Surface plasmon modulated nano-aperture vertical-cavity
surface-emitting laser

Gao, Junhua; Song, Guofeng; Gan, Qiaoqiang; Guo, Baochuan; Chen, L

doi:10.1002/lapl.200610082

Cited by 14 publications

(8 citation statements)

References 19 publications

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“…There have been subsequent theoretical and experimental studies of this aperture -groove structure [10][11][12][13][14] , but there have been very few attempts to integrate this structure into an active device [15][16][17] .…”

Section: Introductionmentioning

confidence: 99%

Small-divergence semiconductor lasers by plasmonic collimation

et al. 2008

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Surface plasmons offer the exciting possibility of improving the functionality of optical devices through the subwavelength manipulation of light. We show that surface plasmons can be used to shape the beams of edge-emitting semiconductor lasers and greatly reduce their large intrinsic beam divergence. Using quantum cascade lasers as a model system, we show that by defining a metallic subwavelength slit and a grating on their facet, a small beam divergence in the laser polarization direction can be achieved. Divergence angles as small as 2.48 8 8 8 8 are obtained, representing a reduction in beam spread by a factor of 25 compared with the original 9.9-mm-wavelength laser used. Despite having a patterned facet, our collimated lasers do not suffer significant reductions in output power ( 100 mW at room temperature). Plasmonic collimation provides a means of efficiently coupling the output of a variety of lasers into optical fibres and waveguides, or to collimate them for applications such as free-space communications, ranging and metrology.

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Section: Introductionmentioning

confidence: 99%

Small-divergence semiconductor lasers by plasmonic collimation

et al. 2008

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“…In small aperture devices the polar ization is closely related to the material anisotropies, but the polarization investigation of large aperture VCSELs is limited by the appearance of much more high order transverse modes being a manifestation of self organization in nonequilibrium systems due to large sizes and current crowding [10,11]. The beam divergence was improved by surface plasmon modu lated nano aperture in small aperture device [12]. 1 The article is published in the original.…”

Section: Introductionmentioning

confidence: 99%

Power and spectra polarization of large-aperture rectangular-shaped vertical-cavity top-emitting lasers

et al. 2012

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“…The first method resorts to novel shaped apertures, such as a C-aperture [9], but a C-aperture produces an asymmetric optical spot that is due to its original asymmetric structure [10 -12]. The second method is to surround an aperture with periodic surface corrugations to excite surface plasmons [13][14][15]. Its shortcoming is that an extended surface wave pattern instead of a single optical spot is obtained [15,16].…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of the performance of an annular aperture and a circular aperture on the same very-small-aperture laser facet

et al. 2007

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A very-small-aperture laser (VSAL) with a circular aperture has a trade-off between the spot size and the output power. A nanometric annular aperture is fabricated to overcome this difficulty. The advantages of the annular aperture are demonstrated by measuring and comparing its near-field intensity distribution with that of a circular aperture. These apertures are fabricated on the same VSAL to ensure that they are under the same illumination conditions. The experimental results indicate that an annular aperture produces a smaller spot size and a higher peak intensity than a circular aperture. The confinement effect and the enhancement effect are attributed to the convergence of the power flow that passes through the annular aperture. The observed enhancement effect decreases when the distance from the VSAL facet is increased, but it does not vanish even when the distance is as large as 3.5 microm.

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Surface plasmon modulated nano-aperture vertical-cavity surface-emitting laser

Cited by 14 publications

References 19 publications

Small-divergence semiconductor lasers by plasmonic collimation

Small-divergence semiconductor lasers by plasmonic collimation

Power and spectra polarization of large-aperture rectangular-shaped vertical-cavity top-emitting lasers

Experimental investigation of the performance of an annular aperture and a circular aperture on the same very-small-aperture laser facet

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