I am a tenure track assistant professor at the University of Twente (UT). My reserach focuses on using plasmonic nanocavities to enhance light-matter interactions with bio-molecules. I use novel approaches to enhance optical fields at the nanoscale, for ultrasensitive sensing and to probe bio molecular dynamics. I am leading the Dynamic Nanophotonic team that is currently hosted by the Optical Sciences chair, which is part of the department of Applied Nanophotonics at the UT.Â
Before joining UT, I was a postdoctoral researcher at the NanoPhotonic Center, Cavendish Laboratory, University of Cambridge from 2017 to 2020 and my research focused on light-matter interaction in ultrasmall mode volume plasmonic nanocavities. This research was funded by the NWO Rubicon fellowship. In 2016, I obtained a PhD degree (cum laude) from the University of Twente, and worked on controlling and enhancing optical energy density (using wavefront shaping) inside complex nanophotonic systems. Prior to that, I obtained a masterâs degree in photonics from the Abbe School of Photonics at the University of Jena, Germany and a bachelor in physics/electronics from the Federal University of Technology, Minna, Nigeria.
Organisations
Research interests: nanophotonics - plasmonics - light-matter interactions - Raman spectroscopy - protein dynamics - bio-sensing - wavefront shaping Â
Publications
21. M. Wang, T. Wang, O. S. Ojambati, T.J Duffin, K. Kang, T. Lee, E. Scheer, D. Xiang, C. A. Nijhuis, "Plasmonic phenomena in molecular junctions: principles and applications", Nature Reviews Chemistry, 1-24 (2022)
20. O.S. Ojambati, "Optical energy on demand", Nature Physics 18 (3), 227-228 (2022)
19. L. A Jakob, W. M. Deacon, O. Hicks, I. Manyakin, O. S Ojambati, M. Traxler, J. J Baumberg, Single photon multiclock lock-in detection by picosecond timestamping, Optica 8 (12), 1646-1653 (2021)
18. R. Pandya, R.Y.S Chen, Q. Gu, J. Sung, C. Schnedermann, O.S. Ojambati, et al. Microcavity-like exciton-polaritons can be the primary photoexcitation in bare organic semiconductors. Nat Commun 12, 6519 (2021). https://doi.org/10.1038/s41467-021-26617-w
17. O.S. Ojambati, K.B. Arnardottir, B. W. Lovett, J. Keeling, J. J. Baumberg, "Few-emitter lasing in single ultra-small nanocavities", arXiv preprint arXiv:2107.14304
16. J. Huang, O. S. Ojambati, R. Chikkaraddy, K. Sokolowski, Q. Wan, J. J. Baumberg, âPlasmon-induced trap state emission of single quantum dotsâ, Physical Review Letters 126, 047402 (2021). DOI: 10.1103/PhysRevLett.126.047402
15. O. S. Ojambati, W. M. Deacon, R. Chikkaraddy, C. Readman, Q. Lin, Z. Koczor-Benda, E. Rosta, O. A. Scherman, J.J. Baumberg, âBreaking the selection rules of spin-forbidden transitions in plasmonic nanocavities", ACS Photonics 7, 9, 2337â2342 (2020). DOI: 10.1021/acsphotonics.0c00732
14. A. Casalis de Pury, X. Zheng, O. S. Ojambati, A. Trifonov, C. Grosse, M-E. Kleemann, V. Babenko, D. Purdie, T. Taniguchi, K. Watanabe, A. Lombardo, G.A.E. Vandenbosch, S. Hofmann, and J.J. Baumberg, âLocalised nano-resonator mode in plasmonic microcavitiesâ, Physical Review Letters 124, 093901 (2020). DOI:Â 10.1103/PhysRevLett.124.093901
13. M. J. Horton, O. S. Ojambati, R. Chikkaraddy, W. M. Deacon, N. Kongsuwan, A. Demetriadou, O. Hess, J. J. Baumberg, âNanoscopy through plasmonic nano-lensesâ, Â Proceedings of National Academy of Science 117 (5) (2020). DOI:Â 10.1073/pnas.1914713117
12. O. S. Ojambati, R. Chikkaraddy, W. M. Deacon, J. Huang, D. Wright, J. J. Baumberg. âEfficient generation of two-photon excited phosphorescence from molecules in plasmonic nanocavitiesâ, Nano Letters 20, 6, 4653â4658 (2020). DOI: 10.1021/acs.nanolett.0c01593
11. M. Kamp, B. de Nijs, N. Kongsuwan, M. Saba, R. Chikkaraddy, C. A. Readman, W. M. Deacon, J. P. Griffiths, S. J. Barrow, O. S. Ojambati, D. A. Wright, J. Huang, O. Hess, O. A. Scherman and J. J. Baumberg. âCascaded Nano-Optics to Probe Microsecond Molecular Dynamicsâ, Proceedings of National Academy of Science 117 (26) (2020). DOI: 10.1073/pnas.1920091117
10. O. S. Ojambati, R. Chikkaraddy, W. Deacon, M. Horton, D. Kos, V. A. Turek, U. Keyser, J. J. Baumberg, âQuantum electrodynamics at room temperature coupling a single vibrating molecule with a plasmonic nanocavityâ, Nature Communications 10 (2019). DOI: 10.1038/s41467-019-08611-5Â
9. D. Devashish, O. S. Ojambati, S. B. Hasan, J. J. W. van der Vegt, W. L. Vos, âThree-dimensional photonic band gap cavity with finite support: enhanced energy density and optical absorptionâ, Physical Review B 99 (075112), 2019.
8. P. Hong*, O. S. Ojambati*, A. Lagendijk, A. P. Mosk, W. L. Vos, âThree-dimensional spatially-resolved optical energy density enhanced by wavefront shaping.â Optica 5, 844 (2018).*Equal contributions.
7. F. Mariani, W. Loeffler, M. Aas, O. S. Ojambati, P. Hong, W. L. Vos, M. P. van Exter, âScattering media characterization with phase-only wavefront modulationâ, Optics Express 26, 2369 (2018).Â
6. O. S. Ojambati, H. Yılmaz, A. Lagendijk, A. P. Mosk, W. L. Vos, âCoupling of energy into the fundamental diffusion mode of a complex nanophotonic medium.â New Journal of Physics 18, 043032 (2016).
5. O. S. Ojambati, A. P. Mosk, I. M. Vellekoop, A. Lagendijk, W. L. Vos, âMapping the energy density of shaped waves in scattering media onto a complete set of diffusion modesâ, Optics Express 24, 18525 (2016).Â
4. O. S. Ojambati, J. T. Hosmer-Quint, K. J. Gorter, A. P. Mosk, W. L. Vos, âControlling the intensity of light in large areas at the interfaces of a scattering mediumâ, Physical Review A 54, 043834 (2016).
3. M. A. Aweda, M. Agida, M. Dada, O. B. Awojoyogbe, K. Isah, O. P. Faromika, K. B. M. Boubaker, K. De, O. S. Ojambati, âBoubaker Polynomials Expansion Scheme Solution to the Heat Transfer Equation Inside Laser Heated Biological Tissuesâ, Journal of Heat Transfer. 134, 064503 â 064504, (2012).Â
2. O. B. Awojoyogbe, O. P. Faromika, M. Dada, K. Boubaker, O. S. Ojambati, âMathematical Models of Real Geometrical Factors in Restricted Blood Vessels for the Analysis of CAD (Coronary Artery Diseases) Using Legendre, Boubaker and Bessel Polynomials,â Journal of Medical Systems 35, 1513 â 1520, (2011).
1. M. A. Aweda, M. Agida, M. Dada, O. B. Awojoyogbe, K. Isah, O. P. Faromika, K. Boubaker, K. De, O. S. Ojambati, âA solution to Laser-induced Heat Equation inside a Two-layer Tissue Model Using Boubaker Polynomials Expansion Scheme", Journal of Laser Micro/Nanoengineering 6, 105 â 109 (2011).Â
Research profiles
There are topics available for bachelor and master projects. Please, contact Femi Ojambati (o.s.ojambati@utwente.nl), if interested.
Courses academic year 2023/2024
Courses in the current academic year are added at the moment they are finalised in the Osiris system. Therefore it is possible that the list is not yet complete for the whole academic year.
- 193599010 - Internship
- 193599039 - Master Thesis: Physics Aspects
- 193599089 - Master Thesis: General Aspects
- 201700185 - Internship
- 201800344 - Master's Assignment: Physics Aspects
- 201800345 - Master's Assignment: General Aspects
- 202000613 - Project Mechanics
- 202000702 - Statistical Physics
- 202000711 - Technical Optics
- 202000716 - Bachelor Assignment
- 202000855 - M10 Imaging & Diagnostics
- 202000880 - M12 BSc Assignment BMT
- 202200044 - Fundamentals of Photonics
- 202200047 - NanoPlasmonics
Courses academic year 2022/2023
Address
University of Twente
Carré (building no. 15), room C4437
Hallenweg 23
7522 NH Enschede
Netherlands
University of Twente
Carré C4437
P.O. Box 217
7500 AE Enschede
Netherlands
Organisations
Additional contact information
Office number: C4437
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