract With superior capabilities for light manipulation and wavefront shaping, the metasurface recently has caught growing attention. However, the presence of chromatic aberration hinders metasurfaces, especially metalenses, from wider applications. Here, we design a polarization-independent broadband achromatic focusing metalens in the mid-infrared region, which covers continuous bands in 3-5 μm. Numerical simulation shows that different wavelengths can be focused to the same plane with a nearly diffraction-limited resolution, and can achieve an average focusing efficiency of nearly 70% in the whole bandwidth. We expect that our approach can underpin the development of integrated and mid-infrared imaging and detection.

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