CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 11090 > Article
Presentation
10 September 2019 Probing carrier dynamics with THz time-domain and emission microscopy (Conference Presentation)
Pernille Klarskov
Author Affiliations +
Proceedings Volume 11090, Spintronics XII; 1109012 (2019) https://doi.org/10.1117/12.2529938
Event: SPIE Nanoscience + Engineering, 2019, San Diego, California, United States
Abstract
Terahertz (THz) time-domain spectroscopy and optical pump-THz probe spectroscopy are today widely used within the THz community to study material properties and carrier dynamics in semiconductors and 2D materials. Along with these methods, Laser THz Emission Microscopy (LTEM) is an alternative and somewhat simpler technique where THz pulses are collected from a sample after it is directly photo-excited by a femtosecond (fs) laser. Since most semiconductors intrinsically are able to emit THz pulses when carriers are accelerated on a fs time scale, this method is directly able to provide information about carrier mobility. At the same time, LTEM can image a sample with a much higher spatial resolution than conventional THz systems due to the much lower diffraction-limit of the fs laser pulses. Recently, it has been demonstrated that spintronic THz emitters have the potential of out-competing conventional THz sources showing an impressive efficiency and a bandwidth up to 10s of THz, which is normally only achieved in much more sophisticated THz sources such as air-plasmas generated with amplified fs laser systems. While some work has already been done in optimizing the spintronic structures to generate maximum THz signal and bandwidth, understanding the carrier dynamics from the measured THz pulses is still a challenge. In this presentation we discuss the ability to understand the carrier dynamics spintronic samples with LTEM and THz time-domain spectroscopy, and present an experimental platform where samples can be studied with these methods simultaneously.
Conference Presentation
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Pernille Klarskov "Probing carrier dynamics with THz time-domain and emission microscopy (Conference Presentation)", Proc. SPIE 11090, Spintronics XII, 1109012 (10 September 2019); https://doi.org/10.1117/12.2529938
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
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
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 PRESENTATION
WATCH
PRESENTATION SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
KEYWORDS
Terahertz radiation
Carrier dynamics
Microscopy
Femtosecond phenomena
Spectroscopy
Spintronics
Optical spectroscopy
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top