We develop open micro cavities to trap light in small volumes and thereby increase the interaction with intra-cavity emitters. Important aspects in this development are the optical penetration in the mirrors, coupling between optical modes, and scattering and clipping losses.

Lots of efforts are being made to promote open science practices in scholarly publishing. However, information on the openness of scholarly journals is highly fragmented. There are various data sources that provide information on specific aspects of openness, but there is hardly any integration of these…

On this page you'll find the recordings of the programme presentations held at the Leiden University Bachelor's Online Open Day of 7 October 2023. Perhaps you joined this event and would like to rewatch the presentations or are curious about ones you didn’t see the first time around. Or you haven't…

Combining results from bibliometric analyses, a global sample of researcher opinions and case-study interviews, a new report reveals that although the benefits of open research data are well known, in practice, confusion remains within the researcher community around when and how to share research…

In July 2022, Leiden hosted the ESOF conference.

In 'That's Why Teacher', our educators share their experiences. Asking challenging questions to seek a deeper understanding is how Stella Trompet perceives the growth of her students. She serves as a lecturer in the half-minor and master's programme Health, Ageing, and Society at LUMC/Leiden Univers…

Join the OSCL community to share your experience and learn more from others at Leiden University

De opening of the Academic Year 2021-2022 took place on Monday 6 September 2021 in Pieterskerk church.

Promotores: Prof.dr. B.R. Katzy, Prof.dr. K. Sailer (Munich University)

The opening of the Academic Year 2019-2020 took place on Monday 2 September 2019 in Pieterskerk church.

De opening of the Academic Year 2022-2023 took place on Monday 5 September 2022 in Pieterskerk church.

De opening of the Academic Year 2023-2024 took place on Monday 4 September 2023 in Pieterskerk church.

Open online education has become a highly popular method of education. The current project aims to further our knowledge of how open online courses can be best designed to be consistent with human learning mechanics and facilitate meaningful learning.

Leiden University offers support in the different stages of your research lifecycle.

On 10 October 2019, Janneke Vink defended her thesis 'The Open Society and Its Animals'. The doctoral research was supervised by Prof. P.B. Cliteur.

The opening of the Academic Year 2020-2021 took place on Monday 31 August 2020 in Pieterskerk church.

The opening of the Academic Year 2018-2019 took place on Monday 3 September 2018 in Pieterskerk church.

The opening of the Academic Year 2016-2017 took place on Monday 5 September 2016 in Pieterskerk church.

The opening of the Academic Year 2017-2018 took place on Monday 4 September 2017 in Pieterskerk church.

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Leer meer over de Educatieve Master Primair Onderwijs tijdens de Online Master's Open Dag van de Universiteit Leiden.

In recent years, the use of primary data in terrorism research has increased. In order to maximise the benefits of this trend, we want to encourage terrorism scholars to implement open science practices more systematically. This article therefore presents different avenues towards open and reproducible…

Read more about the International Network Open Science & Scholarship Communities in our Vision and Mission statements.

Who are open-source intelligence activists and how reliable are their contributions to public understanding of Russia’s war in Ukraine?

Change requires community. Become a member of OSCL today!

Study information

Open Educational Resources (OER) have the potential to change teaching in Higher Education, but adoption is low despite the growing amount of resources available. The current project aims to investigate if and how teacher communities can foster adoption of OER in curricula.

Study information

On 14 May 2020, Pieter Rustenburg defended his thesis 'Een algemene normtheorie toegepast op open normen in het belastingrecht'. The doctoral research was supervised by Prof. A.O. Lubbers and Prof. J.L.M. Gribnau.

We are living in an information era where the amount of image and video data increases exponentially.

The treasure houses of Leiden's University Library and Naturalis house wonderful historical collections with dried plants and botanical drawings. Tinde van Andel, extraordinary professor of History of botany and gardens, studies these collections.

The Leiden University’s Program for Cyber Norms, a research platform to investigate the development and implementation of law and policy applicable to uses of ICTs, in cooperation with the think-tank ICT4Peace conducted a global open consultation on how to implement the UN Group of Governmental Experts’…