Results 151 to 160 of about 21,982 (208)

Photoacoustic Spectroscopy Using a Quantum Cascade Laser for Analysis of Ammonia in Water Solutions. [PDF]

ACS Omega
Apostolakis A, Aoust G, Maisons G, Laurent L, Pereira MF.   +4 more
europepmc   +1 more source

Miniature optical fiber photoacoustic spectroscopy gas sensor based on a 3D micro-printed planar-spiral spring optomechanical resonator. [PDF]

Photoacoustics
Li T, Zhao P, Wang P, Krishnaiah KV, Jin W, Zhang AP.   +5 more
europepmc   +1 more source

Application of fourier transform infrared photoacoustic spectroscopy for quantification of nutrient contents and their plant availability in manure and digestate. [PDF]

Heliyon
Wali K, Khan HA, Sica P, Van Henten EJ, Meers E, Brunn S.   +5 more
europepmc   +1 more source

Machine Learning Enabled Photoacoustic Spectroscopy for Noninvasive Assessment of Breast Tumor Progression In Vivo: A Preclinical Study. [PDF]

ACS Sens
Rodrigues J, Amin A, Chandra S, Mulla NJ, Nayak GS, Rai S, Ray S, Mahato KK.   +7 more
europepmc   +1 more source

Evanescent wave quartz-enhanced photoacoustic spectroscopy employing a side-polished fiber for methane sensing. [PDF]

Photoacoustics
Twomey CF, Biagi G, Ruth AA, Giglio M, Spagnolo V, O'Faolain L, Walsh AJ.   +6 more
europepmc   +1 more source

Integrated, Selective, Simultaneous Multigas Sensing Based on Nondispersive Infrared Spectroscopy-Type Photoacoustic Spectroscopy. [PDF]

ACS Sens
Rodriguez Gutierrez G, Ortiz Perez A, Palzer S.   +2 more
europepmc   +1 more source

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Photoacoustic spectroscopy

Review of Scientific Instruments, 1983
The subject of photoacoustic spectroscopy is reviewed. The basic areas of instrumentation (excitation sources, acoustic cells, and acoustic detectors) are described, and the specific advantages of various designs and techniques are discussed. Results are presented to highlight the applicability of photoacoustic spectroscopy to a wide variety of ...
Gary A. West, Joseph J. Barrett, Donald R. Siebert, K. Virupaksha Reddy   +3 more
exaly   +3 more sources

Standoff photoacoustic spectroscopy

Applied Physics Letters, 2008
Here, we demonstrate a variation of photoacoustic spectroscopy that can be used for obtaining spectroscopic information of surface adsorbed chemicals in a standoff fashion. Pulsed light scattered from a target excites an acoustic resonator and the variation of the resonance amplitude as a function of illumination wavelength yields a representation of ...
Thomas G Thundat
exaly   +2 more sources

Photoacoustic spectroscopy with condensed samples

Applied Optics, 1976
A discussion of the photoacoustic spectroscopy of condensed matter is presented with emphasis on the role of the sample and the sample cell in the photoacoustic signal waveform. The spectrometer and sample cell are described, and an experimental evaluation of the system performance is given.
John F Mcclelland
exaly   +3 more sources

Photoacoustic Spectroscopy of Condensed Matter

Angewandte Chemie International Edition in English, 1978
AbstractPhotoacoustic spectroscopy is a new analytical tool that provides a simple nondestructive technique for obtaining information about the electronic absorption sprctrum of samples such as powders, semisolids, gels, and liquids. It can also be applied to samples which cannot be examined by conventional optical methods.
exaly   +3 more sources