التفاصيل البيبلوغرافية
| العنوان: |
Magneto-Optical Studies of Fe3O4-Based Nanomagnetic Fluid: Magneto-Optical Studies of Fe3O4: P. Tomar et al. |
| المؤلفون: |
Tomar, Punit, Kumar, Sarvendra, Chaudhary, Megha Gupta, Kumar, Jitendra, Jain, Komal, Pant, R. P. |
| المصدر: |
Journal of Electronic Materials; Jan2025, Vol. 54 Issue 1, p232-240, 9p |
| مصطلحات موضوعية: |
MAGNETIC fluids, MAGNETOOPTICAL devices, LIGHT filters, PROPERTIES of fluids, PHYSICAL sciences |
| مستخلص: |
This study investigates the effect of particle concentration on tuneable magneto-optical transmittance and optically induced refractive index coefficients in Fe3O4-based nanomagnetic fluid (NMF) at room temperature. A static magneto-optical experimental setup was devised to investigate the magneto-optical effects arising from variations in particle concentration and dipolar interactions, under varying magnetic fields. In this work, Fe3O4-based nanomagnetic fluid was synthesized using a chemical co-precipitation method. The structural, morphological, and magnetic properties of the fluid were investigated using sophisticated characterization techniques including x-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), and vibrating-sample magnetometry (VSM). Our investigation focused on the tunability of magneto-optical transmittance as a function of the varying magnetic field at different particle concentrations. Further, we observed variations in diffraction fringes in the nanomagnetic fluid, correlating with particle concentration, by passing a high-power laser through the diluted fluid system. Light–matter interaction in the presence of a varying magnetic field induces optical anisotropy in the fluid, whereas dipole–moment interaction and magnetic particle alignment in the presence of a magnetic field are the main supporting phenomenon of magneto-optical tunability in our experiment. Experimental modulation of the transmittance profile and field-induced refractive index coefficients in NMF, elucidated through fringe diffraction, has potential for applications such as tuneable magneto-optical devices, optical filters, and optical limiters. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |