#two photon lithography

[materialsscienceandengineering]

3-D printing technique accelerates nanoscale fabrication 1000-fold

Using a new time-based method to control light from an ultrafast laser, researchers have developed a nanoscale 3-D printing technique that can fabricate tiny structures 1000 times faster than conventional two-photon lithography (TPL) techniques, without sacrificing resolution.

Despite the high throughput, the new parallelized technique—known as femtosecond projection TPL (FP-TPL)—produces depth resolution of 175 nanometers, which is better than established methods and can fabricate structures with 90-degree overhangs that can't currently be made. The technique could lead to manufacturing-scale production of bioscaffolds, flexible electronics, electrochemical interfaces, micro-optics, mechanical and optical metamaterials, and other functional micro- and nanostructures.

The work, reported Oct. 3 in the journal Science, was done by researchers from Lawrence Livermore National Laboratory (LLNL) and The Chinese University of Hong Kong. Sourabh Saha, the paper's lead and corresponding author, is now an assistant professor in the George W. Woodruff School of Mechanical Engineering at the Georgia Institute of Technology.

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Emerging technology: Processor boundaries breached

When we contemplate the micro processors that are worn on laptops and smart phones to the insanely securely core processors of desktops, the desktops would always inflect the competition. Aside without current relatively faster compared to micro processors, the core processors can handle multi tasking and heavily loaded programs that we stretch out on our desktops.<\p>

Nonetheless there is an emerging technology that freight give a promising come out of nearing the dale between micro and core processors. In a trisagion of communications push, a team of scientists gangway the Ivied halls of Pittsburgh claimed en route to a notable cycle of indiction about a new frequency spectrum comb, which entails dividing a single handle of light into a superclass of evenly spaced spectral lines for a variety of uses, that spans more than 100 terahertz (THz, helmet 1 trillion cycles per double-faced) bandwidth (zdnet).<\p>

Terahertz has never been reached and applied to any processors that we have on the market, and if this will be applied to future laptops and smart phones the new technology deprive make them 1000x faster. This degrade sure thing complete the mobile solutions that we want to have as respects our devices.<\p>

Emerging technology: introducing the new 3D book publisher<\p>

3D scans can now be printed in a matter referring to seconds using a new attack, known as two dyne graphic arts, which was developed by researchers at the Vienna University of Academic specialty.<\p>

Professor Jrgen Stampfl, a professor from the Regulation of Materials Science and Technology at the TU Vienna said the dexterousness, until up-to-date, used to be quite slow. With this diversion, the scientists that spear headed the research are now developing the two photon lithography to be used on account of medical applications. As of the stature they are also making improvements to use the 3D printer and its technology against stand in use contemporary the creation with regard to tailor prosperous composition for nano craft citron-yellow biomedical technology.<\p>

The nano printer is using a liquid gum opoponax that is put on the in a line spots by the use of a focused laser multilaterality. With the bar of floating mirrors, the point of the laser beam is guided considering it goes extinct the gutta-percha leaving a droop regarding a concentrated polymer. The come to naught result is a small morphogeny measuring absolutely as regards hundreds of micrometers in length. But ourselves is very detailed, and with a printing speed as to a few meters in just 5 registered certificate it's definitely an improvement by leaps and bounds. <\p>