Prevailing-frequency approximation of the coupling ray theory for electromagnetic waves or elastic S waves

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Simultaneous Use of Elastic and Electromagnetic Waves

A hybrid technique has been developed that uses both electromagnetic and elastic waves in a synergistic manner to detect buried land mines. The system consists of a moving electromagnetic radar and a stationary elastic-wave source. The source generates elastic waves in the earth. These waves interact with the buried mine and cause both the mine and the earth to be displaced. Because the mechani...

متن کامل

Transformation ray method: controlling high frequency elastic waves (L).

Elastic ray theory is a high frequency asymptotic approximation of solution of elastodynamic equation, and is widely used in seismology. In this paper, the form invariance under a general spatial mapping and high frequency wave control have been examined by transformation method. It is showed that with the constraint of major and minor symmetry of the transformed elastic tensor, the eikonal equ...

متن کامل

Vector diffraction theory for electromagnetic waves.

The scalar Huygens-Fresnel principle is reformulated to take into account the vector nature of light and its associated directed electric and magnetic fields. Based on Maxwell's equations, a vector Huygens secondary source is developed in terms of the fundamental radiating units of electromagnetism: the electric and magnetic dipoles. The formulation is in terms of the vector potential from whic...

متن کامل

Electromagnetic waves, gravitational coupling and duality analysis

E. M. C. Abreu, S. A. Diniz, C. Pinheiro and F. C. Khanna Departamento de F́ısica, Universidade Federal Rural do Rio de Janeiro BR 465-07, 23851-180, Seropédica, Rio de Janeiro, Brazil E-mail: [email protected] and [email protected] Centro de Ciências Exatas, Universidade Federal do Esṕırito Santo, Av. Fernando Ferrari s/n, Campus da Goiabeiras 29060-900 Vitória ES – Brazil E-mail: din...

متن کامل

Elastic metamaterials for tuning circular polarization of electromagnetic waves

Electromagnetic resonators are integrated with advanced elastic material to develop a new type of tunable metamaterial. An electromagnetic-elastic metamaterial able to switch on and off its electromagnetic chiral response is experimentally demonstrated. Such tunability is attained by harnessing the unique buckling properties of auxetic elastic materials (buckliballs) with embedded electromagnet...

متن کامل

ذخیره 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: Studia Geophysica et Geodaetica

سال: 2016

ISSN: 0039-3169,1573-1626

DOI: 10.1007/s11200-014-1070-4