Search query: Modern Magnetooptics and Magnetooptical Materials

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abstract: Introduction. Part 1: Physics. Polarized light and gyrotropic media. Magnetooptical effects. Light waveguiding in thin magnetic films. Microscopical mechanisms of magnetooptical activity. Magnetooptical effects in the x ray region. Domain structure. Part 2: Magnetooptical Methods. Dielectrics. Ferrimagnetic garnets. Metals and alloys. Semimagnetic semiconductors. Bilayer, multilayer, superlattice and granular structures. Part 3: Applied Magnetooptics. Thin film magnetooptical devices. Magnetooptical memories, disks and tapes. Integrated magnetooptics. Integrated magnetooptical devices. References. Index.
author_names: Anatolii K Zvezdin

V A Kotov
title: Modern magnetooptics and magnetooptical materials
year: 1997

author_names: Henryk Szymczak
title: Reviews of Books. (A.K. Zvezdinm, V.A. Kotov (1997) Modern Magnetooptics and Magnetooptical Materials.
year: 1997

abstract: In this review new nanostructured materials for magnetooptics are discussed: magnetic photonic crystals and magnetic perforated metal/dielectric films. It is shown that under some conditions the magnetooptical effects in such structures can be significantly enhanced remaining the optical transmittance on a relatively high level. This effect is primarily due to the proper structuring of the material on a nanoscale. Special attention is paid to magnetic substances which are most appropriate for modern magnetooptics.
author_names: Vladimir I Belotelov

V A Kotov

Anatolii K Zvezdin
title: New magnetooptical materials on a nanoscale
year: 2006

author_names: An Teng Gong Er
title: A. K. Zveadin and V. A. Kotpw, Modern Magnetiooptical and Magnetooptical Materials Institute of Physica Pubrishing, Bristol and Philadelphia, 1997, x+viii+368p. 24x16.5cm, \30,970 [Da Xue Yuan Xiang Zhuan Men Shu
year: 1998

abstract: In this paper we report results of magnetooptical measurements done on standard InAs MOCVD layers grown on GaAs. Extremely narrow lines (half widths of the order of 20 mT) narrower than found by other authors in high quality MBE InAs epilayers on GaAs as well as the lines of typical half widths have been found both in the photoconductivity spectra and in the transmission spectra. A detailed comparison with the theoretical dependence of shallow donor and Landau level energies on magnetic field leads to the conclusion that they originate from cyclotron resonance and impurity shifted cyclotron resonance transitions in that material. PACS numbers: 72.40.+w, 71.55. i, 78.30. m
author_names: Tomasz Andrearczyk

Krzysztof Karpierz

And M Grynberg
title: FIR MAGNETOOPTICAL MEASUREMENTS ON MOCVD GROWN
year: 2013

abstract: The magnetooptics of an asymmetric layered waveguide structure is discussed to investigate the possibility of creating new devices that combine both nonreciprocity and nonlinearity. After addressing some fundamental magnetooptic properties and the kind of materials needed, a straightforward envelope theory is given that exploits the Voigt effect instead of the more obvious Faraday effect. It is emphasised that this choice leads to desirable design features. It is proposed that the introduction of an applied magnetic field to a waveguide structure can be achieved through the use of thin current carrying strips. It is emphasised that the strips can be arranged to any degree of complexity and that a high degree of control over spatial soliton dynamics can be achieved. Spatial soliton light beams are selected because they can be generated, within a waveguide, in a stable form. The attractive features of using the type of magnetooptic waveguide investigated here are highlighted with examples and it is concluded that the formats proposed can be used for the fully integrated isolator capacity that modern laser systems demand.
author_names: Allan D Boardman

