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== Research == |
== Research == |
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Knight is interested in the behaviour of light in microstructured materials, and in the physics of optical fibres.<ref name=googlescholar>{{Google scholar id | YDjo1I8AAAAJ | Jonathan Knight}}</ref> Working with Russell and Tim Birks, he designed, fabricated and demonstrated a number of novel forms of optical fibre waveguide with previously unobtainable characteristics.<ref>{{cite web|title=Physics professors receive Rank Prize for optical fibre discoveries|url=https://www.myscience.org.uk/wire/physics_professors_receive_rank_prize_for_optical_fibre_discoveries-2018-Bath/|website=15 February 2018|publisher=My Science}}</ref><ref>{{cite web|first1=Gache|last1=Gabriel|title=Newly Designed Optical Fiber Is Hollow|url=https://news.softpedia.com/news/Newly-Designed-Optical-Fiber-is-Hallow-76654.shtml/|website=18 January 2008|publisher=Softpedia}}</ref> This work has led to a range of outcomes including the commercialisation<ref>{{cite web|last1=Sabert|first1=Hendrik|last2=Knight|first2=Jonathan|title=Hollow-Core Fibers Seek the 'Holey' Grail|url=https://www.photonics.com/Articles/Hollow-Core_Fibers_Seek_the_Holey_Grail/a16628/|website=August 2003|publisher=[[Photonics Spectra]]}}</ref> of a new form of light source ([[supercontinuum]]), high power short pulse laser delivery through fibre, and applications in quantum and atomic physics.<ref>{{cite web|last1=Wadsworth|first1=William |last2=Knight|first2=Jonathan|last3=Birks|first3=Tim|title=State-of-the-Art Photonic Crystal Fiber|url=https://www.osa-opn.org/home/articles/volume_23/issue_3/features/of-the-art_photonic_crystal_fiber/|website=1 March 2012|publisher=[[Optics and Photonics News]]}}</ref> Belardi and Knight proposed the hollow-core "nested-ring" design for photonic fibres, at the beginning of 2014.<ref>{{cite web|last1=Wallace|first1=John|title=Hollow-core antiresonant optical fibers: Part II|url=https://www.laserfocusworld.com/articles/2014/10/hollow-core-antiresonant-optical-fibers-part-ii.html/|website=05 March 2019|publisher=[[Laser Focus World]]}}</ref> Together with William Wadsworth, Knight co-created a new kind of laser capable of pulsed and continuous mid-infrared (IR) emission between 3.1 and 3.2 microns, a spectral range that has long presented a major challenge for laser developers.<ref>{{cite web|title=New laser achieves wavelength long sought by laser developers|url=https://phys.org/news/2016-02-laser-wavelength-sought.html/|website=05 March 2019|publisher=Phys.Org}}</ref> |
Knight is interested in the behaviour of light in microstructured materials, and in the physics of optical fibres.<ref name=googlescholar>{{Google scholar id | YDjo1I8AAAAJ | Jonathan Knight}}</ref> Working with Russell and Tim Birks, he designed, fabricated and demonstrated a number of novel forms of optical fibre waveguide with previously unobtainable characteristics.<ref>{{cite web|title=Physics professors receive Rank Prize for optical fibre discoveries|url=https://www.myscience.org.uk/wire/physics_professors_receive_rank_prize_for_optical_fibre_discoveries-2018-Bath/|website=15 February 2018|publisher=My Science}}</ref><ref>{{cite web|first1=Gache|last1=Gabriel|title=Newly Designed Optical Fiber Is Hollow|url=https://news.softpedia.com/news/Newly-Designed-Optical-Fiber-is-Hallow-76654.shtml/|website=18 January 2008|publisher=Softpedia}}</ref> This work has led to a range of outcomes including the commercialisation<ref>{{cite web|last1=Sabert|first1=Hendrik|last2=Knight|first2=Jonathan|title=Hollow-Core Fibers Seek the 'Holey' Grail|url=https://www.photonics.com/Articles/Hollow-Core_Fibers_Seek_the_Holey_Grail/a16628/|website=August 2003|publisher=[[Photonics Spectra]]}}</ref><sup>,</sup><ref>{{cite web|last1=Lloyd|first1=Hywel|title=8m deal as city firm sells assets to rival|website=10 August 2004|publisher=[[Bath Chronicle]]}}</ref> of a new form of light source ([[supercontinuum]]), high power short pulse laser delivery through fibre, and applications in quantum and atomic physics.