Line defects and temperature effects in liquid crystal tunable planar Bragg gratings
Liquid crystal tunable planar Bragg Gratings produced by Direct UV Writing are capable of wavelength tuning of over 100GHz. However, such devices exhibit non-linear tuning curves with threshold points and hysteresis. We show that these effects are due to the formation of disclination structures in t...
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| Format: | Article |
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2007
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| author | Snow, B.D. Adikan, Faisal Rafiq Mahamd Gates, J.C. Gawith, C.B.E. Dyadyusha, A. Kaczmarek, M. Smith, P.G.R. |
| author_facet | Snow, B.D. Adikan, Faisal Rafiq Mahamd Gates, J.C. Gawith, C.B.E. Dyadyusha, A. Kaczmarek, M. Smith, P.G.R. |
| author_sort | Snow, B.D. |
| collection | UM |
| description | Liquid crystal tunable planar Bragg Gratings produced by Direct UV Writing are capable of wavelength tuning of over 100GHz. However, such devices exhibit non-linear tuning curves with threshold points and hysteresis. We show that these effects are due to the formation of disclination structures in the liquid crystal and discuss the role of electrode defects and sample temperature on wavelength tuning. (C) 2007 Optical Society of America. |
| first_indexed | 2024-03-06T05:12:38Z |
| format | Article |
| id | um.eprints-4681 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:12:38Z |
| publishDate | 2007 |
| record_format | dspace |
| spelling | um.eprints-46812018-10-11T01:29:16Z http://eprints.um.edu.my/4681/ Line defects and temperature effects in liquid crystal tunable planar Bragg gratings Snow, B.D. Adikan, Faisal Rafiq Mahamd Gates, J.C. Gawith, C.B.E. Dyadyusha, A. Kaczmarek, M. Smith, P.G.R. TK Electrical engineering. Electronics Nuclear engineering Liquid crystal tunable planar Bragg Gratings produced by Direct UV Writing are capable of wavelength tuning of over 100GHz. However, such devices exhibit non-linear tuning curves with threshold points and hysteresis. We show that these effects are due to the formation of disclination structures in the liquid crystal and discuss the role of electrode defects and sample temperature on wavelength tuning. (C) 2007 Optical Society of America. 2007 Article PeerReviewed Snow, B.D. and Adikan, Faisal Rafiq Mahamd and Gates, J.C. and Gawith, C.B.E. and Dyadyusha, A. and Kaczmarek, M. and Smith, P.G.R. (2007) Line defects and temperature effects in liquid crystal tunable planar Bragg gratings. Optics Express, 15 (25). pp. 17129-17135. ISSN 1094-4087, |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering Snow, B.D. Adikan, Faisal Rafiq Mahamd Gates, J.C. Gawith, C.B.E. Dyadyusha, A. Kaczmarek, M. Smith, P.G.R. Line defects and temperature effects in liquid crystal tunable planar Bragg gratings |
| title | Line defects and temperature effects in liquid crystal tunable planar Bragg gratings |
| title_full | Line defects and temperature effects in liquid crystal tunable planar Bragg gratings |
| title_fullStr | Line defects and temperature effects in liquid crystal tunable planar Bragg gratings |
| title_full_unstemmed | Line defects and temperature effects in liquid crystal tunable planar Bragg gratings |
| title_short | Line defects and temperature effects in liquid crystal tunable planar Bragg gratings |
| title_sort | line defects and temperature effects in liquid crystal tunable planar bragg gratings |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
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