Quantum wires in multidimensional microcavities: Effects of photon dimensionality on emission properties

Constantin, C.; Martinet, E.; Oberli, D. Y.; Kapon, E.; Gayral, B.; Gérard, Jean‐Michel

doi:10.1103/physrevb.66.165306

Cited by 19 publications

(9 citation statements)

References 49 publications

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“…To get this information, previous studies performed reflectivity measurements using a narrowband laser and exciting only a single mode, 12,18 or photoluminescence experiments with a broadband internal light source. [17][18][19][20][21][22][23] A major drawback of reflectivity measurements is that several constraints apply to the coupling of an external beam into a resonant mode of a pillar cavity. When a narrowband laser is used, frequency matching imposes a fine spectral tuning of the source.…”

Section: Introductionmentioning

confidence: 99%

Optical characterization and selective addressing of the resonant modes of a micropillar cavity with a white light beam

et al. 2010

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We have performed white light reflectivity measurements on GaAs/AlAs micropillar cavities with diameters ranging from 1 m up to 20 m. We are able to resolve the spatial field distribution of each cavity mode in real space by scanning a small-sized beam across the top facet of each micropillar. We spectrally resolve distinct transverse-optical cavity modes in reflectivity. Using this procedure we can selectively address a single mode in the multimode micropillar cavity. Calculations for the coupling efficiency of a small-diameter beam to each mode are in very good agreement with our reflectivity measurements.

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Section: Introductionmentioning

confidence: 99%

Optical characterization and selective addressing of the resonant modes of a micropillar cavity with a white light beam

et al. 2010

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“…The "tilted cavity" concept can be applied to all other segments of the laser market and can be used also for detectors, semiconductor optical amplifiers, pumps, switches and for fundamental research purposes, representing essentially a selected-wavelength photonic defect structure realized without any extra processing. It can be suitable, for example, for Purcell effect investigations [17,18]. TC concept can work in optical fibers, in photodetectors, in light-emitting diodes and in many other applications.…”

Section: Discussionmentioning

confidence: 99%

Edge and surface-emitting tilted cavity lasers (Invited Paper)

Ledentsov¹,

Shchukin²,

Kovsh³

et al. 2005

SPIE Proceedings

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The Tilted Cavity (TC) concept has been proposed to combine advantages of edge-and surface-emitting lasers (detectors, amplifiers, switches, etc.). Tilted Cavity Lasers (TCL) enable wavelength-stabilized high-power edge and surface emitters (TCSEL) in low-cost single-epitaxial step design. The concept covers numerous applications including mode-locked TCL for light speed control, dispersion and linewidth engineering, GaN-based light-emitters, electrooptic wavelength tunable devices, and other applications. Presently, wavelength stabilized TC operation is realized between -200 o C and 70 o C in broad TCL diodes with cleaved facets based on quantum dots (QDs). The spectral width is below 0.6 nm in broad area 100 µm-wide-stipe devices. The far fields are: 4 o (lateral) and 42 o (vertical). Wavelength-stabilized 1.16 µm and 1.27 µm edge-emitting QD TCL lasers are demonstrated. Quantum well TCL demonstrate hightemperature operation up to 240 o C with a low threshold, high temperature stability and improved wavelength stability. The tilted cavity approach can also be applied in wavelength-optimized photodetectors, switches, semiconductor optical amplifiers, including multi-channel devices, in optical fibers, in photodetectors, in light-emitting diodes and in many other applications. Moreover, microelectronic devices based on similar tilted angle resonance phenomena in quantum wells and superlattices can be realized in electron-or hole-wavefunction-engineered structures, thus, merging the fields of nanophotonics and nanoelectronics. The tilted cavity concept can be further complimented by lateral patterning and (or) processing of three-dimensional photonic crystal structures further extending horizons of modern optoelectronics.

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“…A multitude of different higher states can be excited by positioning of the pump spot. Exemplarily, the odd Mathieu-mode (1,2) can be seen on the right of Fig. 4, albeit these modes are less confined and exhibit slightly increased lasing thresholds.…”

Section: Mathieu-modes In Circular and Elliptic Holes In A Perforatedmentioning

confidence: 95%

Threshold reduction by multidimensional photonic confinement in metal-organic microcavities

et al. 2014

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Due to their geometry, optical microcavities allow strong confinement of light between the mirrors and promise single mode operation at lowest possible lasing thresholds. Nevertheless, such devices suffer from losses not only due to parasitic absorption of the active or mirror layers, but especially via outcoupling of leaky and waveguided modes within the active layer.In this work, we present an organic microcavity sandwiched between high quality dielectric distributed Bragg reflectors. A highly conductive silver layer of 40 nm thickness is added next to the active layer, leading to the formation of Tamm-Plasmon-Polaritons (TPP), one replacing the original cavity mode and shifting its resonance to the red, another one emerging from the long-wavelength sideband and moving to the blue. To avoid parasitic absorption introduced by such contacts, the silver layer is structured on the micrometer-scale using photolithography, yielding seperated areas supporting either original cavity mode or red shifted TPP-resonances. This separation leads to a strong spatial trapping of the modes to only their resonant regions on the sample and can in turn be exploited to achieve complete three-dimensional confinement of photons.In elliptic holes produced in the metal layer, we observe the formation of Mathieu-Modes, leading to a reduction of the lasing threshold by six times. Facilitating triangular cuts in the silver layer, highly confined standing modes develop in the system, allowing a precise optimization of the spatial mode extension and reducing the threshold even further down to one order of magnitude below the threshold of an unstructured organic cavity.These results show that the introduction of absorptive metals, needed for the realization of an electrically driven laser, can in turn be harnessed to improve the characteristics of the device.

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Quantum wires in multidimensional microcavities: Effects of photon dimensionality on emission properties

Cited by 19 publications

References 49 publications

Optical characterization and selective addressing of the resonant modes of a micropillar cavity with a white light beam

Optical characterization and selective addressing of the resonant modes of a micropillar cavity with a white light beam

Edge and surface-emitting tilted cavity lasers (Invited Paper)

Threshold reduction by multidimensional photonic confinement in metal-organic microcavities

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