<ref>{{cite web|last1=Wadsworth|first1=William |last2=Knight|first2=Jonathan|last3=Birks|first3=Tim|title=State-of-the-Art Photonic Crystal Fiber|url=https://www.osa-opn.org/home/articles/volume_23/issue_3/features/of-the-art_photonic_crystal_fiber/|website=1 March 2012|publisher=[[Optics and Photonics News]]}}</ref> Belardi and Knight proposed the hollow-core "nested-ring" design for photonic fibres, at the beginning of 2014.<ref>{{cite web|last1=Wallace|first1=John|title=Hollow-core antiresonant optical fibers: Part II|url=https://www.laserfocusworld.com/articles/2014/10/hollow-core-antiresonant-optical-fibers-part-ii.html/|website=05 March 2019|publisher=[[Laser Focus World]]}}</ref> Together with William Wadsworth, Knight co-created a new kind of laser capable of pulsed and continuous mid-infrared (IR) emission between 3.1 and 3.2 microns, a spectral range that has long presented a major challenge for laser developers.<ref>{{cite web|title=New laser achieves wavelength long sought by laser developers|url=https://phys.org/news/2016-02-laser-wavelength-sought.html/|website=05 March 2019|publisher=Phys.Org}}</ref> |
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==Awards and recognition== |
==Awards and recognition== |
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Revision as of 10:52, 7 March 2019
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Jonathan Cave Knight | |
|---|---|
| Born | 17 June 1964 |
| Nationality | United Kingdom |
| Citizenship | United Kingdom |
| Alma mater | University of Cape Town |
| Known for | Photonic-crystal fiber Optical Fibers |
| Scientific career | |
| Fields | Physics, Photonics |
| Institutions | University of Bath |
| Thesis | Whispering gallery mode microlaser in a capillary fibre (1993) |
| Doctoral advisor | G N Robertson, H S T Driver |
Jonathan C. Knight (born 1964, in Lusaka) is a British physicist. He is the Pro Vice-Chancellor (Research) for the University of Bath[1] where he has been Professor in the Department of Physics since 2000, and served as Head of Department.[2] From 2005 to 2008, he was founding Director of the University’s Centre for Photonics and Photonic Materials.
Education
Knight studied at the University of Cape Town where he obtained his B.Sc (Hons), M.Sc. and PhD. His doctoral thesis was on whispering gallery mode microlasers. He did postdoctoral research at the École Normale Supérieure (Paris, 1994–1995) and at the Optoelectronics Research Centre (University of Southampton, 1995–1996).
Research
Knight is interested in the behaviour of light in microstructured materials, and in the physics of optical fibres.[3] Working with Russell and Tim Birks, he designed, fabricated and demonstrated a number of novel forms of optical fibre waveguide with previously unobtainable characteristics.[4][5] This work has led to a range of outcomes including the commercialisation[6],[7] of a new form of light source (supercontinuum), high power short pulse laser delivery through fibre, and applications in quantum and atomic physics.[8] Belardi and Knight proposed the hollow-core "nested-ring" design for photonic fibres, at the beginning of 2014.[9] Together with William Wadsworth, Knight co-created a new kind of laser capable of pulsed and continuous mid-infrared (IR) emission between 3.1 and 3.2 microns, a spectral range that has long presented a major challenge for laser developers.[10]
Awards and recognition
- Rank Prize Funds Optoelectronics Prize, 2018, "For the invention and realisation of photonic crystal fibres." Physics Professors Tim Birks and Jonathan Knight have received The Rank Prize for Optoelectonics 2018 for their work on photonic crystal fibres. The pair were reunited with former colleague Professor Philip Russell, who now works in Germany, at an awards ceremony in London on Monday 12 February where each received a £30,000 prize for their ground-breaking work.
