18 Questions 130 Answers 0 Followers
Questions related from Prof. Walid Tawfik
I think 6fs will spread to be about 30 fs if pass through 1 mm and about 56 fs if pass through the 2 mm of Bk7. For 18 fs , it will be 22 fs if pass through 1 mm and about 24 fs if pass through...
11 November 2015 8,355 4 View
I am interested to compare the temporal dispersion of 6fs,18 fs and 30fs pulses in glass (like BK7). I think 6fs will spread to be about 30 fs if pass through 1 mm and about 56 fs if pass...
11 November 2015 5,605 7 View
Recently I have received many e-mails from the journals Jökull Journal http://www.jokulljournal.com/" , "Wulfenia http://www.multidisciplinarywulfenia.org/index.html" and "Sylwan.English Edition...
05 May 2015 3,355 0 View
About Ballistic Transport in graphene: IBM has built on their previous graphene research and developed what is being reported as the best graphene-based integrated circuit (IC) built to date, with...
02 February 2014 8,124 3 View
There are many theories about the how magnetic field clears the light-nanoparticle interaction mechanisms. All of them depend on the light electric field. Two days ago, physicists from FOM...
12 December 2013 3,240 0 View
By applying pressure to a semiconductor, researchers have been able to transform a semiconductor into a "topological insulator" (TI), an intriguing state of matter in which a material's interior...
12 December 2013 5,038 1 View
One of the main problems to spread panels in the desert is that, you should hire someone to clean them otherwise you will lose a lot of your efficiency. On average, panels lost a little less than...
12 December 2013 2,549 2 View
There are competition between many devices , specially DARPA which wants to create cheap, mass-produced mind-reading device and Google which announced that Glass '2' upgrade will work with...
11 November 2013 762 2 View
Japan launches 70-megawatt solar plant, largest in the world. Nearly 300,000 offshore solar panels will provide enough power for 22,000 homes as post-Fukushima Japan struggles with energy...
11 November 2013 4,826 13 View
(Phys.org) —As sources of renewable energy, sun and wind have one major disadvantage: it isn't always sunny or windy. Waves in the ocean, on the other hand, are never still. American researchers...
11 November 2013 974 1 View
Usually optical lattice could be obtained using an arrangement of crisscrossed laser beams that creates a periodic two-dimensional array of standing waves. Ultracold atoms are drawn into the...
10 October 2013 5,046 7 View
The global energy industry is undergoing unprecedented changes. Rapid increase in energy consumption in the developing world will be the key driver of growth for the global energy market....
10 October 2013 794 26 View
A week ago, it was announced that Mars rover Curiosity found water in the first sample of planet surface! The first scoop of soil analyzed by the analytical suite in the belly of NASA's Curiosity...
10 October 2013 1,310 4 View
This a reviewer question on an article of mine. The question was: "Even though the carbon is a major element, why its intensity of C247 nm much lower than that of Na 588, 589 nm lines (minor...
08 August 2013 1,415 11 View
I am trying to defend my project "Synthesis and Detection of Nanoparticles using Dual-Pulse Femtosecond Laser-Induced Breakdown Spectroscopy" and reply the reviewer comments. Could you help in the...
05 May 2013 1,094 12 View
Materials scientists make solar energy chip 100 times more efficient March 20, 2013 http://phys.org/news/2013-03-materials-scientists-solar-energy-chip.html#jCp The new device is based on the...
03 March 2013 6,110 1 View
I think the solar energy had now a good enhancement and solar cells reaches to almost 40% efficiency. http://www.forcedgreen.com/2012/11/new-solar-cell-design-could-reach-40-efficiency/ This is...
01 January 2013 3,197 0 View
I think that solar energy now has a good enhancement and solar cells have almost reached 40% efficiency. http://www.forcedgreen.com/2012/11/new-solar-cell-design-could-reach-40-efficiency/ This is...
01 January 2013 4,421 93 View
