Brian Vohnsen
Brian Vohnsen

Brian Vohnsen is an Associate Professor of Physics at UCD[1] in Dublin, Ireland specializing in optics. He is head of the Advanced Optical Imaging Group which he founded in 2008.[2][3] He has received recognition for his ability to connect the field of biomedical optics and nano-optics.[4] In 2021 he became a fellow of Optica for significant contributions to vision science, including photoreceptor optics and high resolution retinal imaging.[5]

Early life and education

Brian Vohnsen, born in Aarhus Denmark studied Engineering at Aalborg University before transferring into the field of Optics.[5] In 1994 he graduated with a Masters of Science in Optical Engineering and Laser Technology before going on to complete a PhD in Optical Physics at the same university in 1998.[1] He went on to become an Assistant Professor at Aalborg University for 3 years after completing his PhD, before moving to Spain after being awarded a Marie-Curie Fellowship[5] where he worked as a researcher in Universidad de Murcia[3] alongside Pablo Artal for 7 years (2001 - 2008). During this time he was also awarded a Ramon y Cajal fellowship.[3] In 2008 he moved to Ireland in search of further research opportunities and started working in University College Dublin where he still works today. During his travels Brian has gained Fluency / Professional Working Proficiency in Danish, English, German and Spanish.[1]

Professional biography

Vohnsen did his PhD in the area of nano-photonics and near-field optics at Aalborg University under Sergey I. Bozhevolnyi.[6] He did a postdoctoral fellowship at Universidad de Murcia funded by a Marie-Curie Fellowship where he worked on topics such as Evanescent field and directional imaging including a 2001 research paper on visualizing evanescent waves ("Direct visualization of evanescent optical waves")[7] and imaging of retinal cone mosaic ("Directional imaging of the retinal cone mosaic").[8]

In 2008 Vohnsen came to Ireland as a Science Foundation Ireland Stokes awardee and created a new MSc. programme in NanoBio Science[3][9] while also exploring advanced optical techniques centered on high-resolution optical images.[10] Lately, he has pioneered new exploration of the Stiles-Crawford effect in relation to vision science[11] and myopia.[12]

Awards and honours

  • Optica fellowship (2021)[5]
  • Stokes Lectureship award (2008)[10]
  • Ramon y Cajal Fellowship (2003 – 2008)[3]
  • Marie-Curie Fellowship (2001 – 2003)[8]

References

  1. 1 2 3 Brian, Vohnsen. "Brian Vohnsen Profile | University College Dublin". people.ucd.ie. Archived from the original on 1 November 2019. Retrieved 3 December 2021.
  2. ↑ "Advanced Optical Imaging People". www.ucd.ie. Archived from the original on 15 December 2016. Retrieved 3 December 2021.
  3. 1 2 3 4 5 Vohnsen, Brian; Thibos, Larry N.; Ginis, Harilaos (2013). "Visual and Physiological Optics". Ophthalmic and Physiological Optics. 33 (4): 391–393. doi:10.1111/opo.12078. ISSN 1475-1313. PMID 23786381. S2CID 1927304.
  4. ↑ "Brian Vohnsen, University College Dublin, Ireland". www.photonics.com. Retrieved 3 December 2021.
  5. 1 2 3 4 Hornback, Samantha. "Brian Vohnsen". Optica. Archived from the original on 3 December 2021. Retrieved 3 December 2021.
  6. ↑ Bozhevolnyi, Sergey I.; Vohnsen, Brian; Smolyaninov, Igor I.; Zayats, Anatoly V. (15 June 1995). "Direct observation of surface polariton localization caused by surface roughness". Optics Communications. 117 (5): 417–423. doi:10.1016/0030-4018(95)00170-D. ISSN 0030-4018.
  7. ↑ Sterligov, V. A.; Cheyssac, P.; Kofman, R.; Lysenko, S. I.; Lytvyn, P. M.; Vohnsen, B.; Bozhevolnyi, S. I.; Maradudin, A. A. (2002). "Near/Far-Field Investigations of the Interaction between Surface Waves and Nanoparticles". Physica Status Solidi B. 229 (3): 1283–1294. doi:10.1002/1521-3951(200202)229:3<1283::AID-PSSB1283>3.0.CO;2-O. ISSN 1521-3951.
  8. 1 2 Vohnsen, Brian; Iglesias, Ignacio; Artal, Pablo (1 May 2004). "Directional imaging of the retinal cone mosaic". Optics Letters. 29 (9): 968–970. doi:10.1364/OL.29.000968. ISSN 0146-9592. PMID 15143643.
  9. ↑ "MSc NanoBio Science - Programme Details". www.ucd.ie. Archived from the original on 3 December 2021. Retrieved 3 December 2021.
  10. 1 2 "UCD News -Leading International Researchers join UCD under the SFI Stokes Programme". www.ucd.ie. Retrieved 4 December 2021.
  11. ↑ Vohnsen, Brian (1 May 2014). "Directional sensitivity of the retina: A layered scattering model of outer-segment photoreceptor pigments". Biomedical Optics Express. 5 (5): 1569–1587. doi:10.1364/BOE.5.001569. ISSN 2156-7085. PMC 4026908. PMID 24877016. S2CID 31187841.
  12. ↑ Vohnsen, Brian (1 December 2021). "Geometrical scaling of the developing eye and photoreceptors and a possible relation to emmetropization and myopia". Vision Research. 189: 46–53. doi:10.1016/j.visres.2021.09.002. hdl:10197/13053. ISSN 0042-6989. PMID 34619411. S2CID 238263441.
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