Don Schmadel  (at serious work)                                  (and not so serious work)
  • Office:  (301) 405-6141
  • Lab:     (301) 405-7278
  • FAX:   (301) 314-9465
  • Address: Department of Physics, University of Maryland, College Park, MD 20742


    • Ph.D. 2002   Thesis

    B.S.  1974

    Research Projects: Infrared Hall effect in High Temperature Superconductors
                       Immersion techniques for infrared microscopy of integrated circuits
                       Polarization-maintaining probes for Near-field Scanning Optical Microscopy
                       Cyclotron resonance of thermally generated quasiparticles in High Temperature Superconductors


    Aspen2004_material

    Magneto-Optic Evidence for a Gapped Fermi Surface in Underdoped YBCO

    Measurement of the infrared magneto-optic properties of thin-film metals and high temperature superconductors

    The mid-infrared AC Hall e ect in optimally-doped BSCCO


    Publications:

    Infrared Hall conductivity in optimally doped Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub 8+\u03b4/: Drude behavior examined by experiment and fluctuation-exchange-model calculations Schmadel, D.C.; Jenkins, G.S.; Tu, J.J.; Gu, G.D.; Kontani, H.; Drew, H.D. In Physical Review B (Condensed Matter), 1 April 2007, vol.75, no.14, pp. 140506-1-4, Journal Paper. (AN: 9472619)

    Development of high-throughput, polarization-maintaining, near-field probes Adiga, V.P.; Kolb, P.W.; Evans, G.T.; Cubillos-Moraga, M.A.; Schmadel, D.C.; Dyott, R.; Drew, H.D. In Applied Optics, 20 April 2006, vol.45, no.12, pp. 2597-600, Journal Paper. (AN: 9006556)

    Magneto-optical evidence for a gapped Fermi surface in underdoped YBa/sub 2/Cu/sub 3/O/sub 6+x/ Rigal, L.B.; Schmadel, D.C.; Drew, H.D.; Maiorov, B.; Osquiguil, E.; Preston, J.S.; Hughes, R.; Gu, G.D. In Physical Review Letters, 24 Sept. 2004, vol.93, no.13, pp. 137002/1-4, Journal Paper. (AN: 8124874)

    Measurement of the infrared magneto-optic properties of thin-film metals and high temperature superconductors Cerne, J.; Schmadel, D.C.; Rigal, L.B.; Drew, H.D. In Review of Scientific Instruments, Nov. 2003, vol.74, no.11, pp. 4755-67, Journal Paper. (AN: 7775463)

    Far-infrared Hall effect in normal state of YBCO Grayson, M.; Rigal, L.; Schmadel, D.C.; Drew, H.D.; Kung, P.-J. In International Journal of Modern Physics B, 30 Aug. 2002, vol.16, no.20-22, pp. 3148, Conference Paper in Journal. (AN: 7609966)

    Spectral measurement of the Hall angle response in normal state cuprate superconductors Grayson, M.; Rigal, L.B.; Schmadel, D.C.; Drew, H.D.; Kung, P.-J. In Physical Review Letters, 15 July 2002, vol.89, no.3, pp. 037003/1-4, Journal Paper. (AN: 7402210)
           
    Far-infrared Hall effect in normal state of YBCO Grayson, M.; Rigal, L.; Schmadel, D.C.; Drew, H.D.; Kung, P.-J. In Proceedings of Physical Phenomena at High Magnetic Fields - IV, 2002, pp., pp. 250, xxi+518 pp. Singapore, Singapore;  Santa Fe, NM, USA : World Scientific, Conference Paper. (AN: 7679998)
           
    The AC Hall effect in YBCO: temperature and frequency dependence of Hall scattering Cerne, J.; Grayson, M.; Schmadel, D.C.; Simpson, J.; Drew, H.D.; Hughes, R.; Preston, J.S.; Kung, P.-J. In Physica B, July 2000, vol.284-288, pp. 941-2, Conference Paper in Journal. (AN: 6688571)
           
    Infrared Hall effect in high-T/sub c/ superconductors: evidence for non-Fermi-liquid Hall scattering Cerne, J.; Grayson, M.; Schmadel, D.; Jenkins, G.S.; Drew, H.D.; Hughes, R.; Dabkowski, A.; Preston, J.S.; Kung, P.-J. In Physical Review Letters, 10 April 2000, vol.84, no.15, pp. 3418-21, Journal Paper. (AN: 6689402)
           
    Midinfrared Hall effect in thin-film metals: Probing the Fermi surface anisotropy in Au and Cu Cerne, J.; Schmadel, D.C.; Craysan, M.; Jenkins, C.S.; Simpson, J.R.; Drew, H.D. In Physical Review B (Condensed Matter), 15 March 2000, vol.61, no.12, pp. 8133-40, Journal Paper. (AN: 6564540)
     
    The infrared Hall effect in YBCO: temperature and frequency dependence of Hall scattering Grayson, M.; Cerne, J.; Drew, H.D.; Schmadel, D.C.; Hughes, R.; Preston, J.S.; Kung, P.-J.; Vale, L. In Journal of Low Temperature Physics, Dec. 1999, vol.117, no.5-6, pp. 1055-8, Conference Paper in Journal. (AN: 6493013)
     
    Ferromagnetic antiresonance in La/sub 0.7/Ba/sub 0.3/MnO /sub 3/ traced out by temperature variation Bhagat, S.M.; Lofland, S.E.; Kim, P.H.; Schmadel, D.C.; Kwon, C.; Ramesh, R.; Tyagi, S.D. In Journal of Applied Physics, 15 April 1997, vol.81, no.8, pp. 5157-8, Conference Paper in Journal. (AN: 5675249)

    Optically multiplexed interferometric fiber optic sensor system Belsley, K.L.; Carroll, J.B.; Hess, L.A.; Huber, D.R.; Schmadel, D. In Proceedings of the SPIE - The International Society for Optical Engineering, 1985, vol.566, pp. 257-65, Conference Paper in Journal. (AN: 2834344)


    Patents:

    6,741,768     Optical switch
    6,430,328     Optical switch
    6,421,163     Two dimensional transform generator
    4,725,137     Process and apparatus for measuring an evanescent field in an optical fiber
    4,697,888     Frequency shifted cavity for electromagnetic radiation
    4,636,031     Process of tuning a grated optical fiber and the tuned optical fiber
    4,593,969     Ruggedized grated optical fiber
    4,568,408     Fiber optic energy sensor and optical demodulation system and methods of making same
    4,566,889     Process of fabricating a portion of an optical fiber capable of reflecting predetermined wavelength bands of light
    4,468,091     Fiber optic energy sensor and demodulation system and method of making same
    4,360,272     Fiber optic energy sensor and optical demodulation system and methods of making same
    4,268,116     Method and apparatus for radiant energy modulation in optical fibers


    Collaborators:

    Prof. H. Dennis Drew
     

    Junior collaborators

    Last Modified: 12/5/07