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Carsten Rockstuhl

@crockstuhl

Scientist working in the field of optics and photonics on the nanoscale.

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17.10.2023
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Latest posts by Carsten Rockstuhl @crockstuhl

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We show how topology optimization with a novel parameterization enables ultra-compact, robust, and broadband couplers for photonic wire bonds. A step toward fully exploiting 3D nanoprinting for photonics integration!! πŸ’‘πŸ§ͺ Thanks to @cluster3dmm2o.bsky.social
for support! doi.org/10.1109/JLT....

28.04.2025 06:04 πŸ‘ 5 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Our work on a multi-objective inverse design approach for 3D nanoprinting was published (doi.org/10.1515/nano...)! We combine a Maxwell solver with heat diffusion to ensure performance and fabrication feasibility of 3D free-form photonic devices. Thanks to 
@cluster3dmm2o.bsky.social for support!

24.04.2025 05:39 πŸ‘ 8 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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We demonstrate multiphoton quantum interference in an ultracompact, topology-optimized tritter (8.0Γ—4.5β€―Β΅mΒ²). We show that high-performance quantum photonic circuits can be small and scalable. Joint work of
@cluster3dmm2o.bsky.social
+ @unistuttgart.bsky.social out here: arxiv.org/abs/2504.00114

08.04.2025 04:51 πŸ‘ 7 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Our Cluster PI @crockstuhl.bsky.social from @kit.edu just presented innovative methods for inverse design of 3D printed photonic devices. His work sets new standards in the control of light propagation for various advanced applications.πŸš€ #Photonics #3DPrinting #ClusterConference #3DMM2O

25.03.2025 15:50 πŸ‘ 3 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Super excited to share our latest work in #OPG_AOP, a review covering the theoretical, numerical, and experimental aspects of research on disordered optical metasurfaces. Read it here: bit.ly/4i6cTo9

09.03.2025 12:48 πŸ‘ 5 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Optical response function in the complex frequency plane, featuring three resonances a,b,c. https://doi.org/10.48550/arXiv.2503.03549

Optical response function in the complex frequency plane, featuring three resonances a,b,c. https://doi.org/10.48550/arXiv.2503.03549

Resonances on different Riemann sheets greatly impact optical response in #photonic systems with #BranchCuts: Preprint doi.org/10.48550/arX... collab. @crockstuhl.bsky.social at KIT, Koenderink group @amolf-nl.bsky.social, @jcmwave.bsky.social, #AAARationalApproximation @mathplusberlin.bsky.social

06.03.2025 13:22 πŸ‘ 9 πŸ” 5 πŸ’¬ 0 πŸ“Œ 0
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A Framework to Compute Resonances Arising from Multiple Scattering Photonic resonances frequently arise from the interaction among multiple scatterers. It is shown how prior knowledge of such constituents can be used to compute resonances in nanophotonic systems eff...

Joint work with KIT @crockstuhl.bsky.social and IBM Research appeared in Wiley Special Collection: #ArtificialIntelligence, #DeepLearning & #Optimization Methods, doi.org/10.1002/adts... #AAARationalApproximation #photonics @felixbinkowski.bsky.social @mathplusberlin.bsky.social @jcmwave.bsky.social

26.02.2025 11:04 πŸ‘ 5 πŸ” 1 πŸ’¬ 0 πŸ“Œ 1
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πŸš€πŸ”­ Detecting gravitational waves in an undergrad lab? Unfortunately, not yet. However, analogy experiments can be done so students can explore many involved phenomena. Our new experiment teaches how matched filtering uncovers weak signalsβ€”just like LIGO! [https://doi.org/10.1119/5.0219962]

26.02.2025 08:51 πŸ‘ 4 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
IEEE Has a Pseudoscience Problem Guest post by Solal Pirelli The IEEE, full name Institute of Electrical and Electronics Engineers, is one of the main scientific publisher...

thanks to @solalpirelli.bsky.social for this nice piece on pseudoscience published by IEEE - and the need for the publisher to step up to the plate and start retracting this garbage if they want to retain any credibility.
deevybee.blogspot.com/2025/02/ieee...

