December 2009 Blog Posts (33)


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Large energy mode locking of an erbium-doped fiber laser with atomic layer graphene

OE_graphene.pdf



We report on large energy pulse generation in an erbium-doped

fiber laser passively mode-locked with atomic layer graphene. Stable mode

locked pulses with single pulse energy up to 7.3 nJ and pulse width of 415

fs have been directly generated from the laser. Our results show that atomic

layer graphene could be a promising saturable absorber for large energy

mode… Continue

Added by Han zhang on December 30, 2009 at 10:43am — No Comments


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Large energy soliton erbium-doped fiber laser with a graphene-polymer composite mode locker

apl.pdf



Due to its unique electronic property and the Pauli blocking principle, atomic layer graphene possesses wavelength-independent ultrafast saturable absorption, which can be exploited for the ultrafast photonics application. Through chemical functionalization, a graphene-polymer nanocomposite membrane was fabricated and first used to mode lock a fiber laser. Stable mode locked solitons with 3 nJ pulse energy, 700 fs… Continue

Added by Han zhang on December 30, 2009 at 10:40am — No Comments


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Han Zhang's Curriculum Vitae

Education



2002.9-2006.7 Bachelor of science at Department of Physics, Wuhan University,Hubei,China.



2006.7-2006.12 Research Assistant, at the lab of Professor Pan Chunxu in the area of carbon nanotubes, Wuhan University.



2007.1-present Pursuing Ph.D degree at the School of Electrical and Electronic Engineering, Nanyang Technological University, with supervisor Prof. Tang Dingyuan Singapore.



2009.9-present Teaching assistant of the School of Electrical… Continue

Added by Han zhang on December 30, 2009 at 10:38am — No Comments


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Dark pulse emission of a fiber laser

pra.pdf



We report on the dark pulse emission of an all-normal dispersion erbium-doped fiber laser with a polarizer in cavity. We found experimentally that apart from the bright pulse emission, under appropriate conditions the

fiber laser could also emit single or multiple dark pulses. Based on numerical simulations we interpret the dark pulse formation in the laser as a result of dark soliton shaping.



Han… Continue

Added by Han zhang on December 30, 2009 at 10:30am — No Comments


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Small Windmills Improved With Nanotubes

Solar panels are a widely accepted way to generate electricity if your house is off the grid or if you want to supplement power from the grid, however in some regions windmills may be much more effective. Considering that adding nanotubes to composites produces stronger, lighter components I had assumed that nanotubes would be used to produce larger windmills that can withstand higher winds. I was therefore interested to find Eagle Windpower taking a different approach in one of their product… Continue

Added by Earl Boysen on December 29, 2009 at 5:04pm — No Comments


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Research in nanotechnology to prevent AIDS

Now, India and Australia have joined hands in collaborative research for using nanotechnology in renewable energy and family planning methods, including prevention of sexually transmitted diseases like HIV/AIDS.



According to Dr S Bandyopadhyay, associate professor and nanotechnology specialist, School of Material Science and Technology, University of New South Wales (UNSW), Australia, the collaborative research has started under Australia India Science Research Funding (AISRF)… Continue

Added by Shanghai Taikang Nano Technology on December 29, 2009 at 2:46pm — No Comments


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Nanocomposites could change diabetes treatment

Ontario, Canada | Posted on December 27th, 2009

The non-invasive technology, developed by Chemical and Biochemical Engineering professor Jin Zhang at The University of Western Ontario, uses extremely small nanoparticles embedded into the hydrogel lenses. These engineered nanoparticles react with glucose molecules found in tears, causing a chemical reaction that changes their colour.



Zhang received $216,342 from the Canada Foundation for Innovation (CFI) today (Dec. 16) to… Continue

Added by Shanghai Taikang Nano Technology on December 29, 2009 at 2:43pm — No Comments


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My science fiction titled "Beyond Virus" published in www.kalkion.com

Dear friends,

Greeting to all. My science fiction "Beyond Virus" has been published in www.kalkion.com. We know of bacteria and virus as disease causing ones. My story speaks about a new disease causing particle leading to a new disease. Read on the site for more details.

