Afiliat la Universitatea Christian- Albrechts din Kiel

Focusing effect of photonic crystal concave lenses made from porous dielectrics

Sergentu Vladimir , Foca Eugen , Langa Sergiu , Carstensen Juergen , Foll Helmut , Tighineanu Ion

Physica Status Solidi (A) Applied Research

Vol. 201, / 2004 / ISSN 0031-8965 / ISSNe 1521-396X

Disponibil online 20 November, 2023

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2003 - 6

Luminescence of GaN nanocolumns obtained by photon-assisted anodic etching

Tighineanu Ion , Ursachi Veaceslav , Zalamai Victor , Langa Sergiu , Hubbard Seth Martin , Pavlidis Dimitris , Foll Helmut

Applied Physics Letters

Vol. 83, / 2003 / ISSN 0003-6951

Disponibil online 15 June, 2023

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Porous III-V compounds as nonlinear optical materials

Tighineanu Ion , Cravetchi Igor , Langa Sergiu , Marowsky Gerd , Monecke Jochen , Foll Helmut

Physica Status Solidi (A) Applied Research

Vol. 197, / 2003 / ISSN 0031-8965 / ISSNe 1521-396X

Disponibil online 20 November, 2023

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Electrochemical pore etching in Ge

Langa Sergiu , Christophersen Marc , Carstensen Juergen , Tighineanu Ion , Foll Helmut

Physica Status Solidi (A) Applied Research

Vol. 195, / 2003 / ISSN 0031-8965 / ISSNe 1521-396X

Disponibil online 20 November, 2023

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Pores in III-V semiconductors

Foll Helmut , Langa Sergiu , Carstensen Juergen , Christophersen Marc , Tighineanu Ion

Advanced Materials

Vol. 15, / 2003 / ISSN 0935-9648 / ISSNe 1521-4095

Disponibil online 28 June, 2023

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Engineering porous III-Vs

Foll Helmut , Langa Sergiu , Carstensen Juergen , Lolkes Stefan , Christophersen Marc , Tighineanu Ion

III-Vs Review

Vol. 16, / 2003 / ISSN 0961-1290

Disponibil online 13 February, 2024

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Self-organized growth of single crystals of nanopores

Langa Sergiu , Tighineanu Ion , Carstensen Juergen , Christophersen Marc , Foll Helmut

Applied Physics Letters

Vol. 82, / 2003 / ISSN 0003-6951

Disponibil online 15 June, 2023

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2002 - 2

The impact of porosity upon the cathodoluminescence from III-V compounds

Stevens-Kalceff Marion A. , Tighineanu Ion , Langa Sergiu , Foll Helmut

Microscopy and Microanalysis

Vol. 8, Supl. nr. 2 / 2002 / ISSN 1431-9276 / ISSNe 1435-8115

Disponibil online 16 January, 2024

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Formation of tetrahedron-like pores during anodic etching of (100) oriented n-GaAs

Langa Sergiu , Carstensen Juergen , Tighineanu Ion , Christophersen Marc , Foll Helmut

Electrochemical and Solid-State Letters

Vol. 5, / 2002 / ISSN 1099-0062

Disponibil online 16 January, 2024

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2001 - 4

Observation of crossing pores in anodically etched n-gaas

Langa Sergiu , Carstensen Juergen , Christophersen Marc , Foll Helmut , Tighineanu Ion

Applied Physics Letters

Vol. 78, / 2001 / ISSN 0003-6951

Disponibil online 15 June, 2023

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Comparative SEM and cathodoluminescence microanalysis of porous GaP structures

Stevens-Kalceff Marion A. , Langa Sergiu , Tighineanu Ion , Carstensen Juergen , Christophersen Marc , Foll Helmut

Materials Research Society Symposium - Proceedings

Vol. 638. 2001. Warrendale, Pennsylvania. Materials Research Society. 5311-5316.

Disponibil online 22 January, 2024

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Correlation between morphology and cathodoluminescence in porous GaP

Stevens-Kalceff Marion A. , Tighineanu Ion , Langa Sergiu , Foll Helmut , Hartnagel Hans Ludwig

Journal of Applied Physics

Vol. 89, / 2001 / ISSN 0021-8979 / ISSNe 1089-7550

Disponibil online 30 October, 2023

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Self-induced voltage oscillations during anodic etching of n-InP and possible applications for three-dimensional microstructures

Langa Sergiu , Carstensen Juergen , Tighineanu Ion , Christophersen Marc , Foll Helmut

Electrochemical and Solid-State Letters

Vol. 4, / 2001 / ISSN 1099-0062

Disponibil online 16 January, 2024

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2000 - 1

Formation of porous layers with different morphologies during anodic etching of n-InP

Langa Sergiu , Tighineanu Ion , Carstensen Juergen , Christophersen Marc , Foll Helmut

Electrochemical and Solid-State Letters

Vol. 3, / 2000 / ISSN 1099-0062

Disponibil online 16 January, 2024

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