25-29 June 2018
Africa/Johannesburg timezone
General information and Registration for SAIP2018 is handled by Eastern Sun Events at: http://www.saipconference.co.za/ <p> Deadline for papers for the conference proceedings is 28 July 2018

Data extraction techniques for terahertz time-domain ellipsometry

28 Jun 2018, 15:00
2h
Poster Presentation Track C - Photonics Poster Session 2

Speaker

Mr Shane Smith (Student Member)

Description

Terahertz(THz) radiation is a powerful tool for non-destructive spectroscopy and has the potential of being useful in analysing biological materials. Due to the strong absorption of THz radiation by water, a reflection-based geometry is required when investigating samples in an aqueous medium. Due to the relatively low alignment tolerance in THz time-domain spectroscopy it is preferable to implement a technique that does not depend on the need for a reference measurement when performing reflection-based measurements. Ellipsometry has been implemented to this end. The construction of a THz ellipsometer has been completed, but to make use of the measured data, analysis algorithms need to be implemented and tested. The development of these algorithms, which are model dependent and are applicable to specific cases, will be discussed. The cases investigated are bulk isotropic samples, single-layer isotropic samples and two-layer isotropic systems where the second layer is a bulk isotropic layer.

Supervisor details<br><b>If not a student, type N/A.</b><br>Student abstract submision<br>requires supervisor permission:<br>please give their name,<br> institution and email address.

Pieter Neethling
pietern@sun.ac.za

Please confirm that you<br>have carefully read the<br>abstract submission instructions<br>under the menu item<br>"Call for Abstracts"<br><b>(Yes / No)</b> Yes
Consideration for<br>student awards<br><b>Choose one option<br>from those below.</b><br>N/A<br>Hons<br>MSc<br>PhD PhD

Primary author

Mr Shane Smith (Student Member)

Co-authors

Prof. Erich Rohwer (University of Stellenbosch) Dr Pieter Neethling (Laser Research Institute, University of Stellenbosch)

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Paper