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World's most intense LASER is revealed


Scientists in Korea have achieved the highest intensity laser beam ever – measuring 1023 watts per centimetre square (W/cm2).  
Researchers were able to focus laser pulses to a spot the size of just over one micrometre, less than one fiftieth the diameter of a human hair. 
The unprecedented record-breaking laser intensity is comparable to focusing all the light reaching Earth from the Sun to a spot of 10 micrometres. 
10 micrometres is barely more than the standard size of a red blood cell (which is 6 to 8 micrometers).  
The achievement was made at the Center for Relativistic Laser Science (CoReLS) within the Institute for Basic Science (IBS) in Daejeon, South Korea, using a highly complex system of mirrors, lenses, sensors, power amplifiers and more.  ....

South Korea , Taejon Gwangyoksi , United States , Kwangju Gwangyoksi , United Kingdom , Republic Of Korea , Nam Chang Hee , Ophir Optronics , Institute For Basic Science , Gwangju Institute Of Science Technology , University Of Michigan , Relativistic Laser Science , Basic Science , Professor Nam Chang Hee , Professor Nam , Gwangju Institute , தெற்கு கொரியா , ஒன்றுபட்டது மாநிலங்களில் , ஒன்றுபட்டது கிஂக்டம் , குடியரசு ஆஃப் கொரியா , நாம் சாங் ஹீ , நிறுவனம் க்கு அடிப்படை அறிவியல் , குவங்ஜு நிறுவனம் ஆஃப் அறிவியல் தொழில்நுட்பம் , பல்கலைக்கழகம் ஆஃப் மிச்சிகன் , அடிப்படை அறிவியல் , ப்ரொஃபெஸர் நாம் ,

Researchers produce laser pulses with record-breaking intensity


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IMAGE: Researchers created high-intensity pulses using the petawatt laser (pictured) at the Center for Relativistic Laser Science (CoReLS) in the Republic of Korea. This high intensity laser will allow scientists to.
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Credit: Chang Hee Nam, CoReLS
WASHINGTON Researchers have demonstrated a record-high laser pulse intensity of over 1023 W/cm2 using the petawatt laser at the Center for Relativistic Laser Science (CoReLS), Institute for Basic Science in the Republic of Korea. It took more than a decade to reach this laser intensity, which is ten times that reported by a team at the University of Michigan in 2004. These ultrahigh intensity light pulses will enable exploration of complex interactions between light and matter in ways not possible before. ....

District Of Columbia , United States , Kwangju Gwangyoksi , South Korea , Republic Of Korea , Prem Kumar , Chang Hee Nam , Institute For Basic Science , Optical Society , Gwangju Institute Of Science Technology , Northwestern University , University Of Michigan , Relativistic Laser Science , Basic Science , Gwangju Institute , Editor In Chief Prem Kumar , மாவட்டம் ஆஃப் கொலம்பியா , ஒன்றுபட்டது மாநிலங்களில் , தெற்கு கொரியா , குடியரசு ஆஃப் கொரியா , பிரேம் குமார் , நிறுவனம் க்கு அடிப்படை அறிவியல் , ஒளியியல் சமூகம் , குவங்ஜு நிறுவனம் ஆஃப் அறிவியல் தொழில்நுட்பம் , வடமேற்கு பல்கலைக்கழகம் , பல்கலைக்கழகம் ஆஃப் மிச்சிகன் ,

Realization of the highest laser intensity ever reached


Credit: Institute for Basic Science
Recently, laser scientists at the Center for Relativistic Laser Science (CoReLS) within the Institute for Basic Science (IBS) in South Korea realized the unprecedented laser intensity of 1023 W/cm2. This has been a milestone that has been pursued for almost two decades by many laser institutes around the world.
An ultrahigh intensity laser is an important research tool in several fields of science, including those which explore novel physical phenomena occurring under extreme physical conditions. Since the demonstration of the 1022 W/cm2 intensity laser by a team at the University of Michigan in 2004, the realization of laser intensity over 1023 W/cm2 has been pursued for nearly 20 years. ....

United States , South Korea , Chang Hee , Institute For Basic Science , Osaka University , University Of Michigan , Relativistic Laser Science , Basic Science , ஒன்றுபட்டது மாநிலங்களில் , தெற்கு கொரியா , சாங் ஹீ , நிறுவனம் க்கு அடிப்படை அறிவியல் , ஒசகக பல்கலைக்கழகம் , பல்கலைக்கழகம் ஆஃப் மிச்சிகன் , அடிப்படை அறிவியல் ,

Understanding Graphene Growth on Insulating Substrates


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Understanding Graphene Growth on Insulating Substrates
The thinnest material, graphene, is the most promising materials for many applications, such as in electronics, energy storage and etc. For high performance electronic applications, synthesizing graphene directly on an insulating substrate is highly desired. To date, a great deal of efforts has been dedicated to synthesizing graphene on numerous insulating substrates, such as SiO2, Al2O3, Si3N4, BN. It is found that the growth of graphene on these insulating substrates are generally 10,000 times slower than that on metallic substrates (Figure 1) and, as a consequence, the graphene synthesized on an insulating substrate is generally with very low quality and the productivity is very low. To understand why graphene growth on an insulating substrate is so different from that on metallic substrates is critical for optimizing the experiential design but such a question has never been answered satisfactory. ....

Ting Cheng , Feng Ding , South Korea , Dahee Carol Kim , Zhongfan Liu , Institute For Basic Science , Communications Team , School Of Materials Science , Professor Zhirong Liu College Of Chemistry , Institute Of Basic Science , Distinguished Professor Feng Ding , Multidimensional Carbon Materials , Basic Science , Professor Zhongfan Liu , Professor Zhirong Liu , Molecular Engineering , Peking University , Materials Science , டிங் செங் , ஃபெங் டிங் , தெற்கு கொரியா , நிறுவனம் க்கு அடிப்படை அறிவியல் , தகவல்தொடர்புகள் அணி , பள்ளி ஆஃப் பொருட்கள் அறிவியல் , நிறுவனம் ஆஃப் அடிப்படை அறிவியல் , பல பரிமாண கார்பன் பொருட்கள் ,