News & Updates
Search Research Content
Resource Finder at Kennedy Krieger Institute
A free resource that provides access to information and support for individuals and families living with developmental disabilities.
Broadband terahertz generation and detection at 10 nm scale.
|Title||Broadband terahertz generation and detection at 10 nm scale.|
|Publication Type||Journal Article|
|Year of Publication||2013|
|Authors||Ma Y, Huang M, Ryu S, Bark CW, Eom C-B, Irvin P, Levy J|
|Date Published||2013 Jun 12|
Terahertz (0.1-30 THz) radiation reveals a wealth of information that is relevant for material, biological, and medical sciences with applications that span chemical sensing, high-speed electronics, and coherent control of semiconductor quantum bits. To date, there have been no methods capable of controlling terahertz (THz) radiation at molecular scales. Here we report both generation and detection of broadband terahertz field from 10 nm scale oxide nanojunctions. Frequency components of ultrafast optical radiation are mixed at these nanojunctions, producing broadband THz emission. These same devices detect THz electric fields with comparable spatial resolution. This unprecedented control, on a scale of 4 orders of magnitude smaller than the diffraction limit, creates a pathway toward THz-bandwidth spectroscopy and control of individual nanoparticles and molecules.
|Alternate Journal||Nano Lett.|