M Q Xie
title: Magnetooptics in layered nonlinear structures
year: 2003

abstract: Magnetic materials have attracted considerable attention for their applications in high density magneto optical storage devices, which is not only appealing scientifically, but also makes the magnetic materials promising for a wide range of applications [1 11] Due to their unique optical properties, magnetic materials have been introduced into the photonic crystals, forming magnetophotonic crystals (MPCs) i.e. the photonic crystals with at least one magnetic material component [2,3] Now the optical properties can be mediated and controlled by the external electric or magnetic field due to the existence of magnetic materials. The special importance of MPCs can be ascribed to the existence of magnetooptical effects, for example, Kerr effect and Faraday rotation [12 28] They were discovered by Kerr and Faraday, respectively, and are now widely used in integrated optics and magneto optical devices for magnetic domain imaging, mapping of hysteresis loops and high density recording [6] Magnetic materials with large magneto optical responses are always the attractive ones used in magnetophotonic crystals. In contrast to the corresponding three dimensional magnetic structures, magnetic materials exhibit a larger magneto optical effects due to the light's confinement in the MPCs, offering a genuine chance to put their optical responses into applications. The optimized MPCs have been shown to behave like mixed systems, with a coexistence of high transmittance and large magneto optical effects [12 28] All possible configurations are proposed to achieve strong magneto opitcal effects, including the ordinary cavity based, multilayered periodic and aperiodic structures. Furthermore, the diffracted magneto optical enhancement is also demonstrated in the grating structures theoretically and experimentally, which greatly reduces the thickness of the device contrary to multilayered structures and miniaturizes magneto optical devices in integrated optics [29,30] The ability to tune the otpical properties by an external stimulus is a key issue of modern optoelectronics. Although most attention has so far been focused on the magneto optical properties of the given structures, tunable magneto optical devices have important applications and will be respected in optical switches and displays. There are few reports concerning with the tunable magnetophotonic crystals [31 33] For example, it is possible to manipulate the magnetic order of magnetic conducting spheres using the magnetic field, thus forming the tunable magnetophotonic crystals [31] Semiconductor quantum well has O pe n A cc es s D at ab as e w w w .in te ch w eb .o rg
author_names: Haixia Da

Zhen Yuan Li
title: 3 Manipulating Nematic Liquid Crystals based Magnetophotonic Crystals
year: 2018

abstract: We demonstrate a novel approach to the control of the collapse of optical beams in Kerr media. To this end, we consider a combination of two magnetooptical (MO) phenomena, the Cotton Mouton and Faraday effects, in order to introduce a suitable and tunable interplay between the induced linear and circular birefringences. Our numerical analysis confirms that a properly applied external magnetic field may alter the dynamics of the beam propagation in magnetic self focusing bulk Kerr media. For a chosen value of the optical power, the acceleration, the delay or even the arrest of the collapse can be achieved. We demonstrate experimentally the magnetically induced acceleration of the collapse in a ferrimagnetic yttrium iron garnet crystal (YIG) Full Text: PDF References: R.W. Boyd, Nonlinear optics (San Diego, Academic Press 2008) C. Sulem, P.L. Sulem, The nonlinear Schrodinger equation: self focusing and wave collapse (New York, Springer 1999) L. Berge, "Wave collapse in physics: principles and applications to light and plasma waves" Phys. Rep. 303, 259 (1998) [CrossRef] Y.S. Kivshar, D.E. Pelinovsky, "Self focusing and transverse instabilities of solitary waves" Phys. Rep. 331, 117 (2000) [CrossRef] B.A. Malomed, D. Mihalache, F. Wise, and L. Torner, "Spatiotemporal optical solitons" J. Optics B: Quant. Semicl. Opt. 7, R53 (2005) [CrossRef] M. Peccianti, K.A. Brzdakiewicz, G. Assanto, "Nonlocal spatial soliton interactions in nematic liquid crystals" Opt. Lett. 27, 1460 (2002) [CrossRef] O. Bang, W. Krolikowski, J. Wyller, J.J. Rasmussen, "Collapse arrest and soliton stabilization in nonlocal nonlinear media" Phys. Rev. E 66, 046619 (2002) [CrossRef] R. Kurzynowski, W.A. Wozniak, "Superposition rule for the magneto optic effects in isotropic media" Optik 115, 473 (2004) [CrossRef] A.K. Zvezdin, V.A. Kotov, Modern Magnetooptics and Magneto optical Materials (New York, Taylor and Francis 1997) Y. Linzon, K.A. Rutkowska, B.A. Malomed, R. Morandotti, "Magneto optical Control of Light Collapse in Bulk Kerr Media" Phys. Rev. Lett. 103, 053902 (2009) [CrossRef] B.A. Malomed, in Progress in Optics 43, 71 (E. Wolf, North Holland, Amsterdam, 2002) R.Y. Chiao, E. Garmire, C.H. Townes, "Self Trapping of Optical Beams" Phys. Rev. Lett. 13, 479 (1964) [CrossRef]
author_names: Katarzyna A Rutkowska

