Subject: ~ 13 title(s) found
Nanophotonics: from Plasmon Physics to Cancer Therapy
Added on 20-JUN-08
Contributed by Naomi Halas
Abstract PDF | Presentation PDF
In recent years we have shown that certain metallic nanoparticles possess plasmon resonances that depend very sensitively on the shape of the nanostructure. This interesting observation has led to a fundamentally new understanding of plasmon resonances of metallic nanostructures- "Plasmon Hybridization" - where the collective electronic resonances in a metallic nanostructure is rigorously analogous to the single electron quantum states of simple atoms and molecules. The Plasmon hybridization pic...
Nano 101: Introduction to Nanotechnology
Added on 05-NOV-07
Contributed by Mark Ratner
Real Movie
As part of the NCLT Nanoscience Lecture Series, Professor Mark Ratner provides a thorough introductory overview on Nanoscience and Nanotechnology. Prof. Ratner is interested in structure at the nanoscale, function at the nanoscale, and the theory of fundamental chemical processes. In this video, Prof. Ratner provides an overview in the development of nanotechnology and the unique properties, fabrication and functions at the nanoscale....
When Things Get Small
Added on 12-OCT-07
Contributed by Ivan Schuller
Webpage
In this multiple award winning movie, featuring well done hosting from Adam Smith, along with entertaining cameos and analogies, Prof. Ivan Schuller and Rich Wargo of UCSD provide a light-hearted, non-intimidating introduction to the nanoscale and nanoscale science and technology. ?When Things Get Small,? conveys the excitement of science and working at the nanoscale, which is usually hard to convey to an audience through a typical lecture or science paper....
Nanotechnology: An Overview of Recent Developments
Added on 19-SEP-07
Contributed by Meyya Meyyappan
MPEG4 Movie
As part of the NCLT Nanoscience Lecture Series, Dr. Meyya Meyyappan provides a clear introduction of Nanoscience and Nanotechnology while discussing recent developments and potential applications in the field. Dr. Meyyappan is the Chief Scientist at the Center for Nanotechnology at the NASA Ames Research Center and delivers a useful overview from his unique vantage point....
Directed Assembly of Nanoelements for High-rate Nanomanufacturing of Devices and Sensors
Added on 29-MAR-07
Contributed by Ahmed Busnaina
Abstract PDF | Presentation PDF | Windows Media Movie
The transfer of nano-science accomplishments into technology is severely hindered by a lack of understanding of barriers to nanoscale manufacturing. Commercial products cannot be realized without first answering many questions, such as how one can assemble and wire billions of nano-scale devices together, or how one can prevent failures and avoid defects. The Center for High-rate Nanomanufacturing is developing tools and processes that will enable high-rate/high-volume bottom-up, precise, parall...
Nanomaterials Inspiration from Ancient Materials
Added on 23-JAN-07
Contributed by Howard Katz, Jonah Erlebacher, Peter Searson
Abstract PDF | Presentation PDF | Windows Media Movie | Presentation with audio (SWF)
The current revolution in materials technologies is being driven by the ability to observe and control nanometer-scale features, and even to anipulate objects the size of single molecules. Research being conducted at the Johns Hopkins Department of Materials Science and Engineering has a powerful nanoscience focus encompassing energy, devices, and biotechnology. This presentation will illustrate......
Wrapping light around a hair
Added on 17-JAN-07
Contributed by Eric Mazur
Webpage
Can light be guided by a fiber whose diameter is much smaller than the wavelength of the light? Can we mold the flow of light on the micrometer scale so it wraps, say, around a hair? Until recently the answer to these questions was 'no'. We developed a technique for drawing long, free-standing silica wires with diameters down to 50 nm that have a surface smoothness at the atomic level and a high uniformity of diameter. Light can be launched into these silica nanowires by......
Metal Oxide Nanowires: Synthesis, Characterization and Device Applications
Added on 09-MAY-06
Contributed by Jia Lu
Abstract PDF | Presentation PDF | Windows Media Movie | Presentation with audio (SWF)
Various metal oxide nanowires, such as ZnO, SnO2, Fe2O3, In2O3 and Ga2O3, have been synthesized by chemical vapor deposition method. Their structures and properties are characterized by TEM, SEM, XRD, AFM, photoluminescence, photoconductance, scanning surface potential microscopy, and electrical transport measurement. By integrating bottom-up technique with top-down lithographic technique, these nanostructures are used to fabricate a range of electronic and chemical sensing devices......
Designing Nanocomposite Materials for Solid-State Energy Conversion
Added on 09-MAY-06
Contributed by Timothy Sands
Abstract PDF | Presentation PDF | Windows Media Movie | Presentation with audio (SWF)
New materials will be necessary to break through today's performance envelopes for solid-state energy conversion devices ranging from LED-based solid-state white lamps to thermoelectric devices for solid-state refrigeration and electric power generation. The combination of recent materials advances and development of practical "bottom-up" nanofabrication methods offers to provide the degrees of freedom necessary to design practical nanocomposite-based devices that can eclipse the performance of ...
Understanding the Growth Processes of Novel Nanostructures
Added on 09-MAY-06
Contributed by Zhong Wang
Abstract PDF | Presentation PDF
Nanomaterials are the fundamental ingredients for nanotechnology. The behaviors of nanomaterials are distingctly different from those of the bulk materials. With the increased surface-to-volume ratio when the size of an object reaches nanometer scale, various growth processes and phenomena that do not occur for large-size bulk may start to emerge, because surface effect takes an important role in determining the shape of the nanostructure. Understanding the physical and chemical processes of how...
Developing Nanotechnology Modules for Existing Secondary School Curriculum
Added on 09-MAY-06
Contributed by Linda Schadler, Chang Ryu
Abstract PDF | Presentation PDF | Windows Media Movie
The education and outreach program at Rensselaer's NSF Center for Directed Assembly of Nanostructures has been focusing on K-12 science education. Through a partnership with a local High School and General Electric, 5 high school teachers developed new teaching modules on nanotechnology and supplementary teaching materials. These modules were incorporated into existing courses and make us of nanoscale analysis tools, such as scanning electron microscopy (SEM) and atomic force microscopy (AFM)......
Introduction to Nanometer Scale Science and Technology
Added on 06-MAY-06
Contributed by Mark Hersam
Abstract PDF | Presentation PDF | Windows Media Movie | Presentation with audio (SWF)
This seminar will provide an introductory overview for non-experts of the
emerging field of nanometer scale science and technology. The following topics will be emphasized: (1) Historical background and motivation for the study of nanometer scale phenomena; (2) Strategies for controlling the structure of matter with nanometer scale precision; (3) Size-dependent properties (e.g., electrical, optical, and magnetic) that emerge at the nanometer scale; (4) Real-world applications that utilize nanom...
Nanomagnetism
Added on 04-MAY-06
Contributed by Kristen Buchanan
Abstract PDF | Presentation PDF | Windows Media PDF
Magnets play an important role in our everyday life in a variety of ways beyond
holding photos on the refrigerator door. Computer hard drives, MP3 players, iPods, credit cards, electric motors, audio speakers, and magnetic resonance imaging (MRI) machines used in hospitals, are all examples of devices that rely on magnetism. When the size of a magnet is reduced to the nanoscale, its properties can be drastically different and often improved due to confinement effects. Nanomagnets have great pot...
