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KaLKMaNLaB

@kalkmanlab.bsky.social
139 followers 54 following 44 posts
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KaLKMaNLaB @kalkmanlab.bsky.social · 16/09/2026
Our group is present at the Dutch Photonics Event in Den Bosch. Wei-Yun Lee presents his poster on efficient anisoplanatic aberration correction.
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KaLKMaNLaB @kalkmanlab.bsky.social · 10/09/2026
Also in the same project we have an opening for a PhD student under the supervision of Omar El Gawhary careers.tudelft.nl/job/Delft-Ph...
careers.tudelft.nl
PhD Position Amplitude & Phase Control in Optical Metrology
PhD Position Amplitude & Phase Control in Optical Metrology
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KaLKMaNLaB @kalkmanlab.bsky.social · 09/09/2026
We have a job opening in my group for a PhD position on on digital holography. careers.tudelft.nl/job/Delft-Ph... Please contact me if you are interested.
careers.tudelft.nl
PhD Position Digital Holography for Metrology
PhD Position Digital Holography for Metrology
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KaLKMaNLaB @kalkmanlab.bsky.social · 27/07/2026
Our group was present at the Medical Delta CARES consortium meeting at the Hague University of Applied Sciences. www.medicaldelta.nl/nieuws/medic...
medicaldelta.nl
Medical Delta Programma CARES consortiummeeting 2026
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KaLKMaNLaB @kalkmanlab.bsky.social · 09/07/2026
Great defense at #TUD today. Congratulations to our new doctor Huangcheng Shangguan.
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KaLKMaNLaB @kalkmanlab.bsky.social · 01/07/2026
Our group and the CARES Medical Delta consortium was present at the first Dutch Biomedical Optics meeting. medicaldelta.nl/nieuws/medic...
medicaldelta.nl
Medical Delta Programma CARES op eerste Dutch Biomedical Optics-bijeenkomst
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KaLKMaNLaB @kalkmanlab.bsky.social · 19/06/2026
Presenting our work on 'Optical diffraction tomography for 3D digital pathology ' at the first Dutch Biomedical Optics meeting in Enschede.
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KaLKMaNLaB @kalkmanlab.bsky.social · 25/04/2026
We collaborated with a team from @w-u-r.bsky.social in the non-destructive imaging of the formation of aerenchyma in plant roots with OCT. More details can be found here doi.org/10.1080/1462...
doi.org
Physiological responses of basil to low oxygen availability in soilless culture
Soilless cultivation systems in controlled environment agriculture create varying rootzone oxygen conditions, which can impact biomass production. The present study investigates the effect of mild ...
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KaLKMaNLaB @kalkmanlab.bsky.social · 16/01/2026
We have a new PhD position available in our group! Do you want to build advanced OCT systems and apply them in healthcare then this position may just be something for you. careers.tudelft.nl/job/Delft-Ph...
careers.tudelft.nl
PhD Position Optical Coherence Tomography for Skin Diagnostics
PhD Position Optical Coherence Tomography for Skin Diagnostics
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KaLKMaNLaB @kalkmanlab.bsky.social · 11/12/2025
Our latest work on “Lensless single-shot dual-wavelength digital holography with sub-pixel resolution and centimeter depth range“ is published in APL photonics doi.org/10.1063/5.02...
doi.org
Lensless single-shot dual-wavelength digital holography with sub-pixel resolution and centimeter depth range
Lensless single-shot dual-wavelength digital holography is resolution limited by the pixel-size of the camera and often has an insufficient depth range. We pres
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KaLKMaNLaB @kalkmanlab.bsky.social · 28/11/2025
Very pleased to be part of the AI4optics consortium that received an NWO Perspectief grant to work on AI for optical design and imaging. The consortium consists of TU Eindhoven, Leiden University, CWI/Utrecht University, and TU Delft www.nwo.nl/nieuws/twaal...
nwo.nl
Twaalf Perspectief-projecten van start door miljoeneninvestering in technologische innovatie | NWO
Maar liefst twaalf consortia kunnen door het Perspectief-programma starten met hun onderzoeksprojecten gericht op het (door)ontwikkelen van technologische innovaties. Bij deze projecten staat hun maatschappelijke en economische impact centraal. Zij ontvangen vanuit het ministerie van Economische Zaken en NWO in totaal 46,4 miljoen euro aan financiering. Bedrijven en andere partners voegen daar nog eens 19,6 miljoen euro aan toe. Het Perspectief-programma geeft hiermee een belangrijke impuls aan de technologische innovatiekracht van Nederland.
