Results 101 to 110 of about 815,475 (129)
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Optical doughnut for optical tweezers
Optics Letters, 2003We describe novel optical doughnuts for optical tweezers. With new phase functions, the proposed doughnut beams have dark cores in specified shapes. The technique can offer a simple method for creating a variety of beam shapes to match the trapped objects.
Xin Yuan, Dawei Zhang
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Optics and Optical Instruments
Physics Bulletin, 1961By B. K. Johnson New Tork: Dover Publications Inc. London: Constable & Co. Pp. viii + 224. Price $1.65. This book is an unaltered republication under a new title of the second (1947) edition of the author's Practical Optics. It is difficult to see why the title has been changed; this is a practical handbook which might appeal most to amateurs or to ...
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2014
Although often overlooked today, optics thrived in the early modern era as a science of first rank, engaging many of the best minds of the period and producing some of its most dramatic scientific results. This chapter attempts to shed light on Leibniz’s efforts to contribute to the development of early modern optics by focusing on his derivations of ...
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Although often overlooked today, optics thrived in the early modern era as a science of first rank, engaging many of the best minds of the period and producing some of its most dramatic scientific results. This chapter attempts to shed light on Leibniz’s efforts to contribute to the development of early modern optics by focusing on his derivations of ...
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A novel optical waveguide for integrated optics
IEEE Journal of Quantum Electronics, 1973A novel dielectric optical waveguide was made consisting of a guide pattern on a thin dielectric film. Almost all the power propagates in the thin film along the guide pattern. The existence of propagation modes of this waveguide was verified both theoretically and experimentally.
Akira Ihaya +2 more
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Nonlinear optics and optical activity
Journal of Physics C: Solid State Physics, 1972The second-harmonic generation coefficients of sodium chlorate and sodium bromate crystals are estimated from their optical rotatory powers by means of the anharmonic oscillator model of Condon, Altar and Eyring. The correct signs are determined, and reasonably good numerical agreement with experiment is obtained.
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All Optical Processing of Optical Packets
Asia Communications and Photonics Conference and Exhibition, 2009In this paper two different paradigms to realize a scalable all-optical packet switch with label swapping will be reviewed. All the functions required for switching the packets are based on all-optical signal processing without any electronic control. This allows very low latency and potential photonic integration of the systems.
Eduward Tangdiongga +4 more
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Clinical Anatomy, 2011
The optic chiasm is formed when the optic nerves come together in order to allow for the crossing of fibers from the nasal retina to the optic tract on the other side. This enables vision from one side of both the eyes to be appreciated by the occipital cortex of the opposite side.
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The optic chiasm is formed when the optic nerves come together in order to allow for the crossing of fibers from the nasal retina to the optic tract on the other side. This enables vision from one side of both the eyes to be appreciated by the occipital cortex of the opposite side.
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Physical Optics, Wave Optics, and Fourier Optics
1991When any of the dimensions or sizes of the components in an optical system is on the order of wavelength, then the methods discussed under geometrical optics do not give the proper solution to the problem. For this case, we must start from Maxwell’s equations, and derive the wave equation from which the proper solution to this problem can be obtained.
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Optic Nerves, Optic Chiasm, and Optic Tracts
1988The vertebrate optic nerves, optic chiasm, and optic tracts contain axons of retinal ganglion cells. These axons connect the retina, where light absorption produces patterned neuronal firing, to the brain, where these firing patterns can undergo further processing.
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Optical Systems and Statistical Optics.
1982Abstract : Theoretical and experimental research is being conducted in the field of opto-electronic systems. The goal is to contribute solutions to problems of basic research importance which also have an underlying significance in practical applications that involve automatic pattern recognition and remote sensing.
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