Many-Body Dynamics and Exciton Formation Studied by Time-Resolved Photoluminescence (2005)
Hoyer, W., Ell, C., Kira, M., Koch, S. W., Chatterjee, S., Mosor, S., ...
The dynamics of exciton and electron-hole plasma populations is studied via time-resolved photoluminescence after nonresonant excitation. By comparing the peak emission at the exciton resonance with...
Excitonic Photoluminescence in Semiconductor Quantum Wells: Plasma versus Excitons (2003)
Chatterjee, S., Ell, C., Mosor, S., Khitrova, G., Gibbs, H. M., Hoyer, W., ...
Time-resolved photoluminescence spectra after nonresonant excitation show a distinct 1s resonance, independent of the existence of bound excitons. A microscopic analysis identifies excitonic and...
Linewidths of normal mode coupling microcavities (1998)
Gibbs, H.M., Ell, C., Khitrova, G., Prineas, J., Nelson, T.R., Park, Jr.S., ...
Ell, C., Prineas, J., Nelson, T. R. Jr., Park, S., Gibbs, H. M., Khitrova, G., ...
Summary form only given. Radiative coupling between one or more quantum wells (QWs) and the single-cavity mode of a moderate reflectivity semiconductor microcavity leads to normal-mode coupling...
TrÄnkle, G., Lach, E., Forchel, A., Ell, C., Haug, H., Weimann, G., ...
We have investigated the band gap renormalization due to many-body effects in electron hole plasmas in quasi-two-dimensional multiple quantum well structures. A comparison of the data obtained in...
TrÄnkle, G., Lach, E., Forchel, A., Ell, C., Haug, H., Weimann, G., ...
We have investigated the band gap renormalization due to many-body effects in electron hole plasmas in quasi-two-dimensional multiple quantum well structures. A comparison of the data obtained in...
TrÄnkle, G., Lach, E., Forchel, A., Ell, C., Haug, H., Weimann, G., ...
We have investigated the band gap renormalization due to many-body effects in electron hole plasmas in quasi-two-dimensional multiple quantum well structures. A comparison of the data obtained in...
Memory metal stents for palliation of malignant obstruction of the oesophagus and cardia.
May, A, Selmaier, M, Hochberger, J, Gossner, L, Mühldorfer, S, Hahn, E G, ...
Thirty patients with incurable malignant obstruction of the oesophagus and cardia were treated with self expanding oesophageal memory metal stents (Ultraflex) in a prospective study. The...
Laserlithotripsy of common bile duct stones.
Ell, C, Lux, G, Hochberger, J, Müller, D, Demling, L
Endoscopic retrograde laser lithotripsy of common bile duct stones is a new technique which can be carried out through the endoscope without anaesthesia using ordinary endoscopic equipment. In the...
Tissue reactions under piezoelectric shockwave application for the fragmentation of biliary calculi.
Ell, C, Kerzel, W, Heyder, N, Rödl, W, Langer, H, Mischke, U, ...
The tissue reactions that occurred during piezoelectric shockwaves for the fragmentation of biliary calculi were investigated in 10 surgically removed stone containing human gall bladders and in...
Ell, C, Gossner, L, May, A, Schneider, H, Hahn, E, Stolte, M, ...
a Department of Medicine II, HSK Wiesbaden, b Department of Medicine I, University of Erlangen-Nuremberg, c Institute of Pathology, Bayreuth, d LFL-Laser Research Laboratory, Department of...
Hochberger, J, Bayer, J, May, A, Muhldorfer, S, Maiss, J, Hahn, E, ...
a Department of Medicine I, Friedrich Alexander University, Erlangen, Germany, b Department of Medicine II, HSK Wiesbaden, Germany
Muehldorfer, S M, Stolte, M, Martus, P, Hahn, E G, Ell, C
Aims: To determine whether an adequate histological diagnosis of gastric polyps can be attained on the basis of forceps biopsy.
May, A, Günter, E, Roth, F, Gossner, L, Stolte, M, Vieth, M, ...
Background and aims: The increasing use of endoscopic resection for curative treatment of early oesophageal cancers requires accurate staging before therapy. In a prospective blinded trial, we...
Improving endoscopic resolution and sampling: fluorescence techniques
Gastrointestinal tumours are usually associated with a poor prognosis, as most are only diagnosed at an advanced stage. Every effort to improve intraluminal diagnosis in gastroenterology must...