Nano-detectors using molecular circuits operating at THz frequencies

Jorge M. Seminario; Liuming Yan; Yuefei Ma

doi:10.1117/12.633323

4 November 2005 Nano-detectors using molecular circuits operating at THz frequencies

Jorge M. Seminario, Liuming Yan, Yuefei Ma

Proceedings Volume 5995, Chemical and Biological Standoff Detection III; 59950R (2005) https://doi.org/10.1117/12.633323
Event: Optics East 2005, 2005, Boston, MA, United States

Abstract

We proposed two scenarios for signal encoding and transmission in molecular circuits that can be used for standoff detection of biological and chemical agents: one is based on the characteristic vibrational behavior of molecules and clusters and the other is based on their molecular electrostatic potentials. It is proposed that these two scenarios can be used for molecular signal processing and transfer in molecular sensors; theoretical demonstrations using state of the art and precise computational techniques are presented for these two paradigms. The molecular electrostatic potential in the neighborhood of a molecule has very well defined zones of positive and negative potential that can be manipulated to encode information. On the other hand, vibrational modes of long molecules can be used to transfer signals between distances not accessible by standard fabrication techniques. In additions, the development of molecular amplifiers allows us to transfer signals through the nano- micro interface needed to pass the information to the macroscopic world. These scenarios allow extremely lower energies, higher speeds, and higher integration densities than in any other technology. Thus, the use of these two low-power consumption and extremely large bandwidth approaches allow us to operate at the THz range, the natural operation frequency of biological and chemical species. A review of our search for other scenarios for coding, processing and transport of information for sensing detection are provided.

Citation Download Citation

Jorge M. Seminario, Liuming Yan, and Yuefei Ma "Nano-detectors using molecular circuits operating at THz frequencies", Proc. SPIE 5995, Chemical and Biological Standoff Detection III, 59950R (4 November 2005); https://doi.org/10.1117/12.633323

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available