Don Schmadel (at serious work)                                                                   (with junior collaborators)



Curriculum Vitae

Physics Ph.D. University of Maryland 2002   Thesis

Physics B.S. University of Pittsburgh 1974



Research Projects

Plasmoninc activity in Graphene
Graphene Terahertz Generation and Emission
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



Publications

Experiments with arbitrary networks in time-multiplexed delay systems Joseph D. Hart, Don C. Schmadel, Thomas E. Murphy, and Rajarshi Roy; Chaos 27, 121103 (2017) DOI: 10.1063/1.5016047

"Proposal for a Graphene Plasmonic THz Emitter" Don Schmadel, Gregory S. Jenkins, H. Dennis Drew; arXiv:1311.1605 (2014)

"Probing limits on spatial resolution using nonlinear optical effects and nonclassical light Y. Leng, D. H. Park, D. Schmadel, V. E. Yun, W. N. Herman, J. Goldhar; Appl Opt. 2014 Jan 1;53(1):51-63. doi: 10.1364/AO.53.000051 (2014)

"Giant plateau in the terahertz Faraday angle in gated Bi2Se3 Jenkins, Gregory S.; Sushkov, Andrei B.; Schmadel, Don C.; Kim, M.-H.; Brahlek, Matthew; Bansal, Namrata; Oh, Seongshik; Drew, H. Dennis Drew; Phys. Rev. B 86, 235133 (2012) DOI: http://dx.doi.org/10.1103/PhysRevB.86.235133

"Dirac cone shift of a passivated topological Bi2Se3 interface state" Gregory S. Jenkins, Andrei B. Sushkov, Don C. Schmadel, Max Bichler, Gregor Koblmueller, Matthew Brahlek, Namrata Bansal, Seongshik Oh, H. Dennis Drew; PhysRevB.87.155126, (2012) DOI: 10.1103/PhysRevB.87.155126

"Terahertz Hall measurements on optimally doped single-crystal Bi2Sr2CaCu2O8+x" G. S. Jenkins, D. C. Schmadel, A. B. Sushkov, G. D. Gu, H. Kontani, and H. D. Drew; Phys. Rev. B 82, 094518 (2010)

"Terahertz Kerr and reflectivity measurements on the topological insulator Bi2 Se3" G. S. Jenkins, A. B. Sushkov, D. C. Schmadel, N. P. Butch, J. Paglione, and H. D. Drew; Phys. Rev. B 82, 125120 (2010)

"Far-infrared cyclotron resonance and Faraday effect in Bi2Se3"; A. B. Sushkov, G. S. Jenkins,C. Schmadel, N. P. Butch, J. Paglione, and H. D. Drew; Phys. Rev. B 82, 125110 (2010)

"Simultaneous measurement of circular dichroism and Faraday rotation at terahertz frequencies utilizing electric field sensitive detection via polarization modulation"; G. S. Jenkins, D. C. Schmadel, and H. D. Drew; Rev. Sci. Instrum. 81, 083903 (2010) D.

"Origin of the anomalous Hall effect in the overdoped n-type superconductor Pr2xCexCuO4: Current-vertex corrections due to antiferromagnetic fluctuations"; G. S. Jenkins, D. C. Schmadel, P. L. Bach, R. L. Greene, X. Béchamp-Laganière, G. Roberge, P. Fournier, Hiroshi Kontani, and H. D. Drew; Phys. Rev. B 81, 024508 (2010)

"Terahertz magnetotransport measurements in underdoped Pr2xCex CuO4 and comparison with angle-resolved photoemission"; G. S. Jenkins, D. C. Schmadel, P. L. Bach, R. L. Greene, X. Béchamp-Laganière, G. Roberge, P. Fournier, and H. D. Drew; (Editor' Suggestion) Phys. Rev. B 79, 224525 (2009)

"Optical plasmonic resonances in split-ring resonator structures: an improved LC model" Corrigan, T. D., Kolb, P. W., Sushkov A.B., Drew H.D., Schmadel D.C., Phaneuf R.J.; OPTICS EXPRESS 16, 19850-19864 (2008)

"Infrared Hall effect in the electron-doped high- Tc cuprate Pr 2xCexCuO4" A. Zimmers, L. Shi, D. C. Schmadel, W. M. Fisher, R. L. Greene, H. D. Drew, M. Houseknecht, G. Acbas, M.-H. Kim, M.-H. Yang, J. Cerne, J. Lin, and A. Millis; Phys. Rev. B 76, 064515 (2007)

"Infrared Hall conductivity of Na0.7CoO2" E. J. Choi, S. H. Jung, J. H. Noh, A. Zimmers, D. Schmadel, H. D. Drew, Y. K. Bang, J. Y. Son, and J. H. Cho; Phys. Rev. B 76, 033105 (2007)

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

14843468     Plasmonic activated graphene terahertz generating devices and systems(pending)
7,933,482     Optical fiber probe tips and methods for fabrication same
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


Experimental Physics I (Physics 275)

Summary notes



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



Fun



Ham Radio, call sign KC3CNK Extra Class, QSL Spain from Sugarloaf Mountain, MD.



2007 Suzuki DR650



Chrissie and Dora

Origin of the Word Embassy

by Don Schmadel

I wish to offer the following proposition for the etymology of the term "embassy" as well as its numerous inflected forms, e.g., ambassador, embassodor, embassade.

The majority of lexicons currently present the origin as Old French from perhaps latin or even Celtic. The oldest clear use appears to have been by Ceasar. But further explanation of the origin of this term is not to be found. As it is unlikely that Caesar simply blurted out an arbitrary sound to be to be used for so important an office, we are reasonable to expect a more profound source for this word as well as an explanation as to why this information has escaped scholars to date.

Please allow me to direct your attention to "Batrachomyomachia" (The Battle between the Mice and Frogs) a parody of the Iliad. In this masterpiece the king of the mice, Psicharpax (Gather Crum) accidentally drowns when his host the king of the frogs, Physignathus (Great in Blow-up), on whose back he clings, dives beneath to water to avoid being dinner for a watersnake. The Empire of the Mice, in the heroic tradition of the time, soon declares war on the frogs. Accordingly, they dispatch one of their own with the following message: "O Frogs!, the Mise sends threats to you of armes And bid me bid ye Battell and fixt fight;"* This noble messenger was no other than the famed "Embassichytrus" which translates roughly as "Pot Searcher."

No doubt Caesar would have read Homer's works as well as this parody and thus would have been well acquainted with Embassichytrus and his courageous function in the story. We should feel little surprise that Caesar would bestow upon such office some form of the name of its progenitor, Embassichitrus.

The foregoing now would also explain why the origin of "embassy" has eluded scholars. Any student of Classical Greek when searching phonetic similairities would have collected such terms as: pot, vessel, searcher, visitor. etc. None of these relates to the use of the word embassy or ambassador. This is because though Embassichtrus was known and honored by his contemporaries for celerity in pot searcing; he is rememberd by us for his courage as a messenger. This latter deed entered history long after he had already been named and so is not reflected in the same.

*translation excerpted from Chapmen's Homer

Last Modified: 4/12/21