Abebe Tilahun Tarekegne

Abebe Tilahun Tarekegne

Postdoc

DTU FOTONIK
Institut for Fotonik

Diode Lasers and LED Systems

Danmarks Tekniske Universitet

Ørsteds Plads

Bygning 345A, rum 079

2800 Kgs. Lyngby

Hjemmeside

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2020
 

Dependence of Photoluminescence Emission on Excitation Power and Temperature in Highly Doped 6H-SiC

Tarekegne, Abebe Tilahun ; Shi, Xiaodong ; Gan, Yulin ; Chen, Yunzhong ; Ou, Haiyan
in: Physical Review Applied, vol: 13, issue: 6

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2020     |    DOI: https://doi.org/10.1103/PhysRevApplied.13.064002

2019
  PDF

Temperature-dependent photoluminescence properties of porous fluorescent SiC

Lu, Weifang ; Tarekegne, Abebe T. ; Ou, Yiyu ; Kamiyama, Satoshi ; Ou, Haiyan
in: Scientific Reports, vol: 9, issue: 1

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2019     |    DOI: https://doi.org/10.1038/s41598-019-52871-6

  PDF

Double D-centers related donor-acceptor-pairs emission in fluorescent silicon carbide

Wei, Yi ; Tarekegne, Abebe Tilahun ; Ou, Haiyan
in: Optical Materials Express, vol: 9, issue: 1, pages: 295-303

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2019     |    DOI: https://doi.org/10.1364/OME.9.000295

 

Excitation power dependence of the photoluminescence emission in 6H silicon carbide

Tarekegne, A.T. ; Ou, H.
Presented at:
International Conference on Silicon Carbide and Related Materials 2019

Type: Conference abstract for conference (Peer reviewed)

Status: Published     |    År: 2019

  PDF

Fluorescent silicon carbide for white light source

Ou, Haiyan ; Wei, Yi ; Lin, Li ; Tarekegne, Abebe Tilahun ; Lu, Weifang ; Ou, Yiyu ; Herstrøm, Berit ; Jensen, Flemming ; Liang, Meng (Invited author) ; Liu, Zhiqiang (Invited author) ; Yi, Xiaoyan (Invited author) ; Jakubavicius, Valdas (Invited author) ; Syväjävi, Mikael (Invited author) ; Schuh, Philipp (Invited author) ; Wellmann, Peter (Invited author)
Presented at:
2019 Spring Meeting of the European Materials Research Society

Type: Conference abstract for conference (Peer reviewed)     |     Invited contribution

Status: Published     |    År: 2019

 

Impacts of carrier capture processes in the thermal quenching of photoluminescence in Al–N co-doped SiC

Tarekegne, Abebe T. ; Norrman, K. ; Jokubavicius, V. ; Syväjärvi, M. ; Schuh, P. ; Wellmann, P. ; Ou, H.
in: Applied Physics B, vol: 125, issue: 9

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2019     |    DOI: https://doi.org/10.1007/s00340-019-7279-8

  PDF

Large Area Three-Dimensional Photonic Crystal Membranes: Single-Run Fabrication and Applications with Embedded Planar Defects

Chang, Bingdong ; Zhou, Chen ; Tarekegne, Abebe Tilahun ; Yang, Yuanqing ; Zhao, Ding ; Jensen, Flemming ; Hübner, Jörg ; Jansen, Henri
in: Advanced Optical Materials, vol: 7, issue: 2

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2019     |    DOI: https://doi.org/10.1002/adom.201801176

  PDF

Subcycle Nonlinear Response of Doped 4H Silicon Carbide Revealed by Two-Dimensional Terahertz Spectroscopy

Tarekegne, Abebe Tilahun ; Kaltenecker, Korbinian J. ; Klarskov, Pernille ; Iwaszczuk, Krzysztof ; Lu, Weifang ; Ou, Haiyan ; Norrman, Kion ; Jepsen, Peter Uhd
in: ACS Photonics, vol: 7, issue: 1, pages: 221-231

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2019     |    DOI: https://doi.org/10.1021/acsphotonics.9b01462

  PDF

Terahertz time-domain spectroscopy of zone-folded acoustic phonons in 4H and 6H silicon carbide

Tarekegne, Abebe T. ; Zhou, Binbin ; Kaltenecker, Korbinian ; Iwaszczuk, Krzysztof ; Clark, Stewart ; Jepsen, Peter Uhd
in: Optics Express, vol: 27, issue: 3, pages: 3618-3628

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2019     |    DOI: https://doi.org/10.1364/OE.27.003618

2018
  PDF

Influence of negative- U centers related carrier dynamics on donor-acceptor-pair emission in fluorescent SiC

Wei, Yi ; Tarekegne, Abebe Tilahun ; Ou, Haiyan
in: Journal of Applied Physics, vol: 124, issue: 5

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2018     |    DOI: https://doi.org/10.1063/1.5037167