TITLE

High signal-to-noise Fourier transform spectroscopy with light emitting diode sources

AUTHOR(S)
Bhosale, J. S.
PUB. DATE
September 2011
SOURCE
Review of Scientific Instruments;Sep2011, Vol. 82 Issue 9, p093103
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A temperature tuned light emitting diode (LED) has several advantages over conventional sources for Fourier transform spectroscopy. The large radiation density of LEDs, concentrated in a small spectral region, is ideal for high resolution Fourier transform spectroscopy where a high signal-to-noise (S/N) ratio is desired. A simple, inexpensive LED source leads to a superior performance at high resolutions exceeding that of a tungsten halogen lamp, in the visible region of spectrum.
ACCESSION #
66185181

 

Related Articles

  • LED-based Fourier-transform spectroscopy of H218O in the range 15000—15700 cm−1. Mikhailenko, S. N.; Serdyukov, V. I.; Sinitsa, L. N.; Vasilchenko, S. S. // Optics & Spectroscopy;Dec2013, Vol. 115 Issue 6, p814 

    The spectrum of H 218O in the range 15000–15700 cm −1 has been recorded for the first time on a Fourier-transform spectrometer using a high-brightness light-emitting diode as a radiation source. The measurements have been conducted at room temperature with a resolution of 0.05 cm...

  • Real time quasiparticle tunneling measurements on an illuminated quantum capacitance detector. Stone, K. J.; Megerian, K. G.; Day, P. K.; Echternach, P. M.; Bueno, J.; Llombart, N. // Applied Physics Letters;6/25/2012, Vol. 100 Issue 26, p263509 

    Quasiparticle tunneling events are measured in real time using a quantum capacitance detector (QCD), allowing for the extraction of tunneling rates as a function of temperature and optical loading of radiation coming from a black body source filtered to 200 m. The measurements are used to...

  • Comparison of temperature rise in the pulp chamber with different light curing units: An in-vitro study. Ebenezar, A. V. Rajesh; Anilkumar, R.; Indira, R.; Ramachandran, S.; Srinivasan, M. R. // Journal of Conservative Dentistry;Jul-Sep2010, Vol. 13 Issue 3, p132 

    Aims/Objectives: This in vitro study was designed to measure and compare the temperature rise in the pulp chamber with different light curing units. Materials and Methods: The study was done in two settings-in-vitro and in-vivo simulation. In in-vitro setting, 3mm and 6mm acrylic spacers with...

  • Performance influence of LED beam on indoor visible light communication. Jinguo Quan; Weihao Liu; Shuang Jin; Yan Zhang // Advances in Information Sciences & Service Sciences;Jul2013, Vol. 5 Issue 12, p266 

    Visible light communication (VLC) is becoming the most promising alternative means for the indoor communications since they have a great deal of unprecedented advantages. In this letter, we perform the theoretical studies about the influences of the deployment of the illuminating beam to the...

  • Optimizing the imaging performance of LED light engines. PRABHAT, PRASHANT // Laser Focus World;Aug2015, Vol. 51 Issue 8, p64 

    The article discusses the optimization of the advantages of the light-emitting diodes (LED) light engines. Topics discussed include the key role played by thin film optical fibers in the optimization of the signal-to-noise ratio (SNR), the use of excitation filter, emission filter, and dichroic...

  • Supplemental Blue LED Lighting Array to Improve the Signal Quality in Hyperspectral Imaging of Plants. Mahlein, Anne-Katrin; Hammersley, Simon; Oerke, Erich-Christian; Dehne, Heinz-Wilhelm; Goldbach, Heiner; Grieve, Bruce // Sensors (14248220);Jun2015, Vol. 15 Issue 6, p12834 

    Hyperspectral imaging systems used in plant science or agriculture often have suboptimal signal-to-noise ratio in the blue region (400-500 nm) of the electromagnetic spectrum. Typically there are two principal reasons for this effect, the low sensitivity of the imaging sensor and the low amount...

  • Submersible Spectrofluorometer for Real-Time Sensing of Water Quality. Puiu, Adriana; Fiorani, Luca; Menicucci, Ivano; Pistilli, Marco; Lai, Antonia // Sensors (14248220);Jun2015, Vol. 15 Issue 6, p14415 

    In this work, we present a newly developed submersible spectrofluorometer (patent pending) applied to real-time sensing of water quality, suitable for monitoring some important indicators of the ecological status of natural waters such as chlorophyll-a, oil and protein-like material. For the...

  • A Method for Increasing the Sensitivity and Resolution of NMR Spectroscopy. Setchenkov, M.; Nusratullin, V.; Setchenkova, N.; Nasibullin, R. // Biomedical Engineering;Jan2012, Vol. 46 Issue 1, p1 

    A method for increasing the sensitivity and resolution of NMR spectroscopy based on Fourier transform is suggested. Power Graph software was used to develop a digital algorithm of the NMR signal. This algorithm decreases the noise/signal ratio (U/U). The efficiency of the signal processing...

  • Development of two-dimensional NMR. Kumar, Anil // Resonance: Journal of Science Education;Nov2015, Vol. 20 Issue 11, p995 

    The development of Fourier transform NMR in the mid 1960's, did parallel processing of the collection of NMR data, increased the signal/noise ratio by two orders of magnitude and made it possible to record the proton NMR spectra of small proteins which contain hundreds of resonances. The...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics