Influence of spot size on extreme ultraviolet efficiency of laser-produced Sn plasmas

Harilal, S. S.; Coons, R. W.; Hough, P.; Hassanein, A.
November 2009
Applied Physics Letters;11/30/2009, Vol. 95 Issue 22, p221501
Academic Journal
We have investigated the spot size effects on the extreme ultraviolet conversion efficiency (CE) of CO2 laser-produced Sn plasmas. The estimated CE of the laser to 13.5 nm radiation, within a 2% bandwidth, using a 10.6 μm CO2 laser with various pulse widths (25–55 ns) showed a double hump structure during a target-lens scan, where the CE is nearly 25% lower at the best focal position. Density analysis of the CO2 laser-produced plasma showed steep density gradients at the best focal position, and a reduction in CE at the best focal position, which is explained by the lack of efficient coupling between the laser and the plasma.


Related Articles

  • Temporally resolved Schwarzschild microscope for the characterization of extreme ultraviolet emission in laser-produced plasmas. Tao, Y.; Nakai, M.; Nishimura, H.; Fujioka, S.; Okuno, T.; Fujiwara, T.; Ueda, N.; Miyanaga, N.; Izawa, Y. // Review of Scientific Instruments;Dec2004, Vol. 75 Issue 12, p5173 

    A temporally resolved monochromatic extreme ultraviolet (EUV) imager has been developed for use in EUV radiation source research. The imager consists of a Schwarzschild microscope, with near-normal-incident Mo/Si multilayer mirrors adjusted for 13.5 nm and 4% bandwidth, and an x-ray streak...


    Features the Fiberless Optical network by the TeraBeam Networks in Seattle, Washington. Fiberless Optical network as solution to congestion problems in broadband communications; Data transportation services provided by the network; Nationwide extension of the Gigabit Ethernet performance of...

  • CABLELABS CERTIFIES 12 MORE DOCSIS 1.1 MODEMS.  // Modem Users News;May2002, pN.PAG 

    Reports that the cable industry has certified additional DOCSIS 1.1 high-speed cable modems at the conclusion of the third certification wave for DOCSIS 1.1 testing. Companies that received DOCSIS 1.1 certification status in the latest wave of testing in 2003; List of advanced cable services...

  • Mix 'n match. Mohta, Pushpendra // Telephony;1/29/96, Vol. 230 Issue 5, p44 

    Discusses the diverse range of high-speed data services available to meet the diverse speed and budget needs of any organization. Broadband service requirements; WAN solutions; ISDN; Private line; Frame relay; SMDS; ATM. INSET: Why MMDS?..

  • New data transfer record set by international team.  // Scientific Computing World;May/Jun2004, Issue 76, p8 

    An international team has set an Internet2 Land Speed Record (I2-LSR) by transferring data across nearly 11,000 kilometers from Los Angeles, California to Geneva, Switzerland, at an average rate of 6.25 gigabits per second, nearly 10,000 times faster than a typical home broadband connection....

  • Broadband express. Warne, Dan // Australian Personal Computer;Jun2003, Issue 294, p86 

    The article provides guidelines to secure a broadband connection for accessing Internet in Australia. The first step in your quest for broadband is to know your options and these are dictated by where you live. All broadband plans can be classified under any one of three models. There are four...

  • The future of 4G.  // Computer Shopper;Jan2014, Issue 311, p23 

    The article focuses on the future aspects of the 4G mobile technology designed for data transmission on smartphones and wireless broadband.

  • "Seeing" 20¢ at 3.7 Million Paces. POCKLEY, PETER // Australasian Science;Nov/Dec2009, Vol. 30 Issue 10, p32 

    The article focuses on the initiatives set by Australia in its bid to host the "Square Kilometre Array (SKA)," a 3,000-4,000 antennae project which is equivalent to a single steerable dish of one square kilometer in area. The project, which is touted as the world's largest "radio eye on the...

  • Some basics about broadband.  // Navajo Times;4/15/2010, Vol. 49 Issue 15, pA9 

    The article offers digital information regarding the bits in stored for binary digits in broadband communication systems.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics