A hepatoid carcinoma of the pancreatic head

Autor: C. Spiegelberg, L. Theilmann, D. Stamatova

Publikováno v: Surgical Case Reports

Hepatoid carcinoma (HC) is an extremely rare form of neoplasm. Its cellular structure resembles that of a hepatocellular carcinoma (HCC). To date, only 26 cases of hepatoid carcinoma of the pancreas have been reported in the literature. We report the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cddae222d55b0d4218af82938b165cfc
https://doi.org/10.1186/s40792-016-0197-7

A compact 100-km FMCW fiber laser radar

Autor: S. Jiang, C. Spiegelberg, J. Geng

Publikováno v: 2005 Quantum Electronics and Laser Science Conference.

Frequency-modulated continuous wave (FMCW) measurements of Rayleigh back-scattering and Fresnel reflection from 95-km fiber have been demonstrated with a compact piezo-electrically-tuned sub-kilohertz-linewidth fiber laser. This is, to our knowledge,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0118f9581f31fd8b82748f937636cf54
https://doi.org/10.1109/qels.2005.1549349

Interwell excitons in GaAs superlattices

Autor: V. G. Lyssenko, Christopher J. Stanton, Vladislav B. Timofeev, C. Spiegelberg, Jørn Märcher Hvam, Manfred Bayer, K. El Sayed, G. D. Sanders, Dan Birkedal

Publikováno v: Birkedal, D, Sayed, K E, Sanders, G, Spiegelberg, C, Vadim, L, Stanton, C, Hvam, J M, Timofeev, V B & Bayer, M 1996, ' Interwell excitons in GaAs superlattices ', Physical Review B, vol. 54, no. 15, pp. 10316-10319 . https://doi.org/10.1103/PhysRevB.54.10316

The formation of spatially indirect excitons in superlattices with narrow minibands is theoretically and experimentally investigated. We identify the experimental conditions for the observation of interwell excitons and find a distinct excitonic stat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9931454d10c8895175eacd059149445
https://pubmed.ncbi.nlm.nih.gov/9984812

High-resolution spectroscopy of matrix-isolated fullerene molecules

Autor: A. V. Chugreev, Yu. S. Grushko, Jørn Märcher Hvam, Konstantin Litvinenko, A. N. Starukhin, S. N. Kolesnik, D. K. Nelson, B. S. Razbirin, G. Martinez, C. Spiegelberg, J. Zeman, Dan Birkedal

Publikováno v: Journal of Luminescence. :457-458

We have offered a method of obtaining fine-structured vibronic spectra of fullerenes. At liquid-helium temperatures tens of narrow lines with half-width ≈ 0.5 me V have been observed in the emission and absorption spectra of fullerene molecules emb

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b7dbfcadef525a1e1e54faf428c21d7d
https://doi.org/10.1016/s0022-2313(96)00406-1

Narrow linewidth fiber laser for 100-km optical frequency domain reflectometry.

Autor: Jihong Geng, C. Spiegelberg, Shibin Jiang

Publikováno v: IEEE Photonics Technology Letters; Sep2005, Vol. 17 Issue 9, p1827-1829, 3p