Analysis of terahertz generation by beamlet superposition
Name
oe-27-19-26547.pdf
Description
Published version
Size
5.25 MB
Format
Adobe PDF
Checksum (MD5)
09b888c47c27009c98bf47a67c09c786
Author(s)
Ravi, Koustuban
Ofori-Okai, Benjamin Kwasi
Nelson, Keith Adam
Kaertner, Franz X
Date Issued
September 2019
Journal
Optics Express
Publisher
The Optical Society
Citation
Koustuban Ravi et al. "Analysis of terahertz generation by beamlet superposition," Optics Express 27, 19 (September 2019): 26547-26568 © 2019 Optical Society of America
Version
Final published version
Abstract
A theory of terahertz generation using a superposition of beamlets is developed. It is shown how such an arrangement produces a distortion-free tilted pulse front. We analytically show how a superposition of beamlets produces terahertz radiation with greater efficiency and spatial homogeneity compared to tilted pulse fronts generated by diffraction gratings. The advantages are particularly notable for large pump bandwidths and beam sizes, suggesting better performance in the presence of cascading effects and for high energy pumping. Closed-form expressions for terahertz spectra and transients in three spatial dimensions are derived. Conditions for obtaining performance better than conventional tilted pulse fronts and bounds for optimal pump parameters are furnished.
MIT Department
Massachusetts Institute of Technology. Research Laboratory of Electronics
Massachusetts Institute of Technology. Department of Chemistry
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1364/oe.27.026547
