Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Marek W. Kowarz"'
Autor:
Prabir K. Dutta, Vitor A. Vulcano Rossi, Marek W. Kowarz, Michael A. Carpenter, Max R. Mullen, Nicholas Karker, Zhouying Zhao
Publikováno v:
Sensors for Extreme Harsh Environments II.
A new design for the miniaturization of an existing oxygen sensor is proposed based on the application of silicon microfabrication technologies to a cm sized O2 sensor demonstrated by Argonne National Laboratory and The Ohio State University which se
Autor:
Marek W. Kowarz
Publikováno v:
Journal of Modern Optics. 42:109-115
New conservation laws are derived for free electromagnetic fields propagating into a half-space. Such fields can be represented by an angular spectrum of electromagnetic plane waves that contains only homogeneous plane waves. The similarity between s
Autor:
Marek W. Kowarz
Publikováno v:
Optics Communications. 110:274-278
It is shown that the conventional energy constraint applied to optimum apodization problems is inappropriate for systems with large numerical apertures. In such cases, the total energy flux should be held fixed rather than the total intensity, which
Autor:
Marek W. Kowarz
Publikováno v:
Physical Review E. 49:890-893
Autor:
Marek W. Kowarz
Publikováno v:
Applied optics. 34(17)
The contributions of homogeneous and evanescent waves to two-dimensional near-field diffraction patterns of scalar optical fields are examined in detail. The total plane-integrated intensities of the two contributions are introduced as convenient mea
Autor:
Wei Chih Liu, Marek W. Kowarz
Publikováno v:
Optics express. 2(5)
An efficient finite-difference frequency-domain method is developed for calculating electromagnetic fields in the neighborhood of subwavelength dielectric and metallic structures. The method is used to investigate two-dimensional near-field and far-f
Autor:
Wei Chih Liu, Marek W. Kowarz
Publikováno v:
Applied optics. 38(17)
Rigorous two-dimensional vector-diffraction patterns of a focused beam incident on an optical disk, specifically, a digital versatile disk (DVD), are examined both in the near field and in the far field. An efficient finite-difference frequency-domai
Autor:
Nader Engheta, Marek W. Kowarz
Publikováno v:
Journal of Applied Physics. 67:639-647
The radiation emitted by electromagnetic sources placed both inside and outside of a homogeneous sphere of chiral media is studied using an exact formulation. For both cases, dyadic Green’s functions are found in terms of spherical vector wave func
Autor:
John C. Brazas, Marek W. Kowarz
Publikováno v:
SPIE Proceedings.
Eastman Kodak Company has developed a diffractive-MEMS spatial-light modulator for use in printing and display applications, the grating electromechanical system (GEMS). This modulator contains a linear array of pixels capable of high-speed digital o
Publikováno v:
Technical Digest. MEMS 2002 IEEE International Conference. Fifteenth IEEE International Conference on Micro Electro Mechanical Systems (Cat. No.02CH37266).
A diffractive optical MEMS device for spatial and temporal light modulation is described that is capable of high-speed digital operation. The device contains electromechanical ribbons suspended flat above a silicon substrate by a periodic series of i