Yoav Linzon

Boris A Malomed

Roberto Morandotti
title: Control of nonlinear collapse in magnetooptical Kerr media
year: 2009

abstract: UDC 681.41:773.92 We study the effect of the duration of ultraviolet irradiation of D 1 and D 2 photopolymerizable compositions on some physicomechanical properties of a photopolymeric material obtained in the process of photopolymerization. It is shown that these properties become most pronounced for a certain fixed duration of ultraviolet treatment and, hence, continuation of this process becomes unreasonable. The degree of conversion c~ of photopolymeric materials does not exceed 70% Strength and some other characteristics of photopolymers can be improved by additional treatment of the material with high frequency currents. This kind of treatment is characterized by lower power consumption and can be performed much faster than routine thermal treatment (by about two orders of magnitude) Modern personal computers employ magnetooptical data storage devices. Optical disks are characterized by much higher densities of data (10 4 10 5 bits/mm2) which are written and read by a focused laser beam, and greater resistance to the action of external factors [1] The technology of their production includes the following processes: manufacturing of the originals (matrices) of optical disks, copying of optical disks by photochemical patterning (2R process) from liquid photopolymerizable compositions, and thermal treatment of the produced disks to improve and stabilize their physicomechanical properties. (Other methods for copying of optical disks, namely, casting under pressure and molding are not considered here. The last technological operation is traditionally performed by convective heating for several (up to 10) hours. The long duration of this process and high energy consumption increase the cost of optical disks. It is known that dielectrics can be efficiently heated by high frequency currents [2] moreover, this procedure guarantees simultaneous uniform and fairly rapid heating of the entire volume of the specimen. In this paper, we establish an optimal mode of high frequency treatment of optical disks. We studied two photopolymerizable compositions: D 1 and D 2. The D 1 composition consists of OCMC 2 oligocarbonatemethacrylate, TGM 3 trioxyethylenedimethacrylate playing the role of a binding oligomer, and isobutyl ether benzoin (IBEB) as a photoinitiator. The D 2 composition is additionally enriched with MDF 2 oligoetheracrylate. To produce high quality copies of optical disks, the industrial oligomers are kept in a vacuum under a pressure of 1.33 kPa for 3 h. The prepared photopolymerizable compositions are filtered to remove residual solvents and unnecessary impurities and to enhance their stability and working life [3] The compositions obtained as a result are subjected to the action of ultraviolet radiation and undergo polymerization according to the freeradical mechanism. The process of polymerization goes layer by layer [4] Specimens were prepared for testing in a stack between two polished glasses (the gap between the glasses was filled with the liquid photopolymerizable compositions) and irradiated on both sides by panels of LUF 80 ultraviolet lamps at a distance of 150 mm from the surface (illumination energy was 45 W/m z) [5]
author_names: Liang Ka

R I Mervins ' kyi
title: OPTIMIZATION OF PHYSICOMECHANICAL PROPERTIES OF PHOTOPOLYMERIC MATERIALS FOR OPTICAL DATA STORAGE BY TREATMENT WITH HIGH FREQUENCY CURRENTS
year: 1994

abstract: Vapor cells with antirelaxation coating are widely used in modern atomic physics experiments due to the coating's ability to maintain the atoms' spin polarization during wall collisions. We characterize the performance of vapor cells with different coating materials by measuring longitudinal spin relaxation and vapor density at temperatures up to 95*C. We found that the spin projection noise limited sensitivity for atomic magnetometers with such cells improves with temperature, which demonstrates the potential of antirelaxation coated cells in applications of future high sensitivity magnetometers. (c) 2016 Optical Society of America OCIS codes: (020.0020) Atomic and molecular physics; (120.0120) Instrumentation, measurement, and metrology; (230.0230) Optical devices. References and links 1. D. Budker and M. Romalis, "Optical magnetometry," Nat. Phys. 3, 227 (2007) 2. D. Budker, L. Hollberg, D. F. Kimball, J. Kitching, S. Pustelny, and V. Yashchuk, "Microwave transitions and nonlinear magneto optical rotation in anti relaxation coated cells," Phys. Rev. A 71, 012903 (2005) 3. B. Julsgaard, J. Sherson, J. I. Cirac, J. Fiurasek, and E. S. Polzik, "Experimental demonstration of quantum memory for light," Nature 71, 482 (2004) 4. A. Kuzmich, L. Mandel, and N. P. Bigelow, "Generation of spin squeezing via continuous quantum nondemolition measurement," Phys. Rev. Lett. 85, 1594 (2000) 5. S. Pustelny, D. F. Jackson Kimball, C. Pankow, M. P. Ledbetter, P. Wlodarczyk, P. Wcislo, M. Pospelov, J. R. Smith, J. Read, W. Gawlik, and D. Budker, "The Global Network of Optical Magnetometers for Exotic physics (GNOME) A novel scheme to search for physics beyond the Standard Model," Ann. Phys. 525, 659 (2013) 6. S. Pustelny, D. Jackson Kimball, S. Rochester, V. Yashchuk, and D. Budker, "Influence of magnetic field inhomogeneity on nonlinear magneto optical resonances," Phys. Rev. A 74, 063406 (2006) 7. M. A. Bouchiat and J. Brossel, "Relaxation of optically pumped Rb atoms on paraffin coated palls," Phys. Rev. 147, 41 (1966) 8. V. Liberman and R. J. Knize, "Relaxation of optically pumped Cs in wall coated cells," Phys. Rev. A 34, 5115 (1986) 9. M. Graf, D. Kimball, S. Rochester, K. Kerner, C. Wong, D. Budker, E. Alexandrov, M. Balabas, and V. Yashchuk, "Relaxation of atomic polarization in paraffin coated cesium vapor cells," Phys. Rev. A 72, 023401 (2005) 10. T. Karaulanov, M. Graf, D. English, S. Rochester, Y. Rosen, K. Tsigutkin, D. Budker, E. Alexandrov, M. V. Balabas, D. F. Kimball, F. Narducci, S. Pustelny, and V. Yashchuk, "Controlling atomic vapor density in paraffin coated cells using light induced atomic desorption," Phys. Rev. A 79, 012902 (2009) 11. M. V. Balabas, K. Jensen, W. Wasilewski, H. Krauter, L.S. Madsen, J.H. Muller, T. Fernholz, and E.S. Polzik, "High quality anti relaxation coating material for alkali atom vapor cells," Opt. Express 18, 5825 (2010) 12. M. V. Balabas, "Dependence of the longitudinal relaxation time of the polarization of cesium atoms in the ground state on the temperature of an antirelaxation coating," Tech. Phys. 55, 1324 (2010) 13. M. V. Balabas and O. Y. Tret'yak, "Temperature dependence of the kinetics of irreversible escape of cesium atoms from a vapor phase into an antirelaxation coating," Tech. Phys. 57, 1257 (2012) 14. K. Nasyrov, S. Gozzini, A. Lucchesini, C. Marinelli, S. Gateva, S. Cartaleva, and L. Marmugi, "Antirelaxation coatings in coherent spectroscopy: Theoretical investigation and experimental test," Phys. Rev. A 92, 043803 (2015) 15. S. J. Seltzer, D. J. Michalak, M. H. Donaldson, M. V. Balabas, S.K. Barber, S. L. Bernasek, M. A. Bouchiat, A. Hexemer, A. M. Hibberd, D. F. Kimball, C. Jaye, T. Karaulanov, F. A. Narducci, S. A. Rangwala, H. G. Robinson, A. K. Shmakov, D.L. Voronov, V. V. Yashchuk, A. Pines, and D. Budker, "Investigation of antirelaxation coatings for alkali metal vapor cells using surface science techniques," J. Chem. Phys. 133, 144703 (2010) 16. M. V. Balabas, T. Karaulanov, M. P. Ledbetter, and D. Budker, "Polarized alkali metal vapor with minute long transverse spin relaxation time," Phys. Rev. Lett. 105, 070801 (2010) 17. M. V. Balabas and O. Y. Tretiak, "Comparative study of alkali vapour cells with alkane alkeneand 1 nonadecylbenzene based antirelaxation wall coatings," Quantum Electron. 43, 1175 (2013) 18. K. Jensen, R. Budvytyte, R. A. Thomas, T. Wang, A. Fuchs, M. V. Balabas, G. Vasilakis, L. Mosgaard, T. Heimburg, S. Olesen, and E.S. Polzik, "Non invasive detection of animal nerve impulses with an atomic magnetometer operating near quantum limited sensitivity," arXiv:1601.03273 (2016) 19. J. Kitching, S. Knappe, and L. Hollberg, "Miniature vapor cell atomic frequency references," Appl. Phys. Lett. 81, 553 (2002) 20. M. P. Ledbetter, I. M. Savukov, V. M. Acosta, D. Budker, and M. V. Romalis, "Spin exchangerelaxation free magnetometry with Cs vapor," Phys. Rev. A 77, 1 (2008) 21. S. J. Seltzer and M. V. Romalis, "High temperature alkali vapor cells with antirelaxation surface coatings," J. Appl. Phys. 106, 114905 (2009) 22. C. Rahman and H. G. Robinson, "Rb O O hyperfine transition in evacuated wall coated cell at melting temperature," IEEE J. Quantum Electron. 23, 452 (1987) 23. J. Vanier, R. Kunski, A. Brisson, and P. Paulin, "Progress and prospects in rubidium frequency standards," J. Phys. 42, 139 (1981) 24. D. Budker and D. F. Kimball, Optical Magnetometry (Cambridge University, 2013) 25. It is often the transverse spin relaxation time (T2) that appears in Eq. (1) to represent the spin relaxation time trel. Since the transverse spin relaxation time is limited by the longitudinal spin relaxation time (T1) (T2 2T1, which is the regime where atomic magnetometers are often operated) we use T1 to represent the spin relaxation time trel in Eq. (1) to study the fundamental limit to the magnetometric sensitivity. 26. W. Franzen, "Spin relaxation of optically aligned rubidium vapor," Phys. Rev. 115, 850 (1959) 27. W. Chalupczak, P. Josephs Franks, R. M. Godun, and S. Pustelny, "Radio frequency spectroscopy in the dark," Phys. Rev. A 88, 052508 (2013) 28. V. V. Yashchuk, D. Budker, and J. R. Davis, "Laser frequency stabilization using linear magnetooptics," Rev. Sci. Instrum. 71, 341 (2000) 29. Even larger locking ranges may be achieved with DAVLLs operated at alleviated temperatures [35] or systems using buffer gas cells [36] 30. S. Rochester, AtomicDensityMatrix v15.08.27 (2015) 31. S. J. Seltzer, M. A. Bouchiat, and M. V. Balabas, "Surface coatings for atomic magnetometry," in Optical Magnetometry, D. Budker and D. F. Kimball, ed. (Cambridge University, 2013) Chap. 11, pp. 205 224. 32. N. Sekiguchi and A. Hatakeyama, "Non negligible collisions of alkali atoms with background gas in buffer gas free cells coated with paraffin," Appl. Phys. B 122, 81 (2016) 33. E. Zhivun, A. Wickenbrock, J. Sudyka, S. Pustelny, B. Patton, and D. Budker, "Light shift averaging in paraffin coated alkali vapor cells," arXiv:1511.05345 (2015) 34. N. Bhaskar, J. Pietras, J. Camparo, W. Happer, and J. Liran, "Spin destruction in collisions between cesium atoms," Phys. Rev. Lett. 44, 930 (1980) 35. A. L. Marchant, S. Handel, T. P. Wiles, S. A. Hopkins, C. S. Adams, and S. L. Cornish, "Offresonance laser frequency stabilization using the Faraday effect," Opt. Lett. 36, 64 (2011) 36. S. Pustelny, V. Schultze, T. Sholtes, and D. Budker, "Dichroic atomic vapor laser lock with multigigahertz stabilization range," arXiv:1512.08919 (2015) 37. E. Zhivun, A. Wickenbrock, B. Patton, and D. Budker, "Alkali vapor magnetic resonance driven by fictitious radiofrequency fields," Appl. Phys. Lett. 105, 192406 (2014)
author_names: Wenhao Li

Mikhail V Balabas

Xiang Peng

S Pustelny

Arne Wickenbrock

Hong Guo

Dmitry Budker
title: Title Characterization of high temperature performance of cesium vapor cells with anti relaxation coating Permalink
year: 2016