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KaLKMaNLaB @kalkmanlab.bsky.social · 16/10/2025
Presenting an overview of our work on OCT at the European Machine Vision Forum in Fürth.
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KaLKMaNLaB @kalkmanlab.bsky.social · 09/10/2025
Being active with updating and making group software accessible. Now everything on OCT useful Jupyter notebooks with more to come on ODT and holography. Please check it out at home.imphys.tudelft.nl/~jeroenkalkm...
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KaLKMaNLaB @kalkmanlab.bsky.social · 04/09/2025
Starting the course Advanced Optical Imaging for 2025-2026. See our course material for more information qiweb.tudelft.nl/aoi/frontmat...
qiweb.tudelft.nl
Advanced optical imaging — Advanced Optical Imaging
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KaLKMaNLaB @kalkmanlab.bsky.social · 02/09/2025
Today, September 2nd, Peter Speets defends his PhD thesis entitled: 'Optical interferometric multi-parameter flow sensing of particle suspensions with complex refractive index models'.
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KaLKMaNLaB @kalkmanlab.bsky.social · 27/08/2025
Our group is present at #EOSAM2025 conference in Delft with an invited and poster presentation.
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KaLKMaNLaB @kalkmanlab.bsky.social · 30/07/2025
Our most recent work is out on OCT flowmetry in organ-on-chip (OoC) devices, see rdcu.be/eytR3. In this work we took on the challenge of measuring very small flow speeds in a OoC device using particle-image velocimetry and number-fluctuation OCT.
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KaLKMaNLaB @kalkmanlab.bsky.social · 21/07/2025
Looking back to a great meeting of the Medical Delta CARES consortium working on sustainable healthcare. www.medicaldelta.nl/nieuws/eerst...
medicaldelta.nl
Eerste Medical Delta CARES consortiummeeting
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KaLKMaNLaB @kalkmanlab.bsky.social · 14/07/2025
Looking forward to do exciting work on broadband OCT in the NextDeLights project together with the Hague University of Applied Sciences, @erasmusmc.bsky.social, Super light photonics, and QDI systems. Program is part of KIC call future optical broadband systems. www.nwo.nl/en/news/six-...
nwo.nl
Six interdisciplinary research projects on optical broadband systems receive funding | NWO
Optical broadband systems play an important role in various sectors, from health diagnostics to the agri-food sector. In order to (further) develop these technologies, the Future Optical Broadband Systems research programme was launched within the Knowledge and Innovation Covenant. With this funding, six consortia can start interdisciplinary research into semiconductor chips, hyperspectral imaging and tomography imaging, amongst others.
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KaLKMaNLaB @kalkmanlab.bsky.social · 18/06/2025
Visiting the SFB Tomography across scales conference in Strobl. Great presentations in a relaxing environment.
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KaLKMaNLaB @kalkmanlab.bsky.social · 30/05/2025
These two scientists not only shared a Nobel prize, but are also buried at the same cemetery, which happens to be right around the corner from my home. Gravestones of Lorentz and Zeeman at Kleverlaan cemetery Haarlem.
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KaLKMaNLaB @kalkmanlab.bsky.social · 08/04/2025
Being in a PhD defence is particularly fun when you are on topic and when the quality of the work is good. Great work from Johannes Kuebler.
