Results 251 to 260 of about 3,455,218 (297)
Some of the next articles are maybe not open access.
OPTICAL LIMITING IN SEMICONDUCTORS
Applied Physics Letters, 1969The nonlinear absorption coefficients of Si from 146 to 452°K and of CdSe, CdTe, and GaAs at 300°K were measured with a Nd:YAlG Q-switched laser. The reported stepwise nature of nonlinear absorption for Si is confirmed, but the assignment of a three-photon process is uncertain.
J. M. Ralston, R. K. Chang
openaire +1 more source
The Limitations of Optical Image Formation
Transactions of the New York Academy of Sciences, 1946Not ...
openaire +2 more sources
NANOMATERIALS AS OPTICAL LIMITERS
Journal of Nonlinear Optical Physics & Materials, 2000Optical limiters based on several different classes of nanomaterials are reviewed. The systems under consideration include metal and semiconductor nanoparticles and nanoscale carbon materials. For the latter, the optical limiting properties of carbon nanoparticles, fullerenes, and suspended and solubilized carbon nanotubes are summarized and compared ...
YA-PING SUN +3 more
openaire +1 more source
Scalability of Optical Networks: Crosstalk Limitations
Photonic Network Communications, 2000Optical networks represent a promising solution for the future high capacity and flexible transport network. This paper presents a model for the performance evaluation of optical networks with respect to linear crosstalk and accumulated spontaneous emission noise.
openaire +3 more sources
Optical Aids and Their Limitations
1991What we know about the universe is gleaned mostly from our local surroundings. The detection of radiation from space is needed in order to test the universality of locally derived descriptions of the physical behavior of matter and energy. But, quite apart from any utilitarian motive, we also want to more fully comprehend the physical nature of the ...
W. Schlosser +2 more
openaire +1 more source
Proceedings of the IEEE, 1981
A review is given of the characteristics and limits of integrated optics devices and circuits, with emphasis on size, speed, and power consumption. Performance limits and trade offs are discussed for semiconductor lasers, filters, switches and modulators, and bistable devices.
openaire +1 more source
A review is given of the characteristics and limits of integrated optics devices and circuits, with emphasis on size, speed, and power consumption. Performance limits and trade offs are discussed for semiconductor lasers, filters, switches and modulators, and bistable devices.
openaire +1 more source
Limit of interference in optical instruments
1952A rigorous theory has been given for the limit of interference in Lummer Gehrcke plate, transmission and reflection echelons and the grating on the lines of Saha's treatment for Fabry-Perot interferometer.
Nigam, Amar Nath +2 more
openaire +1 more source
1983
For a perfect optical system as sketched in fig. 1 (which also defines the notations) the minimum distance of resolved bubbles can be written, according to the Rayleigh criterion, $$R = \frac{{1.22\lambda p}}{a} = 1.22\lambda (m + 1)(f/a)$$ (1) (λ being the wavelength of the light, we shall assume λ = 0.55 µm).
openaire +1 more source
For a perfect optical system as sketched in fig. 1 (which also defines the notations) the minimum distance of resolved bubbles can be written, according to the Rayleigh criterion, $$R = \frac{{1.22\lambda p}}{a} = 1.22\lambda (m + 1)(f/a)$$ (1) (λ being the wavelength of the light, we shall assume λ = 0.55 µm).
openaire +1 more source
Optical Society of America Annual Meeting, 1990
The performance requirements of optical lithography equipment are driven by DRAM memory chips which require a 30% reduction in line width and a three-fold increase in resolution elements every generation. Until now semiconductor chips were small enough that arrays of them could be placed in the field of a lithography lens.
openaire +1 more source
The performance requirements of optical lithography equipment are driven by DRAM memory chips which require a 30% reduction in line width and a three-fold increase in resolution elements every generation. Until now semiconductor chips were small enough that arrays of them could be placed in the field of a lithography lens.
openaire +1 more source