Zobrazeno 1 - 10
of 45
pro vyhledávání: '"M. Kamil Abd-Rahman"'
Autor:
N. Iznie Razaki, M. Kamil Abd-Rahman
Publikováno v:
Journal of Luminescence. 196:442-448
Hybrid layer of Tm3+-doped SiO2-Al2O3 nanofiber/thin-film demonstrates broad spectral width with notable high emission intensity. This multilayer structure comprised of thin film sandwiched between two nanofiber-layers, and was prepared via sol gel d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::242f797478149831613ba2366151faba
https://doi.org/10.1016/j.jlumin.2018.01.003
https://doi.org/10.1016/j.jlumin.2018.01.003
Autor:
S.N.M. Halim, Mohamad Fariz Mohamad Taib, M. Kamil Abd-Rahman, Rohana Mat Nor, Abdel Baset Mohamed El Nabwi Abdel Hamid Ibrahim
Publikováno v:
Solid State Phenomena. 268:160-164
The aim of this study is to investigate the incorporation of Al2O3 in SiO2 glass with emphasis on reducing the phonon energy in the SiO2 matrix. Pure SiO2 glass has very high phonon energy of about 1100 cm-1, while Al2O3 has 780 cm-1. By incorporatin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8136f85fa1c4c0a43996b5911a7f565
https://doi.org/10.4028/www.scientific.net/ssp.268.160
https://doi.org/10.4028/www.scientific.net/ssp.268.160
Publikováno v:
Solid State Phenomena. 268:92-96
The structural, electronic, and optical properties of an amorphous SiO2 (a-SiO2) model is investigated by using first-principles calculation. Most research works used beta-cristobalite glass structure as a reference to amorphous silica structure. How
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f981f764686d9a8f92134173af8a65b7
https://doi.org/10.4028/www.scientific.net/ssp.268.92
https://doi.org/10.4028/www.scientific.net/ssp.268.92
Autor:
M. Kamil Abd-Rahman, S.N.M. Halim, Mohamad Fariz Mohamad Taib, Mohd Hanapiah M. Yusoff, Nurul Iznie Razaki, Rohana Mat Nor
Publikováno v:
Solid State Phenomena. 268:155-159
A model of undefected and defected amorphous SiO2 has been constructed from Rietveld Refinement to investigate the effect of defect structure to its properties. Atomic level study for both structure were carried out using plane-wave pseudo potential
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1a2fe39c05ef4570377a300da736e1e
https://doi.org/10.4028/www.scientific.net/ssp.268.155
https://doi.org/10.4028/www.scientific.net/ssp.268.155
Publikováno v:
Optics Communications. 400:136-143
A 1 × 2 optical polymer waveguide splitter of dynamic power tuning capability with low excess loss and high tuning resolution is presented. The device was developed based on angular misalignment technique of plastic optical fiber (POF) by allowing p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::293ab0b8f3e22f7af45c24bea9d20ee5
https://doi.org/10.1016/j.optcom.2017.05.014
https://doi.org/10.1016/j.optcom.2017.05.014
Publikováno v:
Materials Science Forum. 846:740-747
This paper presents an acousto-optics analysis on free space optical signals modulated by two distinguishable non-resonant acoustic waves. The acoustic waves were directed at two different directions and locations along a laser beam and created non-i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2703b300ecf2c31f855d0215878cbb66
https://doi.org/10.4028/www.scientific.net/msf.846.740
https://doi.org/10.4028/www.scientific.net/msf.846.740
Autor:
M. Kamil Abd-Rahman, Abdel Baset Mohamed El Nabwi Abdel Hamid Ibrahim, N. Syafiqah Mohamed-Kassim
Publikováno v:
Journal of Lightwave Technology. 34:1306-1312
A tunable power splitter based on the predefined end shape of polymer optical fiber (POF) is fabricated for an efficiently integrated optical device. We show that the reshaped end fiber from round to rectangle cross section greatly reduce the interst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f74e90df7d7adea42b978f65a88ba96
https://doi.org/10.1109/jlt.2016.2517198
https://doi.org/10.1109/jlt.2016.2517198
Autor:
Hichem Eleuch, Pankaj Kumar Choudhury, Abdel Baset Mohamed El Nabwi Abdel Hamid Ibrahim, M. Kamil Abd-Rahman
Publikováno v:
Optik. 207:164423
New forms of Fresnel reflection and transmission coefficients were derived in the case of oblique optical incidence at the interface of dielectric medium coated with thin partially-reflecting mirror. This essentially required the application of modif
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a667b6437dc02bc6373238f668afbee1
https://doi.org/10.1016/j.ijleo.2020.164423
https://doi.org/10.1016/j.ijleo.2020.164423
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 767:012055
Single-mode fibre has established the intensity-based surface profiling application with the notable results such as surface topography of ancient stones and three-dimensional rigid-body shapes. However, cost and experimental handling has been the mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed6d70cc0af65140c934e480bef1eee6
https://doi.org/10.1088/1757-899x/767/1/012055
https://doi.org/10.1088/1757-899x/767/1/012055
Publikováno v:
Advanced Materials Research. 1107:693-698
This paper presents the preparation of intensity-based plastic optical fiber (POF) sensor and its characteristics in the detection of ethanol concentration in water. Response of the sensor probes were analyzed for 0.02 to 1.00% v/v ethanol concentrat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57e4ead611e2511e071956ba556a34a9
https://doi.org/10.4028/www.scientific.net/amr.1107.693
https://doi.org/10.4028/www.scientific.net/amr.1107.693