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cavity surface

Temperature dependence of spontaneous switch-on and switch-off of laser cavity solitons in vertical-cavity surface-emitting lasers with frequency-selective feedback

Temperature dependence of spontaneous switch-on and switch-off of laser cavity solitons in vertical-cavity surface-emitting lasers with frequency-selective feedback

... Broad-area semiconductor lasers are attractive for high power applications but are limited by numerous instabilities leading to emission on many spatial modes and thus reducing the beam quality and brightness. This is ...

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Femtosecond synchronously mode-locked vertical-external cavity surface-emitting laser

Femtosecond synchronously mode-locked vertical-external cavity surface-emitting laser

... Optically pumped vertical-external cavity surface-emitting lasers (VECSEL) [1] combine the advantages of multiple quantum well semiconductor lasers with optical pumping. Hence, they have the potential to ...

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Effect of Boron Nitride Precipitation at Cavity Surface on Rupture Properties

Effect of Boron Nitride Precipitation at Cavity Surface on Rupture Properties

... creep cavity surface may reduce the surface energy and give the similar acceleration effect on nucleation of creep ...creep cavity surface diffusion remarkably, whereas the precipitation ...

6

Polarization switches in vertical cavity surface emitting lasers

Polarization switches in vertical cavity surface emitting lasers

... Vertical Cavity Surface Emitting Lasers (VCSEL) are a novel class of semiconductor lasers which are having great success in many applications requiring high speed, precision and ...

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Femtosecond synchronously in-well pumped vertical-external-cavity surface-emitting laser

Femtosecond synchronously in-well pumped vertical-external-cavity surface-emitting laser

... different cavity lengths were also investigated. We refer to the optimal cavity position (mismatch 0) as the cavity length, where the highest net gain is seen by the laser pulse and the maximum ...

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Characterization of Vertical Cavity Surface Emitting Lasers With Electrical and Optical Derivative Spectroscopy

Characterization of Vertical Cavity Surface Emitting Lasers With Electrical and Optical Derivative Spectroscopy

... The geometry used for VCSELs was suggested in 1977 for the purpose of overcoming problems such as the initial probe test of devices on wafers, and the integration of lasers into optical circuits due to cavity ...

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Operation of an optical in-well-pumped vertical-external-cavity surface-emitting laser

Operation of an optical in-well-pumped vertical-external-cavity surface-emitting laser

... external cavity, the reflectance and photoluminescence (PL) spectrum of the gain me- dium was recorded for normal incidence, as shown in ...micro- cavity resonances described above results in the main peak ...

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Vector cavity solitons in broad area Vertical-Cavity Surface-Emitting lasers

Vector cavity solitons in broad area Vertical-Cavity Surface-Emitting lasers

... vector cavity solitons in a Vertical-Cavity Surface-Emitting Laser (VCSEL) under linearly polarized optical injection when varying optical injection linear polarization ...the cavity soliton ...

7

Vertical-Cavity Surface-Emitting Lasers for Ultra-High Speed Photonics

Vertical-Cavity Surface-Emitting Lasers for Ultra-High Speed Photonics

... vertical‐cavity surface‐emitting laser (VCSEL) with a transverse‐coupled‐ cavity (TCC) for a larger enhancement of the modulation bandwidth used in ultra‐high‐ speed ...feedback cavity shows a ...

10

Polarization dynamics in vertical-cavity surface emitting lasers

Polarization dynamics in vertical-cavity surface emitting lasers

... longitudinal cavity resonance, the HF-mode will be favored, otherwise the ...the cavity resonance shift with quite different rates with temperature (about ...and cavity resonance are ...

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Design of a LW-VCSEL Optical Source

Design of a LW-VCSEL Optical Source

... vertical cavity surface emitting laser (VCSEL) is a low cost light source with attractive performance characteristics such as low power consumption, high speed capabilities at low currents, and a circular ...

10

Surface Effects on the Diffraction of P Wave by an Arbitrary Shaped Cavity

Surface Effects on the Diffraction of P Wave by an Arbitrary Shaped Cavity

... elliptical cavity surface is more complicated and the im- ages appear multiple asymmetric peaks in Figure ...different surface parameter s , distribution of the DSCF around the elliptical ...

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Aerothermodynamic comparison of two- and three-dimensional rarefied hypersonic cavity flows

Aerothermodynamic comparison of two- and three-dimensional rarefied hypersonic cavity flows

... the cavity is divided into a number of regions, which are subdivided into computational ...that cavity disturbances do not reach the upstream and side boundaries, where freestream conditions are ...the ...

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Quantitative assessment of covariants of root canal treatment efficacy in human teeth

Quantitative assessment of covariants of root canal treatment efficacy in human teeth

... Variability in cutting effect of a file decreases with its wear, according to the trends seen in the data obtained from our experiments. Therefore, having high cutting efficiency seems to have the side effect of ...

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Mixed Convection Heat Transfer in a Lid Driven Cavity with Wavy Bottom Surface

Mixed Convection Heat Transfer in a Lid Driven Cavity with Wavy Bottom Surface

... lid-driven cavity heated from top for various pertinent dimensionless ...the cavity are strongly dependent on the number of undulations, Grashof number and Reynolds ...whole cavity region is occupied ...

10

Benchmark Analysis of Sensors Used in Modern Smart Phones

Benchmark Analysis of Sensors Used in Modern Smart Phones

... Redundancy in green pixels produces a noise free image and captures finer details. Bayer demos icing is a process of translating the Bayer array into a final image which contains full colour information at each pixel. ...

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The first animals : ca  760 million year old sponge like fossils from Namibia

The first animals : ca 760 million year old sponge like fossils from Namibia

... interior cavity enclosed within phosphatised walls of a peripheral labyrinth and pierced by passages leading to the ...internal cavity surrounded by the complexly shaped bounding surfaces of the interior ...

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Tunable  microcavity based  on  macroporous  silicon:  feasibility of fabrication

Tunable microcavity based on macroporous silicon: feasibility of fabrication

... a sufficiently large effect is the initial alignment of the LC director in the structure voids. The highest and reproducible shift of the PBG spectral position can be achieved when the initial homogeneous planar ...

7

Factors affecting temporary cavity generation during gunshot wound formation in animals – new aspects in the light of flow mechanics: a review

Factors affecting temporary cavity generation during gunshot wound formation in animals – new aspects in the light of flow mechanics: a review

... into a low level of energy exchange. In turn, this low level of energy exchange prevents or limits the possibility of generating a temporary cavity. In practice, such flows around bodies are the goal in the ...

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Geometric parameterisation of pelvic bone and cartilage in contact analysis of the natural hip: An initial study

Geometric parameterisation of pelvic bone and cartilage in contact analysis of the natural hip: An initial study

... Parameterised finite element models of the human hip have the potential to allow controlled analysis of the effect of indi- vidual geometric features on the contact mechanics of the joint. However, the challenge lies in ...

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