نتایج جستجو برای: infrared spectrometer

تعداد نتایج: 123942  

2002
Peter Bernath

ACE is a Canadian satellite mission that will measure and help to understand the chemical and dynamical processes that control the distribution of ozone in the stratosphere. The ACE instruments are a Fourier transform infrared spectrometer, a UV/visible/near IR spectrograph and a two channel solar imager, all working in solar occultation mode.

Journal: :Optics express 2008
Qiang Zhang Carsten Langrock M M Fejer Yoshihisa Yamamoto

A periodically poled lithium niobate (PPLN) waveguide-based single-pixel up-conversion infrared spectrometer was demonstrated. Sum-frequency generation between a 1.5-microm-band scanning pump laser and a 1.3-microm-band signal generated visible radiation which was detected by a silicon single-photon detector. The up-conversion spectrometer's sensitivity was two-orders-of-magnitude higher than t...

2016
Andreas C. Liapis Boshen Gao Mahmudur R. Siddiqui Zhimin Shi Robert W. Boyd

Articles you may be interested in High sensitivity and high Q-factor nanoslotted parallel quadrabeam photonic crystal cavity for real-time and label-free sensing Appl. Photonic crystal slot waveguide absorption spectrometer for on-chip near-infrared spectroscopy of xylene in water Appl. Measurements of total peroxy and alkyl nitrate abundances in laboratory-generated gas samples by thermal diss...

2001
Michael J. Wolff

We present Hubble Space Telescope (HST) Near-Infrared Camera and Multi-object Spectrometer (NICMOS) observations of the reflection nebulosity associated with the T Tauri star HH 30. The images show the scattered light pattern characteristic of a highly inclined, optically thick disk with a prominent dustlane whose width decreases

2005
Xiaoming Gao Lunhua Deng Weidong Chen Daniel Boucher Frank K. Tittel

We report on development of a widely tunable infrared (3.4-4.5 μm) continuous-wave laser spectrometer based on difference frequency generation in a periodically poled RbTiOAsO4 crystal and its application to isotope analysis of CH4/CH4. ©2006 Optical Society of America OCIS codes: (190.2620) Frequency conversion; (190.4400) Nonlinear optics, material; (300.6360) Laser spectroscopy

2016
Tino Pügner Jens Knobbe Heinrich Grüger

Near-infrared (NIR) spectroscopy is a well-established technique for the chemical analysis of organic and inorganic matter. Accordingly, spectroscopic instrumentation of different complexity has been developed and is currently commercially available. However, there are an increasing number of new mobile applications that have come into focus and that cannot be addressed by the existing technolo...

Journal: :Optics express 2005
Albert Schliesser Markus Brehm Fritz Keilmann Daniel van der Weide

We demonstrate real-time recording of chemical vapor fluc-tuations from 22m away with a fast Fourier-transform infrared (FTIR) spectrometer that uses a laser-like infrared probing beam generated from two 10-fs Ti:sapphire lasers. The FTIR's broad 9-12 microm spectrum in the "molecular fingerprint" region is dispersed by fast heterodyne self-scanning, enabling spectra at 2cm-1 resolution to be r...

2009
Wei Wei Shanglian Huang Ning Wang Zhu Jin Jie Zhang Weimin Chen

A near-infrared spectrometer based on novel MOEMS grating light modulators is proposed. The spectrum detection method that combines a grating light modulator array with a single near-infrared detector has been applied. Firstly, optics theory has been used to analyze the essential principles of the proposed spectroscopic sensor. Secondly, the grating light modulators have been designed and fabri...

2005
Roland Harig

Passive remote sensing by infrared spectrometry allows detection and identification of hazardous clouds from long distances. Typical applications of the method are automatic surveillance of industrial facilities and identification of hazardous clouds after chemical accidents. A conventional remote sensing Fourier transform infrared spectrometer is based on an interferometer with a single detect...

2007
Natascha Oppelt Wolfram Mauser

The Airborne Visible / Infrared imaging Spectrometer AVIS is a hyperspectral imager designed for environmental monitoring purposes. The sensor, which was constructed entirely from commercially available components, has been successfully deployed during several experiments between 1999 and 2007. We describe the instrument design and present the results of laboratory characterization and calibrat...

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