Refractive indices of semiconductors from energy gaps
نویسندگان
چکیده
منابع مشابه
A study of energy gap, refractive index and electronic polarizability of ternary chalcopyrite semiconductors
A simple relation between the optical electronegativity, energy gap, refractive index and electronic polarizability is given for ternary chalcopyrite semiconductors. Energy gap has been evaluated from the optical electronegativity whereas refractive index and electronic polarizability values have been evaluated from the energy gap by proposing a linear relation between them. The calculated valu...
متن کاملEnergy gap–refractive index relations in semiconductors – An overview
An overview of the understanding of correlations between energy gap and refractive index of semiconductors is presented here. The atomic approach of Moss, the nearly free electron model of Penn, the oscillator concept of Wemple and the optical polarizability approach of Finkenrath are considered in this study. The Ravindra relation is discussed in the context of alternate approaches that have b...
متن کاملthe role of russia in transmission of energy from central asia and caucuses to european union
پس ازفروپاشی شوروی،رشد منابع نفت و گاز، آسیای میانه و قفقاز را در یک بازی ژئوپلتیکی انرژی قرار داده است. با در نظر گرفتن این منابع هیدروکربنی، این منطقه به یک میدانجنگ و رقابت تجاری برای بازی های ژئوپلتیکی قدرت های بزرگ جهانی تبدیل شده است. روسیه منطقه را به عنوان حیات خلوت خود تلقی نموده و علاقمند به حفظ حضورش می باشد تا همانند گذشته گاز طبیعی را به وسیله خط لوله مرکزی دریافت و به عنوان یک واس...
15 صفحه اولInfrared refractive indices of liquid crystals
The refractive indices of E7 liquid-crystal mixture were measured at six visible and two infrared sl=1.55 and 10.6 mmd wavelengths at different temperatures, using Abbe and wedged cell refractometer methods, respectively. The experimental data of the visible wavelengths fit the extended Cauchy equations well. Using the extended Cauchy equations, we can extrapolate the refractive indices of E7 t...
متن کاملOn the Refractive Indices of Certain Proteins:
The change in the refractive indices of salt solutions which results from the addition of 1 per cent of the “pseudoglobulins” of blood serum has been measured by Reiss.l His pseudoglobulins were prepared by fractional precipitation with ammoniun sulphate and purified by prolonged dialysis. Fraction I (Pseudoglobulin I) was precipitated at 32-36 per cent saturation with ammonium sulphate, fracti...
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: Optical Materials
سال: 2015
ISSN: 0925-3467
DOI: 10.1016/j.optmat.2015.04.026