Rapid-phase modulation of terahertz radiation for high-speed terahertz imaging and spectroscopy

Authors

Alexander M. Sinyukov, New Jersey Institute of Technology
Zhiwei Liu, New Jersey Institute of Technology
Yew Li Hor, New Jersey Institute of Technology
Ke Su, New Jersey Institute of Technology
Robert B. Barat, Newark College of Engineering
Dale E. Gary, New Jersey Institute of Technology
Zoi Heleni Michalopoulou, New Jersey Institute of Technology
Ivan Zorych, New Jersey Institute of Technology
John F. Federici, New Jersey Institute of Technology
David Zimdars, Picometrix, Inc.

Document Type

Article

Publication Date

7-15-2008

Abstract

Rapid voltage-controlled phase modulation of cw terahertz (THz) radiation is demonstrated. By transmitting an infrared beam through a lithium niobate phase modulator the phase of the THz radiation, which is generated by the photomixing of two infrared beams, can be directly modulated through a 2 π phase shift. The 100 kHz modulation rate that is demonstrated with this technique is approximately 3 orders of magnitude faster than what can be achieved by mechanical scanning. © 2008 Optical Society of America.

Identifier

48249147519 (Scopus)

Publication Title

Optics Letters

External Full Text Location

https://doi.org/10.1364/OL.33.001593

ISSN

01469592

First Page

1593

Last Page

1595

Issue

14

Volume

33

Recommended Citation

Sinyukov, Alexander M.; Liu, Zhiwei; Hor, Yew Li; Su, Ke; Barat, Robert B.; Gary, Dale E.; Michalopoulou, Zoi Heleni; Zorych, Ivan; Federici, John F.; and Zimdars, David, "Rapid-phase modulation of terahertz radiation for high-speed terahertz imaging and spectroscopy" (2008). Faculty Publications. 12748.
https://digitalcommons.njit.edu/fac_pubs/12748