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Träfflista för sökning "WFRF:(Mukherjee T.) srt2:(2000-2004)"

Sökning: WFRF:(Mukherjee T.) > (2000-2004)

  • Resultat 1-5 av 5
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1.
  • Bakke, T., et al. (författare)
  • Polymeric optical spot-size transformer with vertical and lateral tapers
  • 2002
  • Ingår i: Journal of Lightwave Technology. - 0733-8724 .- 1558-2213. ; 20:7, s. 1188-1197
  • Tidskriftsartikel (refereegranskat)abstract
    • The design, fabrication, and characterization of a polymeric optical spot-size transformer with vertical and lateral tapers is reported. The vertical taper is formed by utilizing the planarization properties of a polymer, while the lateral taper is defined by photolithography. An optimization method for the taper shape is described based on fundamental results from coupled local mode theory. A total fiber to waveguide insertion loss of 0.6 dB has been measured with the integration of the transformer, an improvement of 2.1 dB. The spatial alignment tolerance for 1 dB excess loss was measured to ±2.7 µm, consistent with theory.
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2.
  • Mukherjee, S.D., et al. (författare)
  • Critical parameters for parallel interconnects using VCSEL arrays and fiber image guides
  • 2002
  • Ingår i: Proceedings of SPIE, the International Society for Optical Engineering. - : SPIE. - 0277-786X .- 1996-756X. ; 4942, s. 292-305
  • Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
    • Several thousand glass optical fibers fused together is routinely used as fiber image guides for medical and other image remoting applications. Fiber image guides also offer possibility for flexible optical interconnect links with potentially thousands of bi-directional parallel channels with data rates as high as 10 Gbps per channel, leading to more than Tera bits per second aggregate data transfer rates. A fair number of fiber image guide based link demonstrations using vertical cavity surface emitting lasers have been reported. However, little is known about designable parameters and optimization paradigms for applications to massively parallel optical interconnects. This paper discusses critical optical parameters that characterize a massively parallel link. Experimental characterizations were carried out to explore some of the fundamental interactions between single-mode 850 nm VCSELs and fiber image guides having different numerical apertures, 0.25, 0.55 and 1.00. Preliminary optical simulation results are given. Finally, potential directions for further experimental and analytical explorations, and for applicability into designable link systems are suggested.
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5.
  • Wilhelmsson, Marcus, 1974, et al. (författare)
  • Genetic screening using the colour change of a PNA-DNA hybrid-binding cyanine dye
  • 2002
  • Ingår i: Nucleic Acids Research. - : Oxford University Press (OUP). - 0305-1048 .- 1362-4962. ; 30:2
  • Tidskriftsartikel (refereegranskat)abstract
    • As the relationship between human genes and various malfunctions and diseases becomes revealed at an ever-increasing pace, the need arises for the development of rapid genetic screening methods for diagnostic purposes. Genetic diseases show great diversity. Some are caused by a few characteristic localised mutations, while others arise from a large number of variations. Hence, It. is unlikely that. a single, general diagnostic method that applies to all cases will ever exist. Instead, a combination of methods is frequently applied. Here we propose the use of a dramatic colour change that a cyanine ye, 3,3'-diethylthiadicarbocyanine, displays upon binding to DNA-PNA duplexes. This method could become an inexpensive, fast and simple genetic screening test by visual inspection, with no need for complicated equipment. Our results demonstrate that this diagnostic method may be sufficiently sensitive to discriminate between even a fully complementary and a single mutation DNA sequence.
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  • Resultat 1-5 av 5

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