fa طراحی حسگر پوستی فشار مبتنی بر تشدید پلاسمون سطحی براساس تغییرات توری گرافنی عمومى General پژوهشي Research <div style="text-align: justify;"><span style="font-family:Tahoma;"><span style="font-size:14px;"><span style="line-height:2;"><span style="direction:rtl"><span style="unicode-bidi:embed"><b><span lang="AR-SA"><span style="color:#c00000">مقدمه:</span></span></b> <span lang="AR-SA"><span style="color:black">در</span></span> <span lang="AR-SA"><span style="color:black">این</span></span> <span lang="AR-SA"><span style="color:black">مقاله</span></span> <span lang="AR-SA"><span style="color:black">یک</span></span> <span lang="AR-SA"><span style="color:black">حسگر</span></span> <span lang="AR-SA"><span style="color:black">فشار،</span></span> <span lang="AR-SA"><span style="color:black">قابل</span></span> <span lang="AR-SA"><span style="color:black">نصب</span></span> <span lang="AR-SA"><span style="color:black">روی</span></span> <span lang="AR-SA"><span style="color:black">پوست</span></span> <span lang="AR-SA"><span style="color:black">بدن،</span></span> <span lang="AR-SA"><span style="color:black">بر</span></span><span lang="AR-SA"><span style="color:black">‌</span></span><span lang="AR-SA"><span style="color:black">اساس</span></span> <span lang="AR-SA"><span style="color:black">تشدیدگرهای</span></span> <span lang="AR-SA"><span style="color:black">پلاسمون</span></span> <span lang="AR-SA"><span style="color:black">سطحی</span></span> <span lang="AR-SA"><span style="color:black">(</span></span><span dir="LTR"><span style="color:black">SPR</span></span><span lang="AR-SA"><span style="color:black">)</span></span> <span lang="AR-SA"><span style="color:black">مبتنی</span></span> <span lang="AR-SA"><span style="color:black">بر</span></span> <span lang="AR-SA"><span style="color:black">گرافن</span></span> <span lang="AR-SA"><span style="color:black">ارائه</span></span> <span lang="AR-SA"><span style="color:black">شده</span></span> <span lang="AR-SA"><span style="color:black">است.</span></span> <span lang="AR-SA"><span style="color:black">در</span></span> <span lang="AR-SA"><span style="color:black">ساختار</span></span> <span lang="AR-SA"><span style="color:black">پیشنهادی</span></span> <span lang="AR-SA"><span style="color:black">لایه</span></span> <span lang="AR-SA"><span style="color:black">توری</span></span> <span lang="AR-SA"><span style="color:black">گرافنی،</span></span> <span lang="AR-SA"><span style="color:black">روی</span></span> <span lang="AR-SA"><span style="color:black">بستر</span></span> <span dir="LTR"><span style="color:black">SiO2</span></span><span lang="AR-SA"><span style="color:black">،</span></span> <span lang="AR-SA"><span style="color:black">باعث</span></span> <span lang="AR-SA"><span style="color:black">تحریک</span></span> <span lang="AR-SA"><span style="color:black">پلاسمون‌ها</span></span> <span lang="AR-SA"><span style="color:black">در</span></span> <span lang="AR-SA"><span style="color:black">یک</span></span> <span lang="AR-SA"><span style="color:black">طول</span></span> <span lang="AR-SA"><span style="color:black">موج</span></span> <span lang="AR-SA"><span style="color:black">خاص</span></span> <span lang="AR-SA"><span style="color:black">می‌شود</span></span> <span lang="AR-SA"><span style="color:black">که</span></span> <span lang="AR-SA"><span style="color:black">نتیجه‌</span></span> <span lang="AR-SA"><span style="color:black">تغییر</span></span> <span lang="AR-SA"><span style="color:black">در</span></span> <span lang="AR-SA"><span style="color:black">دوره</span></span> <span lang="AR-SA"><span