Position innerhalb des Seitenbaumes

Start
Institut
Team
Cutuk, Ana

Ana Ćutuk

MSc.

PhD-Student
Institut für Halbleiteroptik und Funktionelle Grenzflächen
Semiconductor Epitaxy Group

Kontakt

+49 711 685 69852
E-Mail

Allmandring 3
70569 Stuttgart
Deutschland
Raum: 1.005

Publikationen

Cutuk, A., Grossmann, M., Jetter, M., & Michler, P. (2023). Membrane saturable absorber mirror (MESAM) in a red-emitting VECSEL for the generation of stable ultrashort pulses. Opt. Express, 31(4), Article 4. https://doi.org/10.1364/OE.476711
- BibTeX
- Link
BibTeX
@article{Cutuk:23, abstract = {We present a new saturable absorber device principle which has the potential for broad spectral range applications. An active region membrane is separated from the substrate and placed on a dielectric end mirror. By combining the absorbing membrane with the dielectric mirror to one device we get a membrane saturable absorber mirror (MESAM) which is similar to the well-known semiconductor saturable absorber mirror (SESAM) without the restriction of the stop-band reflectivity of the distributed Bragg reflector (DBR). Stable mode-locking with the MESAM was achieved in a red-emitting VECSEL at a pump power of 4.25\&\#x2009;W with a pulse duration of 3.06\&\#x2009;ps at 812\&\#x2009;MHz repetition rate. We compare the performance and pulses of both SESAM and MESAM in a z-shaped VECSEL cavity.}, author = {Cutuk, Ana and Grossmann, Marius and Jetter, Michael and Michler, Peter}, doi = {10.1364/OE.476711}, journal = {Opt. Express}, month = {02}, number = 4, pages = {6796--6804}, publisher = {Optica Publishing Group}, title = {Membrane saturable absorber mirror (MESAM) in a red-emitting VECSEL for the generation of stable ultrashort pulses}, url = {https://opg.optica.org/oe/abstract.cfm?URI=oe-31-4-6796}, volume = 31, year = 2023 }
Link
https://opg.optica.org/oe/abstract.cfm?URI=oe-31-4-6796
Bertram, F., Schmidt, G., Kernchen, J., Veit, P., Schürmann, H., Ćutuk, A., Jetter, M., Michler, P., & Christen, J. (2022). Direct Imaging of the Carrier Capture into Individual InP Quantum Dots of a Semiconductor Disk Laser Membrane. ACS Nano, 16(3), Article 3. https://doi.org/10.1021/acsnano.1c11260
- BibTeX
- Link
BibTeX
@article{doi:10.1021/acsnano.1c11260, abstract = { We report on nanoscopic exploration of the luminescence from individual InP quantum dots (QDs) by means of highly spatially resolved cathodoluminescence (CL) spectroscopy directly performed in a scanning transmission electron microscope (STEM). A 7-fold layer stack with high-density InP quantum dots is embedded as an active medium membrane in an external-cavity surface-emitting laser. We characterize the vertical transfer of carriers within the periodic separate confinement heterostructure and determine the capture efficiency of carriers from the cladding layer into the quantum dot layers. Benefiting from the nanoscale resolution of our STEM-CL, we perform single-dot spectroscopy on single isolated QDs in the STEM lamella resolving the details of the excitonic structure of individual quantum dots. Executing highly spatially resolved spectrum line scans within the QD layers, we directly visualize the lateral transport, i.e., the efficient lateral capture of carriers into an individual QD. We observe a characteristic change of the spectral fingerprint during this line scan, while the electron beam is approaching and subsequently receding from the quantum dot position. This directly correlates to the increase and decrease of the numbers of excess carriers reaching the dot, i.e., altering the quantum dot population. The characteristic shift of emission energies visualize the renormalization of the ground-state energy of the single dot, and the intensity ratio of the excitonic recombinations verifies this change of the occupation and the state-filling. }, author = {Bertram, Frank and Schmidt, Gordon and Kernchen, Julie and Veit, Peter and Schürmann, Hannes and Ćutuk, Ana and Jetter, Michael and Michler, Peter and Christen, Jürgen}, doi = {10.1021/acsnano.1c11260}, eprint = {https://doi.org/10.1021/acsnano.1c11260}, journal = {ACS Nano}, note = {PMID: 35258922}, number = 3, pages = {4619-4628}, title = {Direct Imaging of the Carrier Capture into Individual InP Quantum Dots of a Semiconductor Disk Laser Membrane}, url = {https://doi.org/10.1021/acsnano.1c11260 }, volume = 16, year = 2022 }
Link
https://doi.org/10.1021/acsnano.1c11260

Ana Ćutuk

Kontakt

Publikationen

BibTeX

Link

BibTeX

Link

Zielgruppe

Formalia

Services

Organisation

Ana Ćutuk

Kontakt

Publikationen

BibTeX

Link

BibTeX

Link

So erreichen Sie uns

Zielgruppe

Formalia

Services

Organisation