Quantum Optoelectronics

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Gain spectroscopy of solution-based semiconductor nanocrystals in tunable optical microcavities

Advanced Optical Materials Wiley 4:2 (2016) 285-290

Authors:

Robin K Patel, Aurelien AP Trichet, David M Coles, Philip R Dolan, Simon M Fairclough, Marina A Leontiadou, SC Edman Tsang, David J Binks, Eunjoo Jang, Hyosook Jang, Robert A Taylor, Jason M Smith

Abstract:

The lasing behavior of solution-based colloidal quantum dots within an open microcavity is reported. The small size and wide tunability of the cavity provide single mode lasing over a wavelength range in excess of 25 nm. By extracting the lasing threshold and differential gain for the fundamental cavity mode over this spectral range, gain spectroscopy of the quantum dot solution is demonstrated. This new approach could help in the optimization of laser gain media and provides a way of constructing miniature laser arrays for on-chip integration.
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Spectroscopy: Gain Spectroscopy of Solution‐Based Semiconductor Nanocrystals in Tunable Optical Microcavities (Advanced Optical Materials 2/2016)

Advanced Optical Materials Wiley 4:2 (2016) 187-187

Authors:

Robin K Patel, Aurélien AP Trichet, David M Coles, Philip R Dolan, Simon M Fairclough, Marina A Leontiadou, SC Edman Tsang, David J Binks, Eunjoo Jang, Hyosook Jang, Robert A Taylor, Jason M Smith
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Observation of a Biexciton Wigner Molecule by Fractional Optical Aharonov-Bohm Oscillations in a Single Quantum Ring

Nano Letters American Chemical Society (ACS) 16:1 (2016) 27-33

Authors:

Hee Dae Kim, Rin Okuyama, Kwangseuk Kyhm, Mikio Eto, Robert A Taylor, Aurelien L Nicolet, Marek Potemski, Gilles Nogues, Le Si Dang, Ku-Chul Je, Jongsu Kim, Ji-Hoon Kyhm, Kyu Hyoek Yoen, Eun Hye Lee, Jun Young Kim, Il Ki Han, Wonjun Choi, Jindong Song
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Barrier engineering of a photonic molecule in a photonic crystal waveguide

Optics InfoBase Conference Papers (2016)

Authors:

FSF Brossard, BPL Reid, L Nuttall, S Lenon, R Murray, RA Taylor

Abstract:

We experimentally demonstrate fine tuning of the mode splitting of a photonic molecule based on a local perturbation of a photonic crystal waveguide and propose a scheme to achieve parity exchange of the ground state.
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Gain Spectroscopy and Tunable Single Mode Lasing of Solution-Based Quantum Dots and Nanoplatelets Using Tunable Open Microcavities

Optics InfoBase Conference Papers (2016)

Authors:

RK Patel, AAP Trichet, DM Coles, PR Dolan, SM Fairclough, SCE Tsang, MA Leontiadou, DJ Binks, E Jang, H Jang, RA Taylor, S Christodoulou, I Moreels, JM Smith

Abstract:

The lasing threshold of the fundamental cavity mode is measured as a function of wavelength and single mode lasing is demonstrated for colloidal CdSe/CdS quantum dots and nanoplaletes using tunable open microcavities.