style="color:black">تناوب</span></span> <span lang="AR-SA"><span style="color:black">توری</span></span> <span lang="AR-SA"><span style="color:black">به</span></span> <span lang="AR-SA"><span style="color:black">علت</span></span> <span lang="AR-SA"><span style="color:black">وجود</span></span> <span lang="AR-SA"><span style="color:black">فشار</span></span> <span lang="AR-SA"><span style="color:black">خاصی</span></span> <span lang="AR-SA"><span style="color:black">در</span></span> <span lang="AR-SA"><span style="color:black">بدن</span></span> <span lang="AR-SA"><span style="color:black">است.</span></span> <span lang="AR-SA"><span style="color:black">شبیه‌سازی‌ها</span></span> <span lang="AR-SA"><span style="color:black">در</span></span> <span lang="AR-SA"><span style="color:black">دو</span></span> <span lang="AR-SA"><span style="color:black">بخش</span></span> <span lang="AR-SA"><span style="color:black">مکانیکی،</span></span> <span lang="AR-SA"><span style="color:black">با</span></span> <span lang="AR-SA"><span style="color:black">روش</span></span> <span dir="LTR"><span style="color:black">FEM</span></span><span lang="AR-SA"><span style="color:black">،</span></span> <span lang="AR-SA"><span style="color:black">و</span></span> <span lang="AR-SA"><span style="color:black">پلاسمونیکی</span></span> <span lang="AR-SA"><span style="color:black">با</span></span> <span lang="AR-SA"><span style="color:black">روش</span></span> <span dir="LTR"><span style="color:black">FDTD</span></span><span lang="AR-SA"><span style="color:black">،</span></span> <span lang="AR-SA"><span style="color:black">انجام</span></span> <span lang="AR-SA"><span style="color:black">پذیرفته</span></span> <span lang="AR-SA"><span style="color:black">است.</span></span> <span lang="AR-SA"><span style="color:black">تغییرات</span></span> <span lang="AR-SA"><span style="color:black">فشار</span></span> <span lang="AR-SA"><span style="color:black">در</span></span> <span lang="AR-SA"><span style="color:black">بخش</span></span> <span lang="AR-SA"><span style="color:black">مکانیکی،</span></span> <span lang="AR-SA"><span style="color:black">در</span></span> <span lang="AR-SA"><span style="color:black">محدوده</span></span> <span lang="AR-SA"><span style="color:black">صفر</span></span> <span lang="AR-SA"><span style="color:black">تا</span></span> <span lang="AR-SA"><span style="color:black">300</span></span> <span lang="AR-SA"><span style="color:black">میلی‌متر</span></span> <span lang="AR-SA"><span style="color:black">جیوه</span></span> <span lang="AR-SA"><span style="color:black">بوده</span></span> <span lang="AR-SA"><span style="color:black">که</span></span> <span lang="AR-SA"><span style="color:black">در</span></span> <span lang="AR-SA"><span style="color:black">ادامه</span></span> <span lang="AR-SA"><span style="color:black">نیز</span></span> <span lang="AR-SA"><span style="color:black">طول</span></span> <span lang="AR-SA"><span style="color:black">موج</span></span> <span lang="AR-SA"><span style="color:black">متناسب</span></span> <span lang="AR-SA"><span style="color:black">با</span></span> <span lang="AR-SA"><span style="color:black">هر</span></span> <span lang="AR-SA"><span style="color:black">فشار</span></span> <span lang="AR-SA"><span style="color:black">تعیین</span></span> <span lang="AR-SA"><span style="color:black">شده</span></span> <span lang="AR-SA"><span style="color:black">است.