Broadband solar distributed Bragg reflector design using numerical optimization
نویسندگان
چکیده
In this paper, we optimize the structure of multi-paired SiO2/TiO2 Bragg reflector to obtain broad-band and broad-angled high solar reflectivity in visible near-infrared frequencies. To control refractive index contrast BR pairs, porosity SiO2 (same across all layers) is also allowed change. We study trade-off between number pairs overall performance structure. As a result optimization, demonstrate that 15-pair can yield an average twice quarter-wavelength stack rule design for extraterrestrial irradiance.
منابع مشابه
ITO-Free Transparent Organic Solar Cell with Distributed Bragg Reflector for Solar Harvesting Windows
We demonstrated an ITO-free, highly transparent organic solar cell with the potential to be integrated into window panes for energy harvesting purposes. A transparent, conductive ZnO/Ag/ZnO multilayer electrode and a Ag:Ca thin film electrode were used in this transparent device as the bottom and top electrode, respectively. To further improve the transmittance of the solar cell, the thickness ...
متن کاملUltra-short distributed Bragg reflector fiber laser for sensing applications.
We present an ultra-short distributed Bragg reflector fiber laser written in Er/Yb co-doped fiber. The entire laser is only 8.4 mm in length. The lasing threshold is less than 1 mW. The optical signal-to-noise ratio of the laser output is better than 70 dB. The laser emits two orthogonal polarization modes and generates a beat signal with signal-to-noise ratio of approximately 70 dB and 3-dB li...
متن کاملDistributed-bragg-reflector Lasers Grown by Chemical Beam Epitaxy
KAWACHI, M. : ‘Silica-based planar lightwave circuit technologies’. hoc. 17th European Conf. on Optical Communication, 8th Int. Conf. on Integrated Optics and Optical Fibre Communication, September 1991, pp. 51-58 YALETTE, S., RENARD, S., D E W H., IADOT, 1. P., FOURNIE& A., PHILIPPE, P., GIDON, P., GROUILLET, A. M., and DESGRANGES, D.: ‘Si-based integrated optics technologies’, Solid State Tec...
متن کاملMelt-processed all-polymer distributed Bragg reflector laser.
We have assembled and studied melt-processed all-polymer lasers comprising distributed Bragg reflectors that were fabricated in large sheets using a co-extrusion process and define the cavities for dye-doped compression-molded polymer gain core sheets. Distributed Bragg reflector (DBR) resonators consisting of 128 alternating poly(styrene) (PS) and poly(methyl methacrylate) (PMMA) layers were p...
متن کاملS-band multiwavelength Brillouin/Raman distributed Bragg reflector fiber lasers.
A multiwavelength Brillouin/Raman distributed Bragg reflector fiber laser operating in the S-band region is proposed and demonstrated. The laser uses a 7.7 km long dispersion-shifted fiber with an effective mode area of 15 μm(2) as the Brillouin and Raman gain media simultaneously. Two 1420 nm laser diodes with a combined power of 372 mW are used as pump sources, while a fiber Bragg grating wit...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Solar Energy
سال: 2021
ISSN: ['0375-9865', '1471-1257', '0038-092X']
DOI: https://doi.org/10.1016/j.solener.2021.04.045