Zobrazeno 1 - 10
of 233
pro vyhledávání: '"Manfred Eich"'
Autor:
Gnanavel Vaidhyanathan Krishnamurthy, Manohar Chirumamilla, Surya Snata Rout, Kaline P. Furlan, Tobias Krekeler, Martin Ritter, Hans-Werner Becker, Alexander Yu Petrov, Manfred Eich, Michael Störmer
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
Abstract The high-temperature stability of thermal emitters is one of the critical properties of thermophotovoltaic (TPV) systems to obtain high radiative power and conversion efficiencies. W and HfO2 are ideal due to their high melting points and lo
Externí odkaz:
https://doaj.org/article/f68b42314a7c4beb906fa0046e953680
Publikováno v:
APL Photonics, Vol 6, Iss 6, Pp 066108-066108-9 (2021)
An optical pulse asymptotically reaching zero group velocity in tapered waveguides can ultimately stop at a certain position in the taper accompanied by a strong spatial compression. This phenomenon can also be observed in spatiotemporal systems wher
Externí odkaz:
https://doaj.org/article/5c8ba5d52678467daf8249ddd3db6e57
Autor:
Manohar Chirumamilla, Gnanavel Vaidhyanathan Krishnamurthy, Katrin Knopp, Tobias Krekeler, Matthias Graf, Dirk Jalas, Martin Ritter, Michael Störmer, Alexander Yu Petrov, Manfred Eich
Publikováno v:
Scientific Reports, Vol 9, Iss 1, Pp 1-11 (2019)
Abstract High temperature stable selective emitters can significantly increase efficiency and radiative power in thermophotovoltaic (TPV) systems. However, optical properties of structured emitters reported so far degrade at temperatures approaching
Externí odkaz:
https://doaj.org/article/065a0eaa0973406fb5364bc0a135153b
Autor:
Kaline P. Furlan, Emanuel Larsson, Ana Diaz, Mirko Holler, Tobias Krekeler, Martin Ritter, Alexander Yu. Petrov, Manfred Eich, Robert Blick, Gerold A. Schneider, Imke Greving, Robert Zierold, Rolf Janßen
Publikováno v:
Data in Brief, Vol 21, Iss , Pp 1924-1936 (2018)
This data article describes the detailed parameters for synthesizing mullite inverse opal photonic crystals via Atomic Layer Deposition (ALD), as well as the detailed image analysis routine used to interpret the data obtained by the measurement of su
Externí odkaz:
https://doaj.org/article/bd8ab2b547cd4b9d8a62d22c8a5150e4
Autor:
Lena Simone Fohrmann, Gerrit Sommer, Giampaolo Pitruzzello, Thomas F. Krauss, Alexander Yu. Petrov, Manfred Eich
Publikováno v:
APL Photonics, Vol 5, Iss 12, Pp 129901-129901-2 (2020)
Externí odkaz:
https://doaj.org/article/23efae08fd4b44d4abed03c42ff1e54b
Publikováno v:
APL Photonics, Vol 5, Iss 8, Pp 080801-080801-9 (2020)
We discuss how dynamic light stopping and pulse time reversal can be implemented in dispersive waveguides via indirect photonic transitions induced by moving refractive index fronts. The previous concepts of light stopping/time reversal either requir
Externí odkaz:
https://doaj.org/article/cd55e20b6cca4475aaacba74d47753d9
Publikováno v:
APL Photonics, Vol 5, Iss 6, Pp 060901-060901-14 (2020)
Structural coloration, which is based on spectrally selective scattering from optical structures, has recently attracted wide attention as a replacement of pigment colors based on the selective light absorption in chemical structures. Structural colo
Externí odkaz:
https://doaj.org/article/0bac70922cc247b08b15c24def452d51
Autor:
Mahmoud A. Gaafar, Dirk Jalas, Liam O’Faolain, Juntao Li, Thomas F. Krauss, Alexander Yu. Petrov, Manfred Eich
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-10 (2018)
Here the authors present an experimental demonstration of a free carrier front induced intraband indirect photonic transition and show how the waveguide dispersion can be exploited to decrease the required free carrier concentration for substantial r
Externí odkaz:
https://doaj.org/article/48ddf95c59ae41d89db53db2f6d9e540
Autor:
Guoliang Shang, Yen Häntsch, Kaline Pagnan Furlan, Rolf Janßen, Gerold A. Schneider, Alexander Petrov, Manfred Eich
Publikováno v:
APL Photonics, Vol 4, Iss 4, Pp 046101-046101-7 (2019)
Angle independent non-absorbing spectral filters are required for many applications such as sunscreens, structural colors, photovoltaics, and radiative cooling. One of the promising and simple to manufacture structures is based on the disordered arra
Externí odkaz:
https://doaj.org/article/ce3c494bf7834d6e85d21753ba4e9a43
Autor:
Martin Waleczek, Jolien Dendooven, Pavel Dyachenko, Alexander Y. Petrov, Manfred Eich, Robert H. Blick, Christophe Detavernier, Kornelius Nielsch, Kaline P. Furlan, Robert Zierold
Publikováno v:
Nanomaterials, Vol 11, Iss 4, p 1053 (2021)
TiO2 thin films deposited by atomic layer deposition (ALD) at low temperatures (2 parts is known to alter phase transitions and to stabilize crystalline phases. In this work, we have developed low-temperature ALD super-cycles to introduce Al2O3 into
Externí odkaz:
https://doaj.org/article/09548fbaf0d04d6b9f4f1fd4f8da8aac