</span></span> <span lang="AR-SA"><span style="color:black">به‌عبارت</span></span> <span lang="AR-SA"><span style="color:black">دیگر</span></span> <span lang="AR-SA"><span style="color:black">با</span></span> <span lang="AR-SA"><span style="color:black">برقرار</span></span> <span lang="AR-SA"><span style="color:black">ارتباط</span></span> <span lang="AR-SA"><span style="color:black">بین</span></span> <span lang="AR-SA"><span style="color:black">نتایج</span></span> <span lang="AR-SA"><span style="color:black">هر</span></span> <span lang="AR-SA"><span style="color:black">بخش،</span></span> <span lang="AR-SA"><span style="color:black">طول</span></span> <span lang="AR-SA"><span style="color:black">موج</span></span> <span lang="AR-SA"><span style="color:black">منحصر</span></span> <span lang="AR-SA"><span style="color:black">به</span></span> <span lang="AR-SA"><span style="color:black">فردی</span></span> <span lang="AR-SA"><span style="color:black">برای</span></span> <span lang="AR-SA"><span style="color:black">هر</span></span> <span lang="AR-SA"><span style="color:black">فشار</span></span> <span lang="AR-SA"><span style="color:black">مشخص</span></span> <span lang="AR-SA"><span style="color:black">شده</span></span> <span lang="AR-SA"><span style="color:black">است.</span></span> <span lang="AR-SA"><span style="color:black">پاسخ</span></span> <span lang="AR-SA"><span style="color:black">سریع،</span></span> <span lang="AR-SA"><span style="color:black">تکرارپذیری،</span></span> <span lang="AR-SA"><span style="color:black">قابلیت</span></span> <span lang="AR-SA"><span style="color:black">توسعه</span></span> <span lang="AR-SA"><span style="color:black">اندازه‌گیری</span></span> <span lang="AR-SA"><span style="color:black">پارامترها،</span></span> <span lang="AR-SA"><span style="color:black">وسیع</span></span> <span lang="AR-SA"><span style="color:black">بودن</span></span> <span lang="AR-SA"><span style="color:black">محدوده</span></span> <span lang="AR-SA"><span style="color:black">تغییرات</span></span> <span lang="AR-SA"><span style="color:black">فشار،</span></span> <span lang="AR-SA"><span style="color:black">از</span></span> <span lang="AR-SA"><span style="color:black">مزایای</span></span> <span lang="AR-SA"><span style="color:black">این</span></span> <span lang="AR-SA"><span style="color:black">حسگر</span></span> <span lang="AR-SA"><span style="color:black">هستند.</span></span> <span lang="FA"><span style="color:black"></span></span></span></span><br> <span style="direction:rtl"><span style="unicode-bidi:embed"><b><span lang="AR-SA"><span style="color:#c00000">روش بررسی:</span></span></b><span lang="AR-SA"><span style="color:black"> روش بررسی شبیه‌سازی عددی بوده که روش عددی</span></span><span dir="LTR"><span style="color:black"> FDTD </span></span><span lang="AR-SA"><span style="color:black">برای بخش پلاسمونیک و از روش</span></span><span dir="LTR"><span style="color:black">FEM</span></span><span lang="AR-SA"><span style="color:black">‌</span></span> <span lang="AR-SA"><span style="color:black">برای بخش مکانیکی استفاده شده است. از نرم‌افزارهای </span></span><span dir="LTR"><span style="color:black">&nbsp;Lumerical</span></span><span lang="AR-SA"><span style="color:black">و </span></span><span dir="LTR"><span style="color:black">MATLAB</span></span><span style="color:black"> برای محاسبات پلاسمونیکی (</span><span dir="LTR"><span style="color:black">FDTD</span></span><span lang="AR-SA"><span style="color:black">)</span></span> <span lang="AR-SA"><span style="color:black">و نرم‌افزار </span></span><span dir="LTR"><span style="color:black">Comsol</span></span><span lang="AR-SA"><span style="color:black"> برای محاسبات فشار (</span></span><span dir="LTR"><span style="color:black">FEM</span></span><span lang="AR-SA"><span style="color:black">) استفاده شده است. نتایج مربوطه، اعم از پاسخ‌‌های طیفی، انعکاس، بازتاب و جذب با کد نویسی محاسبه و مورد بررسی قرار گرفته‌اند.