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On-chip single-mode distributed feedback colloidal quantum dot laser under nanosecond pumping

Yunpeng Zhu (UGent) , Weiqiang Xie (UGent) , Suzanne Bisschop (UGent) , Tangi Aubert (UGent) , Edouard Brainis (UGent) , Pieter Geiregat (UGent) , Zeger Hens (UGent) and Dries Van Thourhout (UGent)
(2017) ACS PHOTONICS. 4(10). p.2446-2452
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Center for nano- and biophotonics (NB-Photonics)
Abstract
We report on a hybrid integrated distributed feedback (DFB) laser fabricated using the colloidal quantum dots (QDs)/silicon nitride (SiN) integration platform. The DFB laser is fabricated with a CMOS-compatible process and consists of a waveguide stack in which a QD layer is embedded between two SiN layers to enhance the coupling of the QD to the optical waveguide mode. Following characterization of the intrinsic properties of the CdSe/CdS core/shell QDs using transient absorption spectroscopy, we demonstrate single mode lasing upon nanosecond optical pumping. With a 7 ns pump pulse, the lasing threshold is 270 mu J/cm(2). This result attests to the potential of colloidal QDs as an enabling gain material for integrated SiN photonics, and it showcases the design versatility of hybrid integrated photonics platforms based on colloidal QDs.
Keywords
on-chip, single mode, colloidal quantum dots, distributed feedback laser, nanosecond pumping, OPTICAL-WAVE-GUIDES, AUGER RECOMBINATION, FLASH SYNTHESIS, SILICON, RESONATORS, ABSORPTION, EMISSION, CIRCUITS, SOLIDS, GREEN

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Chicago
Zhu, Yunpeng, Weiqiang Xie, Suzanne Bisschop, Tangi Aubert, Edouard Brainis, Pieter Geiregat, Zeger Hens, and Dries Van Thourhout. 2017. “On-chip Single-mode Distributed Feedback Colloidal Quantum Dot Laser Under Nanosecond Pumping.” Acs Photonics 4 (10): 2446–2452.
APA
Zhu, Yunpeng, Xie, W., Bisschop, S., Aubert, T., Brainis, E., Geiregat, P., Hens, Z., et al. (2017). On-chip single-mode distributed feedback colloidal quantum dot laser under nanosecond pumping. ACS PHOTONICS, 4(10), 2446–2452.
Vancouver
1.
Zhu Y, Xie W, Bisschop S, Aubert T, Brainis E, Geiregat P, et al. On-chip single-mode distributed feedback colloidal quantum dot laser under nanosecond pumping. ACS PHOTONICS. 2017;4(10):2446–52.
MLA
Zhu, Yunpeng, Weiqiang Xie, Suzanne Bisschop, et al. “On-chip Single-mode Distributed Feedback Colloidal Quantum Dot Laser Under Nanosecond Pumping.” ACS PHOTONICS 4.10 (2017): 2446–2452. Print.
@article{8533664,
  abstract     = {We report on a hybrid integrated distributed feedback (DFB) laser fabricated using the colloidal quantum dots (QDs)/silicon nitride (SiN) integration platform. The DFB laser is fabricated with a CMOS-compatible process and consists of a waveguide stack in which a QD layer is embedded between two SiN layers to enhance the coupling of the QD to the optical waveguide mode. Following characterization of the intrinsic properties of the CdSe/CdS core/shell QDs using transient absorption spectroscopy, we demonstrate single mode lasing upon nanosecond optical pumping. With a 7 ns pump pulse, the lasing threshold is 270 mu J/cm(2). This result attests to the potential of colloidal QDs as an enabling gain material for integrated SiN photonics, and it showcases the design versatility of hybrid integrated photonics platforms based on colloidal QDs.},
  author       = {Zhu, Yunpeng and Xie, Weiqiang and Bisschop, Suzanne and Aubert, Tangi and Brainis, Edouard and Geiregat, Pieter and Hens, Zeger and Van Thourhout, Dries},
  issn         = {2330-4022},
  journal      = {ACS PHOTONICS},
  keyword      = {on-chip,single mode,colloidal quantum dots,distributed feedback laser,nanosecond pumping,OPTICAL-WAVE-GUIDES,AUGER RECOMBINATION,FLASH SYNTHESIS,SILICON,RESONATORS,ABSORPTION,EMISSION,CIRCUITS,SOLIDS,GREEN},
  language     = {eng},
  number       = {10},
  pages        = {2446--2452},
  title        = {On-chip single-mode distributed feedback colloidal quantum dot laser under nanosecond pumping},
  url          = {http://dx.doi.org/10.1021/acsphotonics.7b00644},
  volume       = {4},
  year         = {2017},
}

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