Zobrazeno 1 - 10
of 145
pro vyhledávání: '"J D Winefordner"'
Publikováno v:
Laser Chemistry. 2009:1-14
This paper describes the experimental realization and characterization of a versatile single particle detection apparatus. The system utilizes a novel particle beam inlet that can serve as either an on-line particle concentrator (i.e., all diameters
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1affe9a663c0a058386a9ff3d8a4d1af
https://doi.org/10.1155/2009/474858
https://doi.org/10.1155/2009/474858
Publikováno v:
Applied Spectroscopy. 54:175-180
An atomic mercury resonance image detector with microchannel plate amplification and charge-coupled device (CCD) detection is evaluated. A thin Pt film on the surface of the input window of the resonance ionization image detector (RIID) eliminated th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d199c6249362303d789d673e8a75057
https://doi.org/10.1366/0003702001949348
https://doi.org/10.1366/0003702001949348
Publikováno v:
Journal of Applied Physics. 86:5337-5341
A novel method of ultrahigh-resolution, frequency-resolved imaging using atomic vapor cells is proposed. The method is based on the accurate measurement of the fluorescence signal intensity distribution along the absorption path length when the signa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7fab6d4efa5c3e43126acf220c5c40a8
https://doi.org/10.1063/1.371529
https://doi.org/10.1063/1.371529
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 52:1139-1149
The spectral characteristics of mercury Rydberg states (n = 10–42) were observed and studied. Each principal quantum number was observed as a triplet, and after observing a quartet of lines for n = 10, 11, and 12, these lines were assigned, from re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2c2a99193d9d7b566900cda528ad667
https://doi.org/10.1016/s0584-8547(97)00023-2
https://doi.org/10.1016/s0584-8547(97)00023-2
Publikováno v:
Applied Spectroscopy. 51:798-803
A method for the optical detection of the resonance ionization signal of mercury atoms in a buffer gas is described that is based on the emission from buffer gas atoms that are collisionally excited by interactions with electrons in a strong electric
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80bbe1e347c02b8a0ca6f43a2464cb2c
https://doi.org/10.1366/0003702971941313
https://doi.org/10.1366/0003702971941313
Publikováno v:
Critical Reviews in Analytical Chemistry. 27:1-26
Methods used for trace (sub-ppm) detection of mercury are reviewed. Included are spectrometric methods such as atomic absorption, fluorescence, emission, and mass spectrometry; electrochemical methods; and as radiometric methods as well as other comm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f80670f93587a7f42710d4736f4954d
https://doi.org/10.1080/10408349708050578
https://doi.org/10.1080/10408349708050578
Publikováno v:
Applied Physics B Laser and Optics. 62:457-464
A commercially available neon indicator lamp in a Relaxation Oscillator (RO) configuration has been demonstrated to be capable of detecting light intensities of the order of nanowatts under ambient light conditions with a subpicometer spectral resolu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8e560cad2f16583a7bb1e560a4c9577
https://doi.org/10.1007/bf01081044
https://doi.org/10.1007/bf01081044
Autor:
J. A. McHard, J. D. Winefordner
Publikováno v:
Analytical chemistry. 44(11)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78487d1bc8c71dc97b685e0ca21bc7f5
https://pubmed.ncbi.nlm.nih.gov/22324625
https://pubmed.ncbi.nlm.nih.gov/22324625
Autor:
W. S. Sutherland, J. D. Winefordner
Publikováno v:
Journal of Raman Spectroscopy. 22:541-549
The results obtained using a variety of new solid supports for the preparation of surface-enhanced Raman-active substrates via direct chemical reduction of silver salts and by vacuum vapor deposition of metallic silver are presented. These supports i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15d021482d6c630364cc78ed45760f38
https://doi.org/10.1002/jrs.1250221002
https://doi.org/10.1002/jrs.1250221002
Publikováno v:
Applied Physics Letters. 72:1673-1675
Narrow-band spectrally selective image detection based upon the resonance ionization of mercury atoms in a low pressure cell is described. Image dimensions and intensities were measured versus the wavelength of ionizing laser radiation and the depend
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51960f4b59a303e768c094c4edb16967
https://doi.org/10.1063/1.121149
https://doi.org/10.1063/1.121149