Coherent Control over Excitations and Signals in Semiconductors
Abstract
The underlying technology for Thz polaritonics - programmable, solid-state, THz-bandwidth signal processing - was developed. Two primary steps enabled this achievement. First, an automated spatiotemporal femtosecond pulse shaping system, through which ultrafast laser pulses could be directed at specified times to specified locations (i. e. to specified addresses), was created. Second, the system was applied to spatiotemporal coherent control over THz-frequency polariton waves (which serve as ultrahigh-bandwidth signals) in crystalline solids. The methods open the way to a versatile electro-optic signal processing platform in which the TMz-bandwidth signals are generated, propagated, manipulated, and read out, all without loss of bandwidth. The results of this project have spawned numerous further refinements of polaritonics technology as well as advances toward fundamental and practical applications.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 2002
- Accession Number
- ADA414329
Entities
People
- Keith A. Nelson
Organizations
- Massachusetts Institute of Technology