7 papers
Spectrally smooth broadband response via autocorrelation-constrained inverse design
Johannes Gedeon, Rasmus E. Christiansen, Rasmus Ellebæk Christiansen +1
Time-domain inverse design in photonics is known to be suitable for maximizing the efficiency of optical devices over broad frequency ranges. Objectives commonly used in this conte…
Orders-of-magnitude reduction in photonic mode volume by nano-sculpting
Rasmus E. Christiansen, Jesper Mørk, Ole Sigmund
Achieving strong light-matter interaction is important for studying and exploiting several physics phenomena. The light-matter interaction strength depends on the optical field int…
Electronic-photonic circuit crossings
Babak Vosoughi Lahijani, Marcus Albrechtsen, Rasmus Christiansen +4
Electrical control of light in integrated photonics is central to a wide range of research and applications. It is conventionally achieved with thermo-optic tuning, but this suffer…
Engineering optical forces through Maxwell stress tensor inverse design
Beñat Martinez de Aguirre Jokisch, Rasmus Ellebæk Christiansen, Ole Sigmund
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…
On performance bounds for topology optimization
Anna Dalklint, Rasmus E. Christiansen, Ole Sigmund
Topology optimization has matured to become a powerful engineering design tool that is capable of designing extraordinary structures and materials taking into account various physi…
Omnidirectional gradient force optical trapping in dielectric nanocavities by inverse design
Beñat Martinez de Aguirre Jokisch, Benjamin Falkenberg Gøtzsche, Philip Trøst Kristensen +3
Optical trapping enables precise control of individual particles of different sizes, such as atoms, molecules, or nanospheres. Optical tweezers provide free-space omnidirectional o…