Navigation Links
Water window imaging opportunity
Date:8/21/2014

Ever heard of the water window? It consists of radiations in the 3.3 to 4.4 nanometre range, which are not absorbed by the water in biological tissues. New theoretical findings show that it is possible to develop coherent radiations within the water window. These could be the basis of an optimal technique to obtain a high-contrast image of the biological samples or to be used in high-precision spectroscopy. Now, a new theoretical study identifies the physical mechanism needed to efficiently generate the harmonic radiationswhich are multiples of an incoming lasers frequencyat high laser intensities that occur beyond the saturation threshold of atoms and molecules. These findings, aimed at improving conventional methods of coherent radiation production to reach the water window, were recently published in the EPJ D by Jos Prez-Hernndez from the Centre for Pulsated Laser, CLPU, in Salamanca, Spain, and colleagues.

When an intense and short laser pulse interacts with an atom or molecule, one of the resultant physical processes is the High-order Harmonic Generation (HHG) process, which is capable of changing the driving laser pulse into new harmonic frequencies. HHG also provides a direct way to synthesise atto-second pulses (10-18s range) and produce coherent radiation in the extreme UV range, dubbed XUV and EUV.

In previous similar work, studies focused on hydrogen as the atomic target. In the present work, the authors extend the study to argon atomsa gas typically providing a high enough frequency conversion efficiency to detect the HHG. The authors use the same formalism as in hydrogen studies, consisting in mathematical equations combined with a quantum mechanical approach using numerical computation and providing a quantitative description of the HHG spectrum. The experimental confirmation of the reported prediction, however, still remains a challenge.


'/>"/>

Contact: Laura Zimmermann
laura.zimmermann@springer.com
49-622-148-78414
Springer
Source:Eurekalert

Related biology news :

1. Water and sunlight the formula for sustainable fuel
2. Waterloo makes public most complete Antarctic map for climate research
3. Project serves up big data to guide managing nations coastal waters
4. U-Michigan Water Center to help lead national estuary research program
5. Water-polluting anxiety drug reduces fish mortality
6. Harry Atwater and Albert Polman receive the Julius Springer Prize for Applied Physics 2014
7. Underwater elephants
8. Impact of Deepwater Horizon oil spill on coral is deeper and broader than predicted
9. Stanford study shows how to power California with wind, water and sun
10. ETH student develops filter for clean water around the world
11. Researchers provide guide to household water conservation
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/11/2017)... 11, 2017 No two people are ... the New York University Tandon School of Engineering ... found that partial similarities between prints are common ... mobile phones and other electronic devices can be ... vulnerability lies in the fact that fingerprint-based authentication ...
(Date:4/5/2017)... LONDON , April 4, 2017 KEY ... is anticipated to expand at a CAGR of 25.76% ... neurodegenerative diseases is the primary factor for the growth ... full report: https://www.reportbuyer.com/product/4807905/ MARKET INSIGHTS The ... of product, technology, application, and geography. The stem cell ...
(Date:3/30/2017)... NEW YORK , March 30, 2017 ... by type (physiological and behavioral), by technology (fingerprint, AFIS, ... recognition, voice recognition, and others), by end use industry ... travel and immigration, financial and banking, and others), and ... Europe , Asia Pacific ...
Breaking Biology News(10 mins):
(Date:6/19/2017)... ... June 19, 2017 , ... Tunnell Consulting has been solving the ... the biggest challenges faced by life sciences, biotech and pharmaceuticals companies today is in ... Kati Abraham , who is well known in the industry and brings significant high-level ...
(Date:6/16/2017)... ... 16, 2017 , ... Cambridge Semantics , the leading ... Smart Data Lake® (Anzo SDL) solution was named a finalist in the ... Information Industry Association (SIIA) CODiE Awards. , Finalists represent the best products, ...
(Date:6/15/2017)... , ... June 15, 2017 , ... ... has secured a Series B round of financing in the amount of $6 ... of private investors participated in the round. , The Series B funding will ...
(Date:6/15/2017)... ... June 15, 2017 , ... ... DuPont Biofuels, will be speaking at Bloomberg’s 2017 Sustainable Business Summit: Seattle ... leading environmental and sustainability officials on a panel titled “Developing a Corporate Renewables ...
Breaking Biology Technology: