Lensa: Perbedaan antara revisi

'''Lensa aksikon''' ([[bahasa Inggris|en]]: '''''axicon lens''''') adalah lensa dengan bidang antarmuka berbentuk kerucut. Lensa aksikon akan memproyeksikan sebuah titik menjadi garis sepanjang sumbu optis, dan mengubah sinar [[laser]] menjadi bentuk cincin.<ref>{{cite web| url=http://www.optics.arizona.edu/OPTI696/2005/axicon_Proteep.pdf| author=Proteep Mallik| title=The Axicon| year=2005| accessdate=2007-11-22| archive-date=2009-11-23| archive-url=https://web.archive.org/web/20091123101108/http://www.optics.arizona.edu/OPTI696/2005/axicon_Proteep.pdf| dead-url=yes}}</ref> Lensa ini dapat dipergunakan untuk mengubah [[sorot Gauss]] menjadi seperti [[sorot Bessel]] dengan efek [[difraksi]] yang sangat kecil.<ref>{{cite web| url=http://www.st-andrews.ac.uk/%7Eatomtrap/papers/Nature.pdf| author=Kishan Dholakia| coauthors=David McGloin, and Vene Garcés-Chávez| title=Optical micromanipulating using a self-reconstructing light beam| year=2002| accessdate=2007-11-22| archive-date=2004-12-04| archive-url=https://web.archive.org/web/20041204141219/http://www.st-andrews.ac.uk/~atomtrap/papers/Nature.pdf| dead-url=yes}}</ref><ref>{{cite journal| author=V. Garcés-Chávez| coauthors= D. McGloin, H. Melville, W. Sibbett and K. Dholakia| title=Simultaneous micromanipulation in multiple planes using a self-reconstructing light beam| journal=Nature| volume= 419| year=2002| url=http://sinclair.ece.uci.edu/Papers/Optics/Orbital%20angular%20momentum/Garces-Chavez%20Nature%20419%20pp145-148%202002%20(Simultaneous%20micromanipulation%20in%20multiple%20planes%20using%20a%20self-reconstructing%20light%20beam).pdf| accessdate=2007-02-06| doi=10.1038/nature01007| pages=145| archive-date=2006-09-19| archive-url=https://web.archive.org/web/20060919043112/http://www.st-andrews.ac.uk/~atomtrap/papers/Nature.pdf| dead-url=yes}}</ref>