K.Mohan(Mohan sanjeevan)

Added by K. MOHAN on December 29, 2009 at 2:36pm — No Comments


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Happy New Year and a reminder: FREE Entries - NanoArt 2009 International - deadline January 15

FREE Entries - Open to All Artists and Scientists - Seed Images of 3 Nanosculptures are Provided for Further Artistic Creation

Submission deadline January 15, 2010



The worldwide competition NanoArt 2009 is open to all artists 18 years and older. The online exhibition will open for public on January 20, 2010.



Jurors: Dr. Pilar Irala (PhD, History of Art), world renowned photographer, expert on… Continue

Added by TINC on December 29, 2009 at 6:43am — 1 Comment


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Greener Nano 2010: Reducing Principles to Practice





The International NanoScience Community is official media partner of Greener Nano 2010.



SNNI's 5th annual conference will feature advances in the design and production of greener nanomaterials. Presentations will range from fundamental research to industrial applications and will include keynote presentations from experts in the field followed by a series of interactive, fast-paced… Continue

Added by TINC on December 28, 2009 at 11:42pm — No Comments


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Graphene: Mode-locked lasers

NPG Asia Materials research highlight | doi:

Published online 21 December 2009

Graphene: Mode-locked lasers



Fig. 1: A graphene–polymer composite film (white) can be used as a laser mode locker. The laser schematic is shown in the background, and an optical fiber for laser output is shown on the left.







Although graphene potentially has many applications, reports on exploiting its optical properties are rare. But the versatility of this material is truly… Continue

Added by Han zhang on December 28, 2009 at 12:54pm — No Comments


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Position available in Bionanotechnology to join the EU FP7 project "Centre of Excellence in nanostructured materials"

2 year Post Doc position is available from January 2010 at RC Microsystems and Nanotechnology, Kaunas University of Technology, Lithuania. Position is funded by EU FP7 REGPOT program and involves extensive collaboration with Western European twinning partner institutions.
More information:

http://www.nanomat-lt.eu/txt/jobs/

http://nano.ktu.lt

Added by Valentinas Snitka on December 27, 2009 at 5:06pm — No Comments


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natural rubber latex in nano form

Can natural rubber latex be processed into a nano form? if yes, kindly give the methods to use?

Added by Akinola K. Akinlabi on December 27, 2009 at 3:46pm — 1 Comment


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nano fibres

Can you kindly suggest how i can make nano fibres to use in rubber coumpounding as reinforcing?

Added by Akinola K. Akinlabi on December 27, 2009 at 3:24pm — No Comments


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GEOMETRY OF LIGHT

Abstract: This proposal updates the wave/particle theory of light to say that light is a regular solid, and conforms to a modified version of Euler's rule. Named the Trion-Re’, this shape creates a critical self-organizing matrix with three curved and equal faces. To account for the curvature of space, this modification shifts the rules for a platonic solid making the Trion-Re’ the sixth such regular solid and a unique structure of space/time. Traditionally, there are five Platonic Solids with… Continue

Added by MICHAEL EVANS on December 26, 2009 at 7:29pm — 1 Comment


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Biomimetic synthesis

Dear Users,

I would need some news on Biomimetic Synthesis. If you have any information, please let me know.
Thank you in advance

Added by Mészárosné Dobák Ildikó on December 25, 2009 at 11:24pm — 2 Comments


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New nanotimes 09-24/25



Highlights 09-24/25:

+ Theories Are Rocked by Oscillating Curves

+ Press Releases by Companies

+ Pressurex(R) pressure-indicating sensor film

+ Project Nanofol Completed

+ Hydrogen Sensor on the Basis of a Metallic Photonic Crystal

+ Better Steel Thanks to Magnetic Fields

+ EU-Projects

+ Trends

+ Events 2010



Download… Continue

Added by TINC on December 24, 2009 at 5:30pm — No Comments


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Post-doc position available in Canada

Dear Colleagues,



I am looking for a post-doctorate fellow to work on the project entitled

"Medical diagnostic tool for platelet activation evaluation from whole blood

samples".



In hemostasis, platelets rapidly adhere at sites of vessel wall injuries,

aggregate and form a hemostatic plug that is strengthened by a fibrin

network. At the onset of this phenomenon, platelets adhere on von Willebrand

factor,… Continue

Added by TINC on December 19, 2009 at 8:15pm — 3 Comments

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