IJSTR

International Journal of Scientific & Technology Research

IJSTR@Facebook IJSTR@Twitter IJSTR@Linkedin
Home About Us Scope Editorial Board Blog/Latest News Contact Us
CALL FOR PAPERS
AUTHORS
DOWNLOADS
CONTACT
QR CODE
IJSTR-QR Code

IJSTR >> Volume 4 - Issue 4, April 2015 Edition



International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616



Modification Of Normal Microscope To Magneto-Optical Microscope

[Full Text]

 

AUTHOR(S)

Nurazlin Ahmad, Azuraida Amat, Wan Yusmawati Wan Yusoff, Nurshahidah Osman, Noor Baayah Ibrahim

 

KEYWORDS

Index Terms: Magnetic domain, ferromagnetic garnet, HeNe laser.

 

ABSTRACT

Abstract: The present work reports on the modification of polarizing microscope to a magnetic domain imaging microscope based on Faraday Effect. Sample used in this research is a ferromagnetic garnet; (Bi,Tm,Na)3(Fe,Ga)5O12. The halogen lamp in the microscope is replaced by helium-neon (HeNe) laser as a light source. To reduce the laser spatial coherent effect, thin transparent plastics placed in the laser path. The plastics are rotated at certain velocity. Other factors to be considered are the plastic rotation velocity, the laser intensity and the laser alignment. Typical magnetic domain pattern is obtained with the new system.

 

REFERENCES

[1] H. Lee, T. Kim, , S. Kim, Y. Yoon, S. Kim, A. Babajanyan, & K. Lee, "Magneto-Optical Imaging Using a Garnet Indicator Film Prepared on Glass Substrates," J. Magn. Magn. Mater., vol. 322, no. 18, pp. 2722-2727, Sept. 2010.

[2] A. Hubert, & R. Schäfer, Magnetic Domains: The Analysis of Magnetic Microstructures, Springer, Berlin, pp. 11-95, 1998.

[3] B. Andlauer, J. Schneider, & W. Wettling, "Optical and magneto-optical properties of YIG and FeBO3," Appl. Phys., vol. 10, no. 3, pp. 189-201, March 1976.

[4] T. Aichele, A. Lorenz, R. Hergt, & P. Görnert, "Garnet Layers Prepared by Liquid Phase Epitaxy for Microwave and Magneto‐Optical Applications–A Review," Crystal Research and Technology, vol. 38, no. 7‐8, pp. 575-587, 2003.

[5] T. Ishibashi, T. Kosaka, M. Naganuma, & T. Nomura, "Magneto-Optical Properties of Bi-Substituted Yttrium Iron Garnet Films by Metal-Organic Decomposition Method," J. Phys. Conference Series, vol. 200, no. 11, pp. 112002, IOP Publishing, 2010.

[6] J. Pigošová, A. Cigáň, & J. Maňka, "Thermal Synthesis of Bismuth-Doped Yttrium Iron Garnet for Magneto-Optical Imaging," Measurement Science Review, vol. 8, no. 5, pp. 126-128, Oct. 2008.

[7] D. C. Jiles, Introduction to Magnetism and Magnetic Materials, 2nd edn. Chapter 6, CRC Press, June 1998.

[8] R. C. Sherwood, J. P. Remeika, & H. J. Williams, "Domain Behavior in Some Transparent Magnetic Oxides," J. Appl. Phys., vol. 30, no. 2, pp. 217-225, 1959.

[9] I. M. Levitt, "Transparent Magnetic Oxides," J. Franklin Inst., vol. 265, no. 2, pp. 144, 1958.

[10] K. Murakawa, Y. Kawata, & S. Kawata, "Microscope System For Observing Magnetic Domain With Laser Light as a Probe," Laser Technol., vol. 26, no. 6, pp. 423, 1994.

[11] A. Jain, J. Kumar, F. Zhou, L. Li, & S. Tripathy, "A Simple Experiment For Determining Verdet Constants Using Alternating Current Magnetic Fields," Am. J. Phys., vol. 67, no. 8, pp. 714-717, 1999.

[12] J. F. Dillon, "Origin and uses of the Faraday rotation in magnetic crystals," J. Appl. Phys., vol. 39, no. 2, pp. 922-929, 1968.

[13] K. Padmaraju, "Faraday Rotation," unpublished.

[14] A. Brandow, A. Geiler, P. Head, R. Loura, H. Marvin, M. Zartarian, "Magneto-optical Kerr Effect Microscope," Northeastern University Electrical and Computer Engineering Department, available at http://www.ece.neu.edu/fac-ece/dimarzio/capstone/samples/Final%20Capstone%20Report.pdf

[15] J. F. Dillon, "Magnetic and Optical Properties of Rare Earth Garnets," J. Magn. Magn. Mater., vol. 84, no. 3, pp. 213-221, 1990.

[16] J. F. Dillon Jr, "Observation of Domains in The Ferrimagnetic Garnets by Transmitted Light," J. Appl. Phys., vol. 29, no. 9, pp. 1286-1291, 1958.

[17] J. F. Dillon, "Optical Absorptions and Rotations in The Ferrimagnetic Garnets," J. Phys. Radium, vol. 20, no. 2-3, pp. 374-377, 1959.

[18] R. M. Bozorth, "Advances in The Theory of Ferromagnetism," Electr Eng., vol. 68, no. 6, pp. 471-476, 1949.