Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Pieter Neethling"'
Autor:
Thomas Feurer, Erich G. Rohwer, Alexander M. Heidt, Dirk Spangenberg, Ruan Viljoen, Pieter Neethling
Publikováno v:
Viljoen, Ruan; Spangenberg, Dirk; Neethling, Pieter; Heidt, Alexander; Feurer, Thomas; Rohwer, Erich (2021). Targeted single-beam CARS using phase-and-polarization shaping. In: 2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) (p. 1). IEEE 10.1109/CLEO/Europe-EQEC52157.2021.9541823
A single-beam geometry implementation of a Coherent Anti-Stokes Raman Scattering (CARS) setup [1] , is capable of producing well resolved Raman spectra and can be used for CARS microscopy applications. Single-beam CARS (SB-CARS) is an affordable appr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7282470a8f867d812322bbbb2b724a68
Autor:
Thomas Feurer, Alexander M. Heidt, Pieter Neethling, Gurthwin Bosman, Erich G. Rohwer, Dirk Spangenberg, George Dwapanyin
Nonlinear microscopy has evolved over the last few decades to become a powerful tool for imaging and spectroscopic applications in biological sciences. In this study, I$^2$PIE, a novel spectral phase control technique, was implemented in order to com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6bd8e434a4da4a40130f08e08d037d3
http://arxiv.org/abs/2009.07606
http://arxiv.org/abs/2009.07606
Autor:
Thomas Feurer, Alexander M. Heidt, Hans-Martin Frey, Ruan Viljoen, Pieter Neethling, Dirk Spangenberg, Erich G. Rohwer
Publikováno v:
Viljoen, Ruan; Neethling, Pieter; Spangenberg, Dirk; Heidt, Alexander; Frey, Hans-Martin; Feurer, Thomas; Rohwer, Erich (2020). Implementation of temporal ptychography algorithm, i 2 PIE, for improved single-beam coherent anti-Stokes Raman scattering measurements. Journal of the Optical Society of America. B-optical physics, 37(11), A259-A265. Optical Society of America 10.1364/JOSAB.399207
We present an improvement on the signal-to-background of single-beam coherent anti-Stokes Raman scattering (SB-CARS) spectroscopy measurements for systems employing ultrafast supercontinuum sources based on all-normal dispersion photonic crystal fibe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6309cb719fe3b07cbcfaa9eb7b7c8fa8
Publikováno v:
Universal Journal of Physics and Application. 11:176-181
Free-space spectral domain optical coherence tomography has been demonstrated using an 8 mW ultra-bright 850 nm light-emitting diode with a 40 nm spectral width. The system detects longitudinal reflectivity of surface and sub-surface layers of optica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb62216cda9d1631b149be9c0302ec4d
https://doi.org/10.13189/ujpa.2017.110506
https://doi.org/10.13189/ujpa.2017.110506
Publikováno v:
Minerals Engineering. 160:106695
A series of cadmium-, cobalt-, and iron-substituted (0–4 wt%) sphalerite mineral samples were synthesised to test how the presence of these cation substituents alter the crystal structure, surface bonding environment and electronic properties of sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57af1447addf6168c0aef8f2c852e851
https://doi.org/10.1016/j.mineng.2020.106695
https://doi.org/10.1016/j.mineng.2020.106695
Publikováno v:
Journal of the Optical Society of America B. 37:A228
Electric field induced second harmonic (EFISH) generation typically increases with laser intensity. Therefore, EFISH signals generated at the rear S i / S i O 2 interface by a laser beam transmitted through a thin silicon membrane should be much weak
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2960c4e71358425ce8ed65be9c298d24
https://doi.org/10.1364/josab.398314
https://doi.org/10.1364/josab.398314
Publikováno v:
Frontiers in Optics / Laser Science.
The influence of temporal phase control of ultra-broadband femtosecond laser pulses on contrast enhancement in nonlinear imaging and its application in a custom built multimodal microscope, is presented in this study.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::973af68a11f0f37841a52fa99a4f3bbe
https://doi.org/10.1364/fio.2018.jtu2a.34
https://doi.org/10.1364/fio.2018.jtu2a.34
Publikováno v:
Optical Materials. 50:138-143
In this work, we report the femtosecond nonlinear saturable absorption response of synthesized copper phthalocyanine nanocrystals (CPc-NCs)-doped PMMA polymer thin films. The samples were initially characterized by X-ray diffraction (XRD), Fourier tr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6490389905d1d21bbf0382e739b1930
https://doi.org/10.1016/j.optmat.2015.10.013
https://doi.org/10.1016/j.optmat.2015.10.013
Autor:
Erich G. Rohwer, H. Stafast, Pieter Neethling, J. Bergmann, C. M. Steenkamp, Wilfrid I. Ndebeka
Publikováno v:
Applied Physics B. 123
The average transmitted power of a Ti:sapphire femtosecond (fs) laser beam through thin, oxidized silicon (Si) membranes in the 10–30 $$\, \upmu \text{m}$$ thickness range at $$45{^\circ }$$ external angle of incidence at first increases with the i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::18e414b6e683d1d328c436026b07bc7f
https://doi.org/10.1007/s00340-017-6824-6
https://doi.org/10.1007/s00340-017-6824-6
Publikováno v:
Optical Measurement Systems for Industrial Inspection X.
A spectral-domain Optical Coherence Tomography (OCT) surface profilometry prototype has been developed for the purpose of surface metrology of optical elements. The prototype consists of a light source, spectral interferometer, sample fixture and sof
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b38bad780543f428b974a6339d1982a
https://doi.org/10.1117/12.2268064
https://doi.org/10.1117/12.2268064