- Institute of Physics Optics and Photonics Division Prize, 2012
- Fellow of Optical Society of America, 2011, For pioneering development of the photonic crystal fiber and particularly its application in nonlinear frequency conversion and supercontinuum generation.
- Leverhulme Trust Research Fellowship, 2005/2006
Selected publications
- Yu, F.; Wadsworth, W.J.; Knight, J.C. (2012). "Low loss silica hollow-core fibers for 3-4 μm spectral region". Optics Express. 20 (10): 11153–8. doi:10.1364/OE.20.011153. PMID 22565738.
- Stone, J. M.; Knight, J. C. (2008). "Visibly "white" light generation in uniform photonic crystal fiber using a microchip laser". Optics Express. 16 (4): 2670–2675. doi:10.1364/OE.16.002670.
- Knight, J. C. (2003). "Photonic crystal fibres". Nature. 424 (6950): 847–851. doi:10.1038/nature01940. PMID 12917699.
- Knight, J. C.; Russel, P. St. J. (2002). "New ways to guide light". Science. 296 (5566): 276–277. doi:10.1126/science.1070033. PMID 11951025.
- Knight, J. C.; Broeng, J.; Birks, T. A.; Russell, P. St.J. (1998). "Photonic band gap guidance in optical fibers". Science. 282 (5393): 1476–1478. doi:10.1126/science.282.5393.1476.
- Knight, J. C.; Cheung, G.; Jacques, F.; Birks, T. A. (1997). "Phase-matched excitation of whispering-gallery-mode resonances by a fiber taper". Optics Letters. 22 (15): 1129–1131. doi:10.1364/OL.22.001129.
- Knight, J. C.; Birks, T. A.; Russell, P. St. J.; Atkin, D. M. (1996). "All-silica single-mode optical fiber with photonic crystal cladding". Optics Letters. 21 (19): 1547–9. doi:10.1364/OL.21.001547. PMID 19881720.
References
- ^ Knight, Jonathan. "Leadership profile". 24 September 2018. University of Bath.
- ^ Harris, Margaret. "Top UK physics departments tumble in new assessment". 18 December 2008. Physics World.
- ^ Jonathan Knight publications indexed by Google Scholar
- ^ "Physics professors receive Rank Prize for optical fibre discoveries". 15 February 2018. My Science.
- ^ Gabriel, Gache. "Newly Designed Optical Fiber Is Hollow". 18 January 2008. Softpedia.
- ^ Sabert, Hendrik; Knight, Jonathan. "Hollow-Core Fibers Seek the 'Holey' Grail". August 2003. Photonics Spectra.
- ^ Lloyd, Hywel. "8m deal as city firm sells assets to rival". 10 August 2004. Bath Chronicle.
{{cite web}}: Missing or empty|url=(help) - ^ Wadsworth, William; Knight, Jonathan; Birks, Tim. "State-of-the-Art Photonic Crystal Fiber". 1 March 2012. Optics and Photonics News.
- ^ Wallace, John. "Hollow-core antiresonant optical fibers: Part II". 05 March 2019. Laser Focus World.
- ^ "New laser achieves wavelength long sought by laser developers". 05 March 2019. Phys.Org.
External links
- Physics at the Univeristy of Bath
- Prof Knight profile at University of Bath.
- Visit to Shanghai Institute of Optics and Fine Mechanics
- Why do we need new types of optical fibres?, in Physics World.
- Professor Jonathan Knight on the Special Topic of Photonic Crystals.
