Find information on common issues.
Ask questions and find answers from other users.
Suggest a new site feature or improvement.
Check on status of your tickets.
Switching Energy in CMOS Logic: How far are we from physical limit?
out of 5 stars
24 Apr 2006 | | Contributor(s):: Saibal Mukhopadhyay
Aggressive scaling of CMOS devices in technology generation has resulted in exponential growth in device performance, integration density and computing power. However, the power dissipated by a silicon chip is also increasing in every generation and emerging as a major bottleneck to technology...
Technology challenges of the 21st Century
14 May 2007 | | Contributor(s):: Eugene Meieran
The 20th century was a century of remarkable scientific and technical achievement, as recorded in the National Academy of Engineering book, "A Century of Innovation". Three forces ("a perfect storm") combined to make this possible; almost universal availability of electric power to enable many...
The Bardeen Transfer Hamiltonian Approach to Tunneling and its Application to STM/Carbon Nanotubes
05 May 2004 | | Contributor(s):: Peter M. Albrecht, Kyle Adam Ritter, Laura B. Ruppalt
This presentation covers the Bardeen Transfer Hamiltonian approach to tunneling and its application to STM/carbon nanotubes.
The Long and Short of Pick-up Stick Transistors: A Promising Technology for Nano- and Macro-Electronics
11 Apr 2006 | | Contributor(s):: Muhammad A. Alam
In recent years, there has been enormous interest in the emerging field of large-area macro-electronics, and fabricating thin-film transistors on flexible substrates. This talk will cover recent work in developing a comprehensive theoretical framework to describe the performance of these...
The Nano-MOSFET: A brief introduction
17 Aug 2007 | | Contributor(s):: Mark Lundstrom
MOSFET channel lengths are now well below 100nm, and getting smaller, but MOSFETs are still modeled and understood much as they were 30 years ago. Seminal work in the 1960’s laid the foundation for our understanding of the MOSFET, but traditional approaches are based on concepts that lose...
The Optical Freqency Comb: A Remarkable Tool for Metrology, Science and Medical Diagnostics
31 Dec 2008 | | Contributor(s):: John L. Hall
The Optical Frequency Comb concept and technology exploded in 1999-2000 from the synthesis of advances in independent fields of Laser Stabilization, UltraFast Lasers, and NonLinear Optical Fibers. The Comb was developed first as a method for optical frequency measurement, enabling a...
The Pioneers of Quantum Computing
19 Nov 2010 | | Contributor(s):: David P. Di Vincenzo
This talk profiles the persons whose insights and visions created the subject of quantum information science. Some famous, some not, they all thought deeply about the puzzles and contradictions that were apparent to the founders of quantum theory. After many years of germination, the confluence...
Thermal Microsystems for On-Chip Thermal Engineering
04 Apr 2006 | | Contributor(s):: Suresh V. Garimella
Electro-thermal co-design at the micro- and nano-scales is critical for achieving desired performance and reliability in microelectronic circuits. Emerging thermal microsystems technologies for this application area are discussed, with specific examples including a novel micromechanical...
Three-Dimensional Photonic Crystals
11 Feb 2008 | | Contributor(s):: Minghao Qi
A photonic crystal (PhCs) is typically a composite of a high-dielectric-constant material (e.g. Si) and a low-constant one (e.g. SiO2 or air), arranged periodically in space. Two dimensional examples include a hexagonal lattice of air holes drilled in a Si slab, or a set of Si rods at square...
Toward Improving the Precision of Nanoscale Force-Displacement Measurements
13 Mar 2007 | | Contributor(s):: Jason Clark
Nanotechnology has great potential for being used to create better medicines, materials, and sensors. With increasing interest in nanotechnology to improve the quality of our lives, there has been an increasing use of nanoscience tools to measure force and displacement to understand nanoscale...
04 Aug 2004 | | Contributor(s):: Mark Lundstrom
The transistor is the basic element of electronic systems. The integrated circuits inside today's personal computers, cell phones, PDA's, etc., contain hundreds of millions of transistors on a chip of silicon about 2 cm on a side. Each technology generation, engineers shrink the size of...
Tutorial for NanogromacsSenior
28 Apr 2008 | | Contributor(s):: Dairui Chen
Tutorial on Using Micelle-MD
05 Apr 2006 | | Contributor(s):: Patrick Chiu, Kunal Shah, Susan Sinnott
This is a tutorial using Micelle-MD. This includes the main capabilities, computation procedure, with format of files generated, and the simulation setup, which includes the material models implemented.
Understanding Molecular Conduction
08 Jul 2004 | | Contributor(s):: Supriyo Datta
It is common to differentiate between two ways of building a nanodevice: a topdown approach where we start from something big and chisel out what we want and abottom-up approach where we start from something small like atoms or molecules andassemble what we want. When it comes to describing...
Understanding Phonon Dynamics via 1D Atomic Chains
04 Apr 2006 | | Contributor(s):: Timothy S Fisher
Phonons are the principal carriers of thermal energy in semiconductors and insulators, and they serve a vital role in dissipating heat produced by scattered electrons in semiconductor devices. Despite the importance of phonons, rigorous understanding and inclusion of phonon dynamics in...
21 Mar 2006 | | Contributor(s):: Alain Roy
In this talk, Alain Roy describes details of how to use Condor to run jobs on your local batch system. It is presumed that you have already installed Condor and wish to learn the basics of submitting jobs.
Using Subversion for Source Code Control
14 Aug 2007 | | Contributor(s):: Michael McLennan
If you're developing software, you should be storing your code in a source code control system. The nanoHUB team recommends Subversion, because it is easy to use, open source, and available on Unix/Linux, Windows, MacOSX, and many other systems. Subversion is similar to the popular CVS system...
Using Workspaces on nanoHUB.org
24 Aug 2007 | | Contributor(s):: Michael McLennan
One of the most powerful tools on nanoHUB is something we call a workspace, which is a full-featured Linux desktop that you can access any time, any place, from your web browser. Workspaces are fully loaded with the latest nanoHUB software stack, including the Rappture toolkit, Octave, Scilab, a...
Vector Free Energy Calculation with Adaptive Biasing Force
18 Jun 2006 | | Contributor(s):: Eric F Darve
This presentation discusses recent numerical methods to calculate thefree energy as a function of a reaction coordinate for bio-molecules.Free energy is often called potential of mean force and represents theeffective potential experienced by a generalized coordinate for abio-molecular system....
24 Nov 2008 | | Contributor(s):: Alejandro Strachan
Opening remarks for the Purdue School on High Performance and Parallel Computing.