Zobrazeno 1 - 10
of 92
pro vyhledávání: '"James B. Callis"'
Publikováno v:
The Journal of Physical Chemistry C. 112:8079-8084
Despite the widespread use of luminescence lifetimes in physical measurements, there seems to be no consensus on the best method for lifetime determination. Researchers in this field split into two camps: those who favor methods that proceed from tim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f629d3997f246d2164b4160f3d1710a
https://doi.org/10.1021/jp711867u
https://doi.org/10.1021/jp711867u
Autor:
Martin Gouterman, Nicholas J. Turro, Elizabeth K. Thompson, Steffen Jockusch, James B. Callis, Gamal Khalil
Publikováno v:
Photochemical & Photobiological Sciences. 7:235-239
Direct excitation at 1064 nm and detection of singlet molecular oxygen at 1270 nm is made possible by the availability of powerful YAG-lasers and sensitive NIR photomultipliers. Singlet oxygen was generated in condensed phase at 77 K by direct excita
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d0c4c4cd70b50f82736d6c48d0d15e6
https://doi.org/10.1039/b714286b
https://doi.org/10.1039/b714286b
Autor:
Elizabeth K. Thompson, Steffen Jockusch, Gamal Khalil, Nicholas J. Turro, James B. Callis, Martin Gouterman, Larry R. Dalton
Publikováno v:
Chemical Physics Letters. 435:45-49
Most lanthanide porphyrin derivatives exhibit ‘normal’ absorption spectra with Q and B bands. The rare earth ions have little effect on the absorption spectra, which are much like those of other closed-shell metalloporphyrins. However, their emis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7236c2340561e6d4df1f3fca4305e310
https://doi.org/10.1016/j.cplett.2006.12.042
https://doi.org/10.1016/j.cplett.2006.12.042
Publikováno v:
Experiments in Fluids. 40:203-211
The dynamic and static surface pressure on a square cylinder during vortex shedding was measured with pressure sensitive paints (PSPs) at three angles of incidence and a Reynolds number of 8.9×104. Oscillations in the phosphorescence intensity of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::668ed067bf6c5de8cd81241335499565
https://doi.org/10.1007/s00348-005-0059-8
https://doi.org/10.1007/s00348-005-0059-8
Autor:
James B. Callis, Wayne Shinoki, Gamal Khalil, Alice Chin, Masoud Ghandehari, Martin Gouterman, Larry R. Dalton, River Wan, Fletcher Kimura
Publikováno v:
Research in Nondestructive Evaluation. 16:119-130
A gas-leak-detection system was designed based on the concept of oxygen-level measurement. Optical fibers were produced with gas-permeable polymeric cladding material doped with oxygen-responsive p...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3895c66458f4dbe4e559342f55aac11
https://doi.org/10.1080/09349840591008208
https://doi.org/10.1080/09349840591008208
Publikováno v:
Journal of Luminescence. 113:33-44
We report the effect of dye concentration on luminescence quenching and decay lifetime for metallo-porphyrin dye molecules in polymeric film. In particular we report on films containing platinum tetra(pentafluorophenyl)porphine (PtTFPP), platinum oct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dbd5f246e84245679dc495f76d8a5867
https://doi.org/10.1016/j.jlumin.2004.08.049
https://doi.org/10.1016/j.jlumin.2004.08.049
Autor:
Gamal Khalil, Martin Gouterman, James B. Callis, Jim Crafton, Larry R. Dalton, Grant Jones, Colin D. Costin, Severin Grenoble
Publikováno v:
Sensors and Actuators B: Chemical. 97:13-21
Pressure-sensitive paint (PSP) is playing an important role in aerodynamic testing. Its use provides a number of advantages over discrete pressure taps traditionally used on conventional wind tunnel models: (i) obtaining continuous quantitative press
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a3ff376b3489844ecc1d7518093b172
https://doi.org/10.1016/s0925-4005(03)00484-2
https://doi.org/10.1016/s0925-4005(03)00484-2
Autor:
James B. Callis, Gregory D. Phelan, Gamal Khalil, Larry R. Dalton, Kimberly S. F. Lau, Martin Gouterman, Brenden Carlson
Publikováno v:
Review of Scientific Instruments. 75:192-206
Europium beta diketonates are easily synthesized highly luminescent complexes with high temperature sensitivity. We report on the temperature dependence of the luminescence of recently synthesized europium complexes originally prepared for use as lig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::297ee7557edc5ba6caa4a290867a5d7a
https://doi.org/10.1063/1.1632997
https://doi.org/10.1063/1.1632997
Publikováno v:
Review of Scientific Instruments. 74:5260-5266
A new concept in sound pressure detection, the phosphorescence microphone, is introduced. This device replaces the diaphragm of a microphone with a thin film of pressure sensitive paint. Dynamic changes in pressure are detected by monitoring the chan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8484edcf28495ded4ba6dfdace0b2fff
https://doi.org/10.1063/1.1626009
https://doi.org/10.1063/1.1626009
Autor:
James B. Callis, Larry R. Dalton, Biniam Zelelow, Gamal Khalil, Brenden Carlson, Martin Gouterman, Greg D Phelan
Publikováno v:
Sensors and Actuators B: Chemical. 96:304-314
Two newly synthesized luminescent compounds provide a lifetime based dual pressure and temperature sensor when jointly dissolved in a polymer matrix. The temperature sensor is a tris(β-diketonate) phenanthroline europium complex, with a broad absorp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47d87c747c01937c02bac57253b7db2a
https://doi.org/10.1016/s0925-4005(03)00547-1
https://doi.org/10.1016/s0925-4005(03)00547-1