The Investigation of the Waveguiding Properties of Silk Fibroin from the Visible to Near-Infrared Spectrum
Silk fibroin protein has been reinvented as a new optical material for biophotonic applications because of its optical transparency, biocompatibility, and easy fabrication process. It is used in various silk-based optical devices, which makes it desirable to investigate the optical properties of sil...
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| Format: | Article |
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MDPI AG
2018-01-01
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| Series: | Materials |
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| Online Access: | http://www.mdpi.com/1996-1944/11/1/112 |
| _version_ | 1811306772556677120 |
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| author | Vaclav Prajzler Kyungtaek Min Sunghwan Kim Pavla Nekvindova |
| author_facet | Vaclav Prajzler Kyungtaek Min Sunghwan Kim Pavla Nekvindova |
| author_sort | Vaclav Prajzler |
| collection | DOAJ |
| description | Silk fibroin protein has been reinvented as a new optical material for biophotonic applications because of its optical transparency, biocompatibility, and easy fabrication process. It is used in various silk-based optical devices, which makes it desirable to investigate the optical properties of silk from diverse perspectives. This paper presents our investigation of the optical properties of silk fibroin, extracted from Bombyx mori cocoons. We have measured transmission spectra from the visible to near-infrared region and investigated waveguiding properties by the prism-coupling technique for five wavelengths (473.0, 632.8, 964.0, 1311, and 1552 nm). From the measurements, we determined the values of refractive indices. The measurements also proved waveguiding properties for all of the wavelengths. Optical scattering losses were measured by the fiber probe technique at 632.8 nm and were estimated to be 0.22 dB·cm−1. |
| first_indexed | 2024-04-13T08:51:34Z |
| format | Article |
| id | doaj.art-e405a9fad77542febdb6f23a4a76cf4e |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-04-13T08:51:34Z |
| publishDate | 2018-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-e405a9fad77542febdb6f23a4a76cf4e2022-12-22T02:53:29ZengMDPI AGMaterials1996-19442018-01-0111111210.3390/ma11010112ma11010112The Investigation of the Waveguiding Properties of Silk Fibroin from the Visible to Near-Infrared SpectrumVaclav Prajzler0Kyungtaek Min1Sunghwan Kim2Pavla Nekvindova3Department of Microelectronics, Faculty of Electrical Engineering, Czech Technical University, Technicka 2, 168 27 Prague, Czech RepublicDepartment of Energy Systems Research, Ajou University, Suwon 16499, KoreaDepartment of Energy Systems Research, Ajou University, Suwon 16499, KoreaDepartment of Inorganic Chemistry, Faculty of Chemical Technology, Institute of Chemical Technology, Technicka 5, 166 28 Prague, Czech RepublicSilk fibroin protein has been reinvented as a new optical material for biophotonic applications because of its optical transparency, biocompatibility, and easy fabrication process. It is used in various silk-based optical devices, which makes it desirable to investigate the optical properties of silk from diverse perspectives. This paper presents our investigation of the optical properties of silk fibroin, extracted from Bombyx mori cocoons. We have measured transmission spectra from the visible to near-infrared region and investigated waveguiding properties by the prism-coupling technique for five wavelengths (473.0, 632.8, 964.0, 1311, and 1552 nm). From the measurements, we determined the values of refractive indices. The measurements also proved waveguiding properties for all of the wavelengths. Optical scattering losses were measured by the fiber probe technique at 632.8 nm and were estimated to be 0.22 dB·cm−1.http://www.mdpi.com/1996-1944/11/1/112silk fibroinoptical planar waveguidesoptical losses |
| spellingShingle | Vaclav Prajzler Kyungtaek Min Sunghwan Kim Pavla Nekvindova The Investigation of the Waveguiding Properties of Silk Fibroin from the Visible to Near-Infrared Spectrum Materials silk fibroin optical planar waveguides optical losses |
| title | The Investigation of the Waveguiding Properties of Silk Fibroin from the Visible to Near-Infrared Spectrum |
| title_full | The Investigation of the Waveguiding Properties of Silk Fibroin from the Visible to Near-Infrared Spectrum |
| title_fullStr | The Investigation of the Waveguiding Properties of Silk Fibroin from the Visible to Near-Infrared Spectrum |
| title_full_unstemmed | The Investigation of the Waveguiding Properties of Silk Fibroin from the Visible to Near-Infrared Spectrum |
| title_short | The Investigation of the Waveguiding Properties of Silk Fibroin from the Visible to Near-Infrared Spectrum |
| title_sort | investigation of the waveguiding properties of silk fibroin from the visible to near infrared spectrum |
| topic | silk fibroin optical planar waveguides optical losses |
| url | http://www.mdpi.com/1996-1944/11/1/112 |
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