Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Christiansen, Rasmus Ellebæk"'
Precise spatial manipulation of particles via optical forces is essential in many research areas, ranging from biophysics to atomic physics. Central to this effort is the challenge of designing optical systems that are optimized for specific applicat
Externí odkaz:
http://arxiv.org/abs/2410.20009
Autor:
Jokisch, Beñat Martinez de Aguirre, Gøtzsche, Benjamin Falkenberg, Kristensen, Philip Trøst, Wubs, Martijn, Sigmund, Ole, Christiansen, Rasmus Ellebæk
Publikováno v:
ACS Photonics (2024)
Optical trapping enables precise control of individual particles of different sizes, such as atoms, molecules, or nanospheres. Optical tweezers provide free-space omnidirectional optical trapping of objects in laboratories around the world. As an alt
Externí odkaz:
http://arxiv.org/abs/2404.15102
Autor:
Rosiek, Christian Anker, Arregui, Guillermo, Vladimirova, Anastasiia, Albrechtsen, Marcus, Lahijani, Babak Vosoughi, Christiansen, Rasmus Ellebæk, Stobbe, Søren
Publikováno v:
Nat. Photon. 17 (2023) 386-392
The unique properties of light underpin the visions of photonic quantum technologies, optical interconnects, and a wide range of novel sensors, but a key limiting factor today is losses due to either absorption or backscattering on defects. Recent de
Externí odkaz:
http://arxiv.org/abs/2206.11741
Autor:
Albrechtsen, Marcus, Lahijani, Babak Vosoughi, Christiansen, Rasmus Ellebæk, Nguyen, Vy Thi Hoang, Casses, Laura Nevenka, Hansen, Søren Engelberth, Stenger, Nicolas, Sigmund, Ole, Jansen, Henri, Mørk, Jesper, Stobbe, Søren
Publikováno v:
Nat. Commun. 13 (2022), 6281
Nanotechnology enables in principle a precise mapping from design to device but relied so far on human intuition and simple optimizations. In nanophotonics, a central question is how to make devices in which the light-matter interaction strength is l
Externí odkaz:
http://arxiv.org/abs/2108.01681
Publikováno v:
Applied Physics Letters 113, 241101 (2018)
Small manufacturing-tolerant photonic crystal cavities are systematically designed using topology optimization to enhance the ratio between quality factor and mode volume, Q/V. For relaxed manufacturing tolerance, a cavity with bow-tie shape is obtai
Externí odkaz:
http://arxiv.org/abs/1810.02417
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Autor:
Christiansen, Rasmus Ellebæk
Publikováno v:
Christiansen, R E 2023, ' Inverse design of optical mode converters by topology optimization: tutorial ', Journal of Optics, vol. 25, 083501 . https://doi.org/10.1088/2040-8986/acdbdd
This tutorial details the use of topology optimization (TopOpt) for the inverse design of electromagnetic mode-converters. First, the design problem under consideration is stated. Second, suitable models for the geometry and physics are formulated an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______1202::12e77962ddff9f2b0488ab56c353cc7e
https://orbit.dtu.dk/en/publications/44fa4027-0ed4-47fe-a913-f0deffc1d252
https://orbit.dtu.dk/en/publications/44fa4027-0ed4-47fe-a913-f0deffc1d252
Autor:
Hansen, Søren Engelberth, Arregui Bravo, Guillermo, Christiansen, Rasmus Ellebæk, Stobbe, Søren
Publikováno v:
Hansen, S E, Arregui Bravo, G, Christiansen, R E & Stobbe, S 2023, ' Inverse design of compact and broadband nanophotonic beamsplitters ', XXIX International Workshop on Optical Wave & Waveguide Theory and Numerical Modelling, Marseille, France, 04/05/2023-05/05/2023 pp. 1 .
We present the development of a compact broadband silicon photonics beamsplitter using inverse design by topology optimization. The proposed device achieves an excess loss of -0.11 dB at 1550 nm, a 1-dB bandwidth of 800 nm, and return losses below -1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______1202::fc0af1096ac204f7eb69f452e70e329f
https://orbit.dtu.dk/en/publications/eafed617-6796-4875-877f-d9fa743dc5f7
https://orbit.dtu.dk/en/publications/eafed617-6796-4875-877f-d9fa743dc5f7