Anisotropic Surface Scattering

Project

Light shaping using scattering surfaces made of binary gratings is often used to steer light to a desired property such as a certain directionality or a spatial emission pattern. In this project we will develop a systematic approach to design an array of patches made of different periodic structures; periodicity, orientation, density, surface, shape are parameters that define each patch. Each patch scatters light in a specific manner to achieve an overall light shaping goal.


Objective

We aim to design a scattering surface that minimizes back-reflections and achieve a highly flexible desired pattern generation in the domain of interest. In doing so, we will consider optimizing the  designs simulated by rigorous solvers.


Impact

Because the materials are lossless and the back-reflections are minimized compared to a diffuser, the overall efficiency will improve compared to the previously used diffusers. This would lead to some new designs for high efficiency LEDs


Information

Projects.

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Advanced Traceable Metrology for Optical Constants (ATMOC)

Understanding the size-dependent properties of various material ultra-thin films for integrated circuits is critical for nanotechnology innovation. Photonic measurement methods in the soft-X ray to IR wavelength range that approach theoretical limits ...

project

Advanced Traceable Metrology for Optical Constants (ATMOC)

SEQUOIA Project

SENSING USING QUANTUM OCT WITH AI ...

project

SEQUOIA Project

Leading by Light Guidance

Optical coherence; optimal delivery and positioning (OPTIC) The newest generation of optical sensors and light sources must be able to conduct many colours of light from source to destination. The OPTIC programme develops ...

project

Leading by Light Guidance

Extreme UV and Soft X-Ray metrology

Continuous progress in the semi-conductor industry are leading to smaller, faster and more energy efficient chips for our modern society. Critical parameters for this industry, such as overlay and critical dimension (CD), ...

project

Extreme UV and Soft X-Ray metrology

Free Form Scattering Optics

The Free-Form Scattering Optics program is a joint initiative where three Universities of The Netherlands (TUDelft, University of Twente, TU Eindhoven) work together to enable high-tech optical devices that contribute to energy efficacy, climate ...

project

Free Form Scattering Optics

News.

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The discovery of an old Microscope

In the back of a cupboard of our group, (Optics Cluster at the Imaging Physics department of Applied Sciences), a box full of interesting objects had been hiding for almost thirty years. ...

News - June 13, 2024

The discovery of an old Microscope

Interview Joseph Braat, former Professor

Our Post-doc Yifeng Shao has invited our former Professor, Joseph Braat, for an interview published on Advanced Photonics to look back at his career, the development of optical storage and ...

News - June 13, 2024

Interview Joseph Braat, former Professor

First course and agenda for Lifelong Optics Learning

The first lesson of the basic course on Optics for the Lifelong Optics Learning has been given yesterday. The agenda for the other lessons can be found here. ...

News - March 9, 2023

First course and agenda for Lifelong Optics Learning

In Memoriam: dr. Jeff Meisner

Jeff Meisner, postdoc in the Optics Group of the Department of Imaging Science, has passed away on January 1st.  Jeff became severely ill one year ago.  The medical doctors considered his condition at the ...

News - January 23, 2023

In Memoriam: dr. Jeff Meisner

A glance at our Carla Camp

If you could not join our Carla Camp last year, and whish to know more about it, you can take a glance at the video we made that encapsulate the moment in ...

News - January 13, 2023

A glance at our Carla Camp

Dr. Aurèle ADAM winner of the Westerdijk Prize

Aurèle Adam (right), Assistant Professor from the our group and Program Director of the Applied Physics Master, has been awarded the Westerdijk Prize by Timon Idema (left) head of the Prize committee ...

News - January 10, 2023

Dr. Aurèle ADAM winner of the Westerdijk Prize

Happy New Year 2023

We are glad to welcome a new year full of science and wonders. The TUDelft university has been keen to make a promotial video thanking everyone beyond the scene for 2022. We ...

News - January 10, 2023

Happy New Year 2023

Two NWO Perspectief Proposal granted for our group

NWO has granted two Perspectif program proposals where our group is part of: Leading by light guidance, where the university of Twente is leading and Imaging at the smallest scales where our Department ...

News - December 15, 2022

Two NWO Perspectief Proposal granted for our group

OSA ‘Photo of the Year’, second place for Sven Weerdenburg

Our Phd student, Sven Weerdenburg made a photo of our high harmonic generation EUV light source which has made it to the 2nd place of Optica (OSA) 'Photo of the Year' contest. A ...

News - December 5, 2022

OSA ‘Photo of the Year’, second place for Sven Weerdenburg

Face2Phase 3rd edition November 7-9, 2022 in Delft

The conference addressed phase information in imaging with topics such as lensless imaging, phase retrieval, adaptive and active optics, ptychography, holography, tomography. We also had the honour to have 14 invited speakers ...

News - November 11, 2022

Face2Phase 3rd edition November 7-9, 2022 in Delft