Fluorescent Nanocrystals for Biomedical Applications

Autor: Christian Schmidtke, Horst Weller, Hauke Kloust, J.M. Ostermann

Publikováno v: Zeitschrift für Physikalische Chemie. 228:183-192

We report on fluorescence quenching experiments of CdSe quantum dots, which were encapsulated for biocompatibility using different strategies. Since their fluorescence is very sensitive against water and other quenching molecules reaching their surfa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e745770125e2da950fe26c65f88a5e53
https://doi.org/10.1515/zpch-2014-0481

Investigations on the Intensity Noise of Surface Grating Relief VCSELs

Autor: Pierluigi Debernardi, Rainer Michalzik, Martin Blazek, Andreas Molitor, J.M. Ostermann, Wolfgang E. Elsaesser

Publikováno v: Quantum electronics (Woodbury N.Y.) 46/4 (2010): 554–561. doi:10.1109/JQE.2009.2036863
info:cnr-pdr/source/autori:Molitor, A (Molitor, Andreas)1; Blazek, M (Blazek, Martin)1; Ostermann, JM (Ostermann, Johannes Michael)2; Michalzik, R (Michalzik, Rainer)2; Debernardi, P (Debernardi, Pierluigi)3; Elsaesser, W (Elsaesser, Wolfgang)1/titolo:Investigations on the Intensity Noise of Surface Grating Relief VCSELs/doi:10.1109%2FJQE.2009.2036863/rivista:Quantum electronics (Woodbury N.Y.)/anno:2010/pagina_da:554/pagina_a:561/intervallo_pagine:554–561/volume:46%2F4

We present polarization-resolved intensity noise investigations of oxide-confined vertical-cavity surface-emitting lasers (VCSELs) with an integrated small-area surface grating. We demonstrate that the reduction of the complex polarization and transv

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::01c5168537fa63ed333de12633950e15
https://doi.org/10.1109/jqe.2009.2036863

High-performance AlGaAs-based VCSELs emitting in the 760nm wavelength range

Autor: F. Rinaldi, J.M. Ostermann, Andrea Kroner, Rainer Michalzik

Publikováno v: Optics Communications. 270:310-313

Vertical-cavity surface-emitting lasers (VCSELs) showing continuous-wave operation with emission wavelengths ranging between 717 and 790 nm have been fabricated. The samples are grown by solid source molecular beam epitaxy on GaAs substrates and are

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::417a2ecd849457ec71e4f52b2d9c66c2
https://doi.org/10.1016/j.optcom.2006.09.004

Theoretical-Experimental Study of the Vectorial Modal Properties of Polarization-Stable Multimode Grating VCSELs

Autor: Rainer Michalzik, J.M. Ostermann, G.P. Bava, Pierluigi Debernardi, Thorsten Ackemann, Markus Sondermann

Publikováno v: IEEE journal of selected topics in quantum electronics (2007). doi:10.1109/JSTQE.2007.904165
info:cnr-pdr/source/autori:Debemardi, P (Debernardi, Pierluigi); Ostermann, JM (Ostermann, Johannes Michael); Sondermann, M (Sondermann, Markus); Ackemann, T (Ackemann, Thorsten); Bava, GP (Bava, Gian Paolo); Michalzik, R (Michalzik, Rainer)/titolo:Theoretical-experimental study of the vectorial modal properties of polarization-stable multimode grating VCSEL/doi:10.1109%2FJSTQE.2007.904165/rivista:IEEE journal of selected topics in quantum electronics/anno:2007/pagina_da:/pagina_a:/intervallo_pagine:/volume

Vertical-cavity surface-emitting lasers (VCSELs) with a monolithically integrated grating in the outcoupling aperture have proven to generate a stable and predictable polarization of the emitted light. This paper provides further insight into the pol

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cfa5f51bd1faea8c640a691af010f240
https://doi.org/10.1109/jstqe.2007.904165

Investigation of Polarization Properties of VCSELs Subject to Optical Feedback From an Extremely Short External Cavity—Part I: Theoretical Analysis

Autor: Rainer Michalzik, Hugo Thienpont, Heiko J. Unold, Krassimir Panajotov, J.M. Ostermann, M.A. Arteaga

Publikováno v: IEEE Journal of Quantum Electronics. 42:89-101

A two modes rate equation model for vertical-cavity surface-emitting lasers (VCSELs) subject to optical feedback from an extremely short external cavity (ESEC) is presented. By making use of it we develop a map of bistability to investigate the param

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::59450f50d1ea3b8e7740f13ad9d7d03b
https://doi.org/10.1109/jqe.2005.861622