1,720,962 research outputs found
Switching of transverse modes in vertical cavity surface emitting lasers
Transverse nonlinear optics has made possible the control of the spatial profile of the beam emitted by a laser as well as low-energy switching in a bistable laser operating with two doughnut modes. In related works conducted, the laser operates as a major decision element. This paper investigates the possibility of transverse mode switching in vertical cavity surface emitting lasers, which provide convenience owing to their small dimensions, fast response, and low lasing thresholds
Logic Gates and Optical Switching with Vertical Cavity Surface Emitting Lasers, Phys. Rev. A 55, 690 (1997)
Going Beyond Counting First Authors in Author Co-citation Analysis
The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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