| Presentation | 2011-03-04 Reflection Characteristics of Broadband Mirrors Using a Subwavelength Grating Yuu WAKABAYASHI, Syunsuke KIMURA, Junji YAMAUCHI, Hisamatsu NAKANO, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Broadband mirrors using a subwavelength grating (SWG) are analyzed by the finite-difference time-domain method with the periodic boundary condition. First, we evaluate the wavelength characteristics of the SWG with one-dimensional periodicity. The broad reflection spectrum with a high reflectivity of more than 99 % can be obtained for the TM wave by making the SWG on a low index layer. Next, the broadband mirror using the SWG with two-dimensional periodicity is analyzed. The high reflectivity which is independent of polarization is achieved over a wavelength range of 1.47 to 1.69 μm using a square grating at normal incidence. In addition, we consider the case where a plane wave is obliquely incident. By changing the grating configuration from a square to a rectangular one, a high reflectivity of more than 99 % is obtained over a wavelength range of 1.48 to 1.64 μm for both the TE and TM waves. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Periodic structure / Subwavelength grating / Broadband mirror / Finite-difference time-domain method / Oblique incidence |
| Paper # | OFT2010-64,OPE2010-168 |
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| Conference Information | |
| Committee | OFT |
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| Conference Date | 2011/2/25(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Optical Fiber Technology (OFT) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Reflection Characteristics of Broadband Mirrors Using a Subwavelength Grating |
| Sub Title (in English) | |
| Keyword(1) | Periodic structure |
| Keyword(2) | Subwavelength grating |
| Keyword(3) | Broadband mirror |
| Keyword(4) | Finite-difference time-domain method |
| Keyword(5) | Oblique incidence |
| 1st Author's Name | Yuu WAKABAYASHI |
| 1st Author's Affiliation | Faculty of Engineering, Hosei University() |
| 2nd Author's Name | Syunsuke KIMURA |
| 2nd Author's Affiliation | Faculty of Engineering, Hosei University |
| 3rd Author's Name | Junji YAMAUCHI |
| 3rd Author's Affiliation | Faculty of Engineering, Hosei University |
| 4th Author's Name | Hisamatsu NAKANO |
| 4th Author's Affiliation | Faculty of Engineering, Hosei University |
| Date | 2011-03-04 |
| Paper # | OFT2010-64,OPE2010-168 |
| Volume (vol) | vol.110 |
| Number (no) | 436 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |