Zobrazeno 1 - 10
of 16
pro vyhledávání: '"H. W. K. Tom"'
Publikováno v:
AIP Conference Proceedings.
The use of positron plasmas to produce intense positron pulses has made it possible to create relatively large instantaneous positronium densities. This in turn provides an opportunity to perform improved precision spectroscopy measurements on positr
Autor:
M. H. Sher, U. Mohideen, H. W. K. Tom, O. R. Wood, G. D. Aumiller, D. L. Windt, W. K. Waskiewicz, J. Sugar, T. J. McIlrath, R. R. Freeman
Publikováno v:
Ultrafast Phenomena VIII ISBN: 9783642849121
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a909ff3f94628c05549c29f3924f0a9
https://doi.org/10.1007/978-3-642-84910-7_86
https://doi.org/10.1007/978-3-642-84910-7_86
Publikováno v:
Ultrafast Phenomena VIII ISBN: 9783642849121
We have measured the evolution of the electron energy distribution excited in a 300 Å Au film by a 180 fsec optical pulse. The distribution is measured directly by UV photoemission with a time-resolution of 270 fsec and an electron energy resolution
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d135efd5c4aa455dea8ec19b27319ac8
https://doi.org/10.1007/978-3-642-84910-7_101
https://doi.org/10.1007/978-3-642-84910-7_101
Publikováno v:
Ultrafast Phenomena VIII ISBN: 9783642849121
Ultrafast Phenomena VIII
Ultrafast Phenomena VIII
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::556fb793841a8f5164f08feb4ee9064d
https://doi.org/10.1007/978-3-642-84910-7_107
https://doi.org/10.1007/978-3-642-84910-7_107
Autor:
U. Mohideen, M. H. Sher, G. D. Aumiller, O. R. Wood, R. R. Freeman, J. Bokor, H. W. K. Tom, P. H. Bucksbaum
Publikováno v:
Shortwavelength V: Physics with Intense Laser Pulses.
This is the first high resolution measurement of the electron energy spectrum from high intensity Above- Threshold Ionization of He and He ion at intensities upto 2.5×1016 W/cm2. The ATI electron energy spectrum from the ionization of He upto an int
Autor:
J. H. Harris, H. W. K. Tom, M. G. Li, Chi H. Lee, S. C. Hsu, Veerendra K. Mathur, D. H. Auston, H. Harde, Th. Sizer, J. D. Kafka, R. K. Jain, Gerard Mourou, C. Gable, Rick Trebino, H. Burggraf, Anthony E. Siegman, S. Williamson, Jürgen Kuhl, A. V. Nurmikko, Paul B. Corkum, S. Sugai, P. R. Smith, M. Hasselbach, Rod S. Taylor, Hoi Sing Kwok
Publikováno v:
Applied Physics B. 28:246-254
Autor:
H. W. K. Tom, O. R. Wood
Publikováno v:
Applied Physics Letters. 54:517-519
The efficiency of x‐ray emission in the 17–35 nm region from laser‐heated solid and gaseous density Ta plasmas has been compared. An x‐ray conversion efficiency of 0.4% from a solid density Ta plasma requires a laser fluence of 200 J/cm2 wher
Autor:
H. W. K. Tom
Publikováno v:
Kinetics of Interface Reactions ISBN: 9783642726774
Recently, optical second-harmonic generation (SHG) has been shown to be a sensitive and versatile surface probe [1]. SHG is sensitive to adsorbate coverage, composition, binding site [2], and molecular orientation on surfaces [3,4]. In addition SHG h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2f693af1ffe524c79fc5815995b631e
https://doi.org/10.1007/978-3-642-72675-0_5
https://doi.org/10.1007/978-3-642-72675-0_5
Publikováno v:
Conference on Lasers and Electro-Optics.
Publikováno v:
Springer Series in Chemical Physics ISBN: 9783642878664
We report experimental studies of coherent transients and collisional relaxation processes in Na vapor, using degenerate four-wave mixing (DFWM) with picosecond pulses. These include investigation of the quantum beat modulation (due to the hyperfine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b2b4ccde25fa11e96f6260cbc88571b
https://doi.org/10.1007/978-3-642-87864-0_62
https://doi.org/10.1007/978-3-642-87864-0_62