Phd: Terahertz and Optical Metrology of - Amsterdam Oost, Nederland - ARCNL

ARCNL

Geverifieerd bedrijf

Amsterdam Oost, Nederland

2 weken geleden

Geplaatst door:

Daan Van den Berg

werver van beBee

Beschrijving

Work Activities:

In semiconductor device manufacturing, metrology tools are required for wafer alignment, overlay and device inspection.

As devices become more complicated and as stronger light sources are being used to get sufficient signal from samples covered with optically opaque layers, optical damage can occur.

Catastrophic damage is easily detected. However, there are forms of non-catastrophic optical damage (or more generally, subtle material modifications) that are difficult to observe.

Recently, we have shown that subtle structural changes in a material can lead to subtle changes in the optical response of the material in visible/near-infrared part of the optical spectrum and that light emission at terahertz (THz) frequencies can yield equally relevant, complementary information.

THz radiation in particular has been shown to be sensitive to nanoscale electrical conductivity.

Project goal

After you join our group, your goal is to design and execute optical and THz experiments to measure and understand the nature of the subtle material changes created by exposure to laser pulses.

You will learn to work with high-power femtosecond lasers, with detectors and diagnostic tools like SEM, AFM and others, and learn how to analyze your data.

Qualifications:

You have (or soon will have) a MSc degree in physics, chemistry, or materials science or equivalent, to satisfy the Dutch university requirement to enter a PhD program.

Previous experience with lasers is not required but it would be a plus. An interest in non-linear optics, materials science and chemistry is needed, as are critical thinking, and creative problem-solving skills. Good verbal and written communication skills in English are required.

Work environment:

The Advanced Research Center for Nanolithography (ARCNL) focuses on the fundamental physics and chemistry involved in current and future key technologies in nanolithography, primarily for the semiconductor industry.

ARCNL is a public-private partnership between the Dutch Research Council (NWO), the University of Amsterdam (UvA), the VU University Amsterdam (VU), associate partner the University of Groningen (RuG), and the semiconductor equipment manufacturer ASML.

About the Light/Matter Interaction group

The research activities of the Light/Matter Interaction group focus on the optical and terahertz response of materials within the context of photo-acoustics and light-induced damage.

Ultrashort THz pulses play an increasingly larger role in discovering the response of materials to intense light, both by measuring the emission of THz light by materials after exposure to intense laser pulses, and by using THz light as a probe to measure light-induced material changes.

Working conditions:

More information?:

Application:

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