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KaLKMaNLaB @kalkmanlab.bsky.social · 19/03/2025
Presenting our work on '3D computational resolution enhancement in OCT' at the Dutch center for nanolithography research ARCNL
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KaLKMaNLaB @kalkmanlab.bsky.social · 24/01/2025
And off we go to @spie.org Photonics West sharing our latest results in dynamic light scattering OCT.
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KaLKMaNLaB @kalkmanlab.bsky.social · 21/01/2025
We are joining the great annual Dutch physics conference. With tomorrow a focus session on Dynamic light scattering on soft and living matter.
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Reposted by KaLKMaNLaB
Imaging Physics Department - Technical University Delft, NL @imphys-tudelft.bsky.social · 20/01/2025
Today January 20th at 17:30 hrs, Kote Cheishvili will defend his doctoral thesis: "Advancements in dynamic light scattering optical coherence tomography particle sizing and flowmetry " @Delft University of Technology. Check out his thesis: buff.ly/42cqsxc 🎇 Wishing Kote great success!
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KaLKMaNLaB @kalkmanlab.bsky.social · 09/01/2025
Good feeling to see a new PhD thesis from the group printed and on my desk. Defence follows soon.
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KaLKMaNLaB @kalkmanlab.bsky.social · 01/01/2025
New year resolution achieved, the divorce is final, @KaLKMaNLaB on X no longer exists.
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KaLKMaNLaB @kalkmanlab.bsky.social · 02/12/2024
ImPhys post-doc Vahid Khandan successfully defended his PhD thesis at Groningen University. Congratulations 🎉
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KaLKMaNLaB @kalkmanlab.bsky.social · 28/11/2024
Why are project proposal templates always in Word and never in the scientists preferred Latex format? Fighting with Word the entire morning just to finish in time before the deadline 🎉😬💪🏻
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KaLKMaNLaB @kalkmanlab.bsky.social · 16/11/2024
My department is now on Bluesky 🎉🥳🍻 Please follow it on @imphys-tudelft.bsky.social
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KaLKMaNLaB @kalkmanlab.bsky.social · 30/09/2024
I am excited to share that our paper that has just been published in Nature Communications! We show non-invasive real-time 3D dynamic OCT imaging of pathogen development in plants, their growth rates, and quantify plant pathogen resistance. See: rdcu.be/dViJ and www.tudelft.nl/en/2024/tnw/... 💡
doi.org
Revealing real-time 3D in vivo pathogen dynamics in plants by label-free optical coherence tomography - Nature Communications
3D in vivo pathogen dynamics in plants is visualized with label-free optical coherence tomography. Using image analysis, downy mildew infection is quantified in lettuce genotypes with different resist...
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KaLKMaNLaB @kalkmanlab.bsky.social · 03/09/2024
Speaker at 10 year anniversary of In process
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KaLKMaNLaB @kalkmanlab.bsky.social · 29/08/2024
Excited to start my research visit at CWI's computational imaging group www.cwi.nl/en/news/visi...
cwi.nl
Visiting professor at CWI's Computational Imaging group
jeroen kalkman of TU Delft visits cwi's flexray lab.
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KaLKMaNLaB @kalkmanlab.bsky.social · 16/07/2024
Recently published work by our group showed the application of dual-wavelength digital holography for industrial metrology. We used two wavelengths in a lensless digital holography system to extend the depth range to 50 micrometer. More details can be found in doi.org/10.1364/AO.5...
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KaLKMaNLaB @kalkmanlab.bsky.social · 24/05/2024
Our latest work is out on wavenumber dependent dynamic light scattering optical coherence tomography doi.org/10.1364/OE.521702 What did we do? We improved DLS-OCT to measure particle size for dense colloidal suspensions where particle ordering plays a role in particle diffusion.
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KaLKMaNLaB @kalkmanlab.bsky.social · 16/01/2024
Our paper on the quantification of the complex refractive index is out opg.optica.org/josaa/fullte...
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KaLKMaNLaB @kalkmanlab.bsky.social · 16/01/2024
Our paper on quantification of the complex refractive index is out opg.optica.org/josaa/fullte...
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