Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Joshua L. Kann"'
Publikováno v:
Ultramicroscopy. 57:251-256
A hybrid finite-difference-time-domain and angular spectrum technique is used to model near-field optical probe fields and the interaction of the fields with a pyrex substrate. Included in this analysis is a study of the effect of various nanometer s
Autor:
Frederick B. McCormick, Joshua L. Kann
Publikováno v:
Applied optics. 37(19)
Scattering effects in a two-photon optical data storage system are numerically studied. Surface scattering analysis with a scalar, beam propagation model is performed. We analyze the problem by modeling scattering from randomly varying surfaces and a
Autor:
Trae Holcomb, Joshua L. Kann, Ann C. Slavin, Robert Q. Fugate, Andrea L. Tuffli, William H. Lowrey, James M. Spinhirne, Jim F. Riker, James M. Brown
Publikováno v:
SPIE Proceedings.
Progress on active tracking at the Starfire Optical Range (SOR) has been significant in the years 2003-2004. We have obtained laser returns from a number of retro-reflector and also unaugmented satellite objects, and compared the signal returns to th
Publikováno v:
Applied optics. 36(24)
A finite-difference-time-domain and two finite-difference-thermal models are used to study various heating mechanisms in a near-field optical system. It is shown that the dominant mechanism of sample heating occurs from optical power that is transfer
Autor:
Joshua L. Kann, Fred F. Froehlich, Justin B. Judkins, Tomas D. Milster, Richard W. Ziolkowski
Publikováno v:
SPIE Proceedings.
A hybrid finite-difference-time-domain/angular spectrum propagation modeling technique and a finite-difference thermal model are used to study near-field optical and two- photon absorption data storage systems. The electromagnetic model is used to an
Publikováno v:
SPIE Proceedings.
In this paper, experimental results are reported on optoelectronic feedback sustained pulsation in multi-quantum well InGaAsP laser diodes at 1300 nm and AlGaAs injection laser diodes at 780 nm. The feedback intensity plays an important role in feedb
Autor:
Fred F. Froehlich, Tomas D. Milster, Jeffrey P. Treptau, J. K. Erwin, Mark S. Wang, Joshua L. Kann
Publikováno v:
SPIE Proceedings.
We describe performance of a differential spot-size (wax-wane) focus servo. Crosstalk from the tracks are analyzed in the single detector and differential focus circuits. Magnitude of the crosstalk is reduced by a factor of three in the differential
Publikováno v:
Journal of the Optical Society of America A. 12:501
A finite-difference time-domain code is used to model near-zone electromagnetic probe fields of subwavelength dimensions and the interactions of these fields with a dielectric sample. The magnitude and the phase of the electric and the magnetic field
Conference
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