Search Results - "Gäumann, G"

High-energy terahertz pulses from semiconductors pumped beyond the three-photon absorption edge by Polónyi, Gy, Monoszlai, B, Gäumann, G, Rohwer, E J, Andriukaitis, G, Balciunas, T, Pugzlys, A, Baltuska, A, Feurer, T, Hebling, J, Fülöp, J A

“…A new route to efficient generation of THz pulses with high-energy was demonstrated using semiconductor materials pumped at an infrared wavelength sufficiently…”
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Measurement of four-photon absorption in GaP and ZnTe semiconductors by Monoszlai, B, Nugraha, P S, Tóth, Gy, Polónyi, Gy, Pálfalvi, L, Nasi, L, Ollmann, Z, Rohwer, E J, Gäumann, G, Hebling, J, Feurer, T, Fülöp, J A

“…Intensity-dependent effective four-photon absorption (4PA) coefficients in GaP and ZnTe semiconductors were measured by the z-scan method using pump pulses of…”
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Strong field transient manipulation of electronic states and bands by Crassee, I., Gallmann, L., Gäumann, G., Matthews, M., Yanagisawa, H., Feurer, T., Hengsberger, M., Keller, U., Osterwalder, J., Wörner, H. J., Wolf, J. P.

“…In the present review, laser fields are so strong that they become part of the electronic potential, and sometimes even dominate the Coulomb contribution. This…”
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Nonlinear THz spectroscopy and simulation of gated graphene by Gäumann, G, Crassee, I, Numan, N, Tamagnone, M, Mosig, J R, Poumirol, J-M, Wolf, J-P, Feurer, T

“…We studied the nonlinear optical properties of single layer graphene using high terahertz (THz) fields. With the use of a back gate and cooling down the sample…”
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Generation and measurement of traceable THz frequencies by Gaumann, G., Morel, J.

“…We present different methods and preliminary results for establishing frequency traceability of continuous wave (CW) terahertz (THz) radiation in the 50 -…”
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Measurement of Effective Four-Photon Absorption in Semiconductors by Polonyi, Gy, Feurer, T., Hebling, J., Fulop, J. A., Monoszlai, B., Nugraha, P. S., Toth, Gy, Palfalvi, L., Nasi, L., Ollmann, Z., Rohwer, E. J., Gaumann, G.

“…The growing number of near- and mid-infrared laser and parametric sources with ultrashort pulse duration and high pulse energy opens up new possibility for…”
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Time-Resolved Optical Pump -THz Ellipsometer Probe Measurements by Kang, B. J., Gaumann, G., Marsik, P., Bernhard, C., Feurer, T.

“…We present the first optical pump-THz ellipsometer probe setup together with proof of principle measurements carried out on an UHR-silicon wafer. The retrieved…”
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THz-induced Insulator-to-Metal Transition in Stacked VO2 Nano-slits by Kang, B. J., Chaker, M., Hack, E., Maaza, M., Feurer, T., Gaumann, G., Numan, N., Ollmann, Z., Waeber, Y., Bagiante, S., Valzania, L., Zolliker, P., Emond, N.

“…We study the nonlinear, field dependent properties of stacked nano-slit array structures. Specifically, by measuring the field dependent THz transmission, we…”
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High-energy terahertz pulses from semiconductors pumped above the three-photon absorption edge by Polonyi, Gy, Monoszlai, B., Andriukaitis, G., Gaumann, G., Balciunas, T., Pugzlys, A., Baltuska, A., Feurer, T., Hebling, J., Fulop, J. A.

“…THz generation scalable to high energies in ZnTe and GaP by tilted pulse front pumping at 1.45 and 1.7 μm wavelength was demonstrated. Up to 0.7% efficiency…”
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In Print O' Life: Ballads Old and New by Gaumann, Gladys Valcourt

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A Year of Utopias by Gaumann, Gladys Valcourt

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