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Linear optical modeling on aluminum zig-zag thin films | ||
Journal of Interfaces, Thin Films, and Low dimensional systems | ||
دوره 5، شماره 2، اردیبهشت 2022، صفحه 493-503 اصل مقاله (1.51 M) | ||
نوع مقاله: Original Article | ||
شناسه دیجیتال (DOI): 10.22051/jitl.2023.41857.1074 | ||
نویسندگان | ||
Mahsa Fakharpour* 1؛ Maryam Gholizadeh Arashti2 | ||
1Department of Physics, Islamic Azad University, Maybod Branch, Maybod, Iran | ||
2Department of Physic, Faculty of Science, Yadegar-e-Imam Khomeini (RAH) Shahr-e- Rey Branch, Islamic Azad University, Tehran, Iran. | ||
چکیده | ||
The Al zig-zag sculptured thin film consists of two identical columns, the first nanocolumns (zig) are oriented at the angle χ, and the second nanocolumns (zag) are oriented at the angle (π- χ). The optical properties of these nanostructures were obtained using the transfer matrix method for linear s- and p- polarized incident lights in the wavelength range of 300-1000 nm. The reflection and transmission spectra of the zigzag nanostructures with different arm numbers and lengths were obtained at different incident angles. The Bragg peaks begin to appear for zig-zag nanostructures of more than 4 arms for s- polarized light at angles greater than 30. For zig-zag structures of 4, 8, and 16 arms, one, two, and three Bragg peaks were observed, respectively. However, for p- polarized light, no Bragg peak was observed at any of the incident angles. Also, for the zig-zag structure of 8 arms for s-polarized light at 60 incident angles, the number of Bragg peaks increases with increasing arm length. In addition, the peaks created in the wavelengths below 550 nm showed a red shift while the peaks that appeared in the wavelengths above 550 nm showed a blue shift. | ||
کلیدواژهها | ||
Reflectance؛ Transfer matrix؛ Zig-zag nanostructure؛ Linearly polarized light؛ Bragg phenomenon | ||
عنوان مقاله [English] | ||
مدل سازی اپتیک خطی روی لایه نازک زیگزاگ آلومینیم | ||
نویسندگان [English] | ||
مهسا فخارپور1؛ مریم قلیزاده ارشتی2 | ||
1گروه فیزیک، دانشگاه آزاد اسلامی، واحد میبد، میبد، ایران | ||
2گروه فیزیک، دانشکده علوم، دانشگاه آزاد اسلامی، واحد یادگار امام خمینی شهر ری، تهران، ایران | ||
چکیده [English] | ||
لایه نازک مجسمه سازی شده آلومینیم زیگ زاگ از دو ستون یکسان تشکیل شده است، نانوستون های اول (زیگ) در زاویه χ و نانوستون های دوم (زاگ) در زاویه (π-χ) جهت گیری شده اند. خواص نوری این نانوساختارها با استفاده از روش ماتریس انتقال برای نورهای تابشی پلاریزه خطی s و p در محدوده طول موج 300-1000 نانومتر به دست آمد. طیف بازتاب و انتقال نانوساختارهای زیگزاگ با تعداد بازوها و طولهای مختلف در زوایای تابش مختلف بهدست آمد. قله های براگ برای نانوساختارهای زیگ زاگ بیش تراز 4 بازو برای نور پلاریزه در زوایای بیشتر از 30 ظاهر می شوند. برای نانوساختارهای زیگزاگ 4، 8 و 16 بازو به ترتیب یک، دو و سه قله براگ مشاهده شد. با این حال، برای نور پلاریزه p هیچ قله براگی در هیچ یک از زوایای تابش مشاهده نشد. همچنین برای ساختار زیگزاگ 8 بازو برای نور پلاریزه s در زوایای تابش 60، تعداد قله های براگ با افزایش طول بازو افزایش می یابد. علاوه بر این، قله های ایجاد شده در طول موج های کمتر از 550 نانومتر جابه جایی قرمز و قله های به وجود آمده در طول موج های بیشتر از 550 نانومترجابه جایی آبی را نشان دادند. | ||
کلیدواژهها [English] | ||
بازتاب, ماتریس انتقال, نانوساختار زیگزاگی, نور پلاریزه خطی, پدیده براگ | ||
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