22.02.2025 13:24 πŸ‘ 62 πŸ” 36 πŸ’¬ 3 πŸ“Œ 9
Prof. Rahmstorf: Was bedeuten 3 Grad mehr?
Prof. Rahmstorf: Was bedeuten 3 Grad mehr? YouTube video by Earth System Analysis - Potsdam Institute

Bei der Bundestagswahl geht es um viel: nicht weniger als die Zukunftschancen unserer Kinder & Enkel. Die Welt ist in einem Wettlauf gegen die Zeit, eine katastrophale 3-Grad-Welt zu verhindern. Was auf dem Spiel steht hier nochmal kurz aus erster Forscherhand erklΓ€rt. ▢️ youtu.be/M6NWcKb5QBs?...

22.02.2025 14:19 πŸ‘ 523 πŸ” 208 πŸ’¬ 10 πŸ“Œ 3
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Excited to share our latest work in #OPG_AOP, a tutorial providing a comprehensive overview of photonic time crystals. Read it here: bit.ly/4ibNtoT

11.02.2025 18:14 πŸ‘ 3 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Some impressions from a lovely trip to the outskirts of Potsdam!

04.02.2025 10:25 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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It's always great to witness a successful graduation, and somewhat sad at the same time to see them leaving. All the best, Mitchell, for whatever comes in your future! Kudos to you, and thanks for all the time we shared.

03.02.2025 06:38 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Schematics: optical scattering for an arbitrary scatterer in free space. Ref.: http://dx.doi.org/10.1016/j.jqsrt.2024.109310

Schematics: optical scattering for an arbitrary scatterer in free space. Ref.: http://dx.doi.org/10.1016/j.jqsrt.2024.109310

Easy sharing of T-matrices for optical scattering by using a standard data format: Joint effort of 25 groups active in the field, headed by @crockstuhl.bsky.social - Published in J. Quant. Spectrosc. Radiat. Transf.: dx.doi.org/10.1016/j.jq...

08.01.2025 09:31 πŸ‘ 3 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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A Framework to Compute Resonances Arising from Multiple Scattering Photonic resonances frequently arise from the interaction among multiple scatterers. It is shown how prior knowledge of such constituents can be used to compute resonances in nanophotonic systems eff....

Computing #photonic #resonances using Tmatrix multi-scattering &#AAARationalApproximation. Collaboration with JDFischbach @crockstuhl.bsky.social, @felixbinkowski.bsky.social @zuseinstitute.bsky.social, #IBMresearch, @jcmwave.bsky.social, Paper in Adv Theory Simul doi.org/10.1002/adts...

11.12.2024 08:48 πŸ‘ 5 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0
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On my way across the optics and photonics landscape in Bordeaux! πŸ’‘

19.01.2024 15:33 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I can understand that feeling very well! On my side, it is just three more weeks to go, after equally roughly 12 years. I wonder what I will do in my evenings in the future… πŸ€”. And of course, thanks for all your dedication!

πŸ§ͺπŸ’‘

08.01.2024 19:07 πŸ‘ 3 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0
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The bunch of marvelous people working on theoretical and computational nanophotonics at KIT. Taken at our retreat last week. So proud of each of them. πŸ’‘

28.11.2023 04:17 πŸ‘ 6 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Group retreat 2023 is in full swing.

22.11.2023 05:38 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Group picture with the fantastic #Photonics students, with whom we had a seminar on scientific writing co-organized byΒ @optica.bsky.socialΒ andΒ @opticapubsgroup.bsky.social. Great to discuss with the students many issues around publishing an article from the perspective of an author and editor.πŸ’‘

07.11.2023 14:51 πŸ‘ 4 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Hi Eric, I can speak only for myself, but I find it great to read anything related to #Optics and #Photonics, including news about manuscripts. From you and others (cheers to @vynisle.bsky.social! Sprinkle in some personal insights into what it means to work in that field at the place where you are!

04.11.2023 09:58 πŸ‘ 3 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0
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Autumn doesn't look that bad from a #Photonics perspective (and as long as you are inside πŸ˜†). Beautiful colors everywhere (in reality, maybe more impressive) πŸ’‘.

31.10.2023 19:28 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Welcome to #photonics Bluesky @acalalesina.bsky.social !πŸ’‘

30.10.2023 09:07 πŸ‘ 4 πŸ” 1 πŸ’¬ 2 πŸ“Œ 1
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It was super nice to discuss Optics Letters issues, and many other things, with Miguel in Marseille.

25.10.2023 06:03 πŸ‘ 7 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Thanks everybody, for welcoming me! Excited to join the other site.πŸ˜€

18.10.2023 05:14 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0