</span></span></span></span><br> <span style="direction:rtl"><span style="unicode-bidi:embed"><b><span lang="AR-SA"><span style="color:#c00000">یافته‌ها:</span></span></b><span lang="AR-SA"><span style="color:black"> در محدوده فشار بدن روی تغییرات بالاتر و پایین‌تر از حد طبیعی (</span></span><span dir="LTR"><span style="color:black">mmHg</span></span><span lang="AR-SA"><span style="color:black"> 120) جابجایی طول موج تشدید به‌خوبی مشاهده شده است. این تغییرات برای محدوده طول موجی 9500-700 نانومتر اتفاق می‌افتد که نتایج به‌دست‌آمده بخوبی این موارد را نشان می‌دهد. با اعمال مشخصات لایه‌ها، میزان تغییرات از نظر ساختار مکانیک برای محدوده مورد نظر محاسبه شده است. جابجایی مد نظر در مقیاس نانو است که با ایجاد ارتباط میان نتایج ساختار مکانیکی و پلاسمونیکی، طول موج تشدید مختص هر فشار محاسبه شده است. </span></span></span></span><br> <span style="direction:rtl"><span style="unicode-bidi:embed"><b><span lang="AR-SA"><span style="color:#c00000">نتیجه‌گیری:</span></span></b><span lang="AR-SA"><span style="color:black">استفاده از حسگرهای پلاسمونیکی فشار بر اساس سازوکار </span></span><span dir="LTR"><span style="color:black">SPR</span></span><span lang="AR-SA"><span style="color:black">، حساسیت و انتخاب‌کنند‌گی بالایی برای تشخیص فشار ارایه می‌کنند. سهولت در استفاده، سادگی ساختار، برنامه‌پذیر‌بودن و قابلیت اندازه‌گیری دیگر پارامترها از خصوصیات بارز ستفاده از این حسگر است. قرار گرفتن این حسگر بر روی شریان بدن قابلیت کنترل فشار را فراهم می‌کند، که برای بیمارانی که از نظر فشار تحت مراقبت هستند بسیار کاربردی و مفید است.</span></span></span></span><br> &nbsp;</span></span></span></div> <div style="text-align: justify;"><span style="font-size:11pt"><span style="line-height:115%"><span style="font-family:Calibri,sans-serif"><span style="font-size:12.0pt"><span style="line-height:115%"><span new="" roman="" style="font-family:" times="">In this paper, we present a skin-pressure sensor with graphene based on Surface Plasmon Resonators (SPR) mechanism. The result of applying body pressure is a change in the period grating. The SPR excite in a specific wavelength with placing graphene on the SiO2 substrate. The simulations have been done in two parts, mechanical (by FEM method) and plasmonic (by FDTD method). Pressure changes in the mechanical part are in the range of 0 to 300mmHg and the wavelength is determined according to each pressure. In other words, a unique wavelength has been determined for each pressure by connecting the results of each section. Fast responses, repeatability, ability to develop parameters measurement and wide range of pressure are among the advantages of this sensor.</span></span></span></span></span></span></div> حسگر فشار پوستی, تشدید پلاسمون سطحی, انعکاس خروجی, حساسیت, توری گرافنی. 17 23 http://icml.ir/browse.php?a_code=A-10-151-154&slc_lang=fa&sid=1 Morteza Mansuri مرتضی منصوری mansouri.mo@fe.lu.ac.ir 1050031947532846003329 1050031947532846003329 Yes Optical research center, Department of Electrical Engineering, Lorestan University, Khoram-Abad, IRAN گروه برق- الکترونیک، دانشکده فنی و مهندسی، دانشگاه لرستان Ali mir علی میر 1050031947532846003330 1050031947532846003330 No Optical research center, Department of Electrical Engineering, Lorestan University, Khoram-Abad, IRAN گروه برق- الکترونیک، دانشکده فنی و مهندسی، دانشگاه لرستان Ali farmani علی فرمانی 1050031947532846003331 1050031947532846003331 No Optical research center, Department of Electrical Engineering, Lorestan University, Khoram-Abad, IRAN گروه برق- الکترونیک، دانشکده فنی و مهندسی، دانشگاه لرستان