BERKALA FISIKA
2015: Berkala Fisika Vol. 18 No. 3 Tahun 2015

STUDY OF ELECTROOPTICS BEHAVIOUR OF NAPHTHALENE AND ANTHRACENE


Firdausi, K Sofjan ( Jurusan Fisika, Universitas Diponegoro, Semarang ) , Khumaeni, Ali ( Jurusan Fisika, Universitas Diponegoro, Semarang ) , Richardina, Very ( Jurusan Fisika, Universitas Diponegoro, Semarang ) , Arianto, Fajar ( Jurusan Fisika, Universitas Diponegoro, Semarang ) , Budi, Wahyu Setia ( Jurusan Fisika, Universitas Diponegoro, Semarang )



Article Info

Publish Date
21 Apr 2016

Abstract

In this paper, we demonstrate electro-optics behaviour of naphthalene and anthracene using change of polarization of sample induced by external electric field. The source of light for polarization was 1 mW-he-ne Laser 633 nm. The induced external Electric field was produced by high DC voltage 0 – 7 kV. The samples were diluted in solutions-form using wash-benzene. The result shows that anthracene has higher polarizability than naphthalene, which is indicated by higher change of polarization in anthracene than naphthalene. The Assumption that potential difference is proportional to the distance between molecules is shown qualitatively by graphs of Van der Waals potential energy or force between molecules. In this case, anthracene has higher level Energy than naphthalene so that it can be used in visible excitation for environmental spectroscopy. Keywords: electro-optics, polarization, naphthalene, anthracene, Van der Waals potential energy 


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Journal Info

Abbrev

berkala_fisika

Publisher

Subject

Physics

Description

BERKALA FISIKA adalah jurnal saintifik yang diterbitkan secara periodik 3 bulanan. Jurnal ini memuat kajian-kajian Fisika baik kajian teoretik maupun hasil eksperimen. Jurnal ini juga memberi ruang yang luas bagi kajian – kajian aplikasi fisika dalam bidang teknologi, ilmu-ilmu hayati dan ...