Origins of waveguiding in femtosecond laser-structured LiNbO3

Autor: Andreas Tünnermann, Jonas Burghoff, Stefan Nolte

Publikováno v: Applied Physics A. 89:127-132

Femtosecond laser-induced structural changes in LiNbO3 are studied. Depending on the laser processing parameters two different types of modification are identified and their origin is discussed. Both types of modification can be described within the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bbe02210d9202d97bf73c0d8334cc8c3
https://doi.org/10.1007/s00339-007-4152-0

Thermal effects vs. gain in femtosecond laser written waveguides in neodymium doped fused silica

Autor: Stefan Nolte, Jonas Burghoff, Andreas Tünnermann, Matthias Will, Gabor Matthäus

Publikováno v: Applied Physics A. 83:347-350

The influence of thermal effects in gain measurements of fs laser-written waveguides in actively doped glass is reported for the first time. We show that these effects strongly contribute to the signal enhancement (up to 50% observed). Thus, a new me

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::87d504072ae82918729619f9bb8ae5eb
https://doi.org/10.1007/s00339-006-3560-x

Femtosecond waveguide writing: a new avenue to three-dimensional integrated optics

Autor: Andreas Tuennermann, Matthias Will, Stefan Nolte, Jonas Burghoff

Publikováno v: Applied Physics A: Materials Science & Processing. 77:109-111

Using tightly focussed femtosecond laser pulses, waveguides can be fabricated inside various glasses and crystals. This technique has the potential to generate not only planar but three-dimensional photonic devices. In this paper we present, to the b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5c7355dfb69516289cc29a263619b106
https://doi.org/10.1007/s00339-003-2088-6

Solid-Phase Generation of Silicon Nanoparticles by Ultrafast Laser Irradiation

Autor: Amir H. Nejadmalayeri, Jacky S. W. Mak, Stefan Nolte, P. Scrutton, Jonas Burghoff, Peter R. Herman, Andreas Tünnermann, J. Kaspar, Amr S. Helmy

Publikováno v: Scopus-Elsevier

Ultrashort-laser irradiation of silica-silicon interfaces is presented as new means for 'all solid- phase' formation of high-purity silicon-nanoparticles in a silica host. Compressive stress measured in the silicon substrate is associated with positi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d8a97cb920f4fa76546e66726f1e746
https://doi.org/10.1109/cleo.2007.4452786

Femtosecond laser-written quasi-phase-matched waveguides in lithium niobate

Autor: Stefan Nolte, Antonio Ancona, Jonas Burghoff, Jens Thomas, Matthias Heinrich, Andreas Tünnermann

Publikováno v: Applied physics letters 91 (2007): 151108–151108-3. doi:10.1063/1.2799178
info:cnr-pdr/source/autori:Thomas, J; Heinrich, M; Burghoff, J; Nolte, S; Ancona, A; Tunnermann, A/titolo:Femtosecond laser-written quasi-phase-matched waveguides in lithium niobate/doi:10.1063%2F1.2799178/rivista:Applied physics letters/anno:2007/pagina_da:151108/pagina_a:151108-3/intervallo_pagine:151108–151108-3/volume:91

We report on thermally stable optical waveguides written in periodically poled lithium niobate with a femtosecond laser using a two line approach. Both fundamental and second harmonic light at 1064 and 532 nm are guided with low damping losses. In a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dcdbe842ee77f252156cf6023d915616
http://www.cnr.it/prodotto/i/2023