distributed feedback laser emission
Nanoimprinted distributed feedback lasers of solution processed hybrid perovskites
... spontaneous emission (ASE) bandwidth (5-10 ...communications) laser action at user-defined wavelengths and single- mode operation is very desirable ...
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InAs/GaAs Quantum Dot Dual Mode Distributed Feedback Laser Towards Large Tuning Range Continuous Wave Terahertz Application
... narrow emission spectrum and high thermal stability, the LC-DFB lasers have also dem- onstrated advantages for generating CW THz ...simultaneous emission of two modes are very attractive for fabricating THz ...
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Stable Single Mode Operation of Distributed Feedback Quantum Cascade Laser by Optimized Reflectivity Facet Coatings
... the emission spectra of the coating DFB laser at different heat sink temperatures from 20 to 90 ...mode emission is observed among the entire investigated temperature range with a side-mode ...
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Sample Grating Distributed Feedback Quantum Cascade Laser Array
... [1], distributed feedback quantum cascade laser (DFB-QCL) featuring narrow linewidth, high power, and simple fabrication process become extremely useful for spectroscopy [2, ...mode emission, ...
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Measurement of the phase and intensity profile of surface plasmon laser emission
... vortex-vector laser beams in both near and far fi ...the feedback mechanisms and coherence of the laser and shows that our SP laser operates in a phase- slip mode instead of a pure dark ...for ...
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Single-mode surface-emitting concentric-circular-grating terahertz quantum cascade lasers
... second-order distributed feedback ...surface emission for efficient and directional optical power ...THz emission and without remarkably sacrificing the maximum temperature operation ...light ...
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Intensity profile in a distributed feedback fibre laser characterised by a green fluorescence scanning technique
... in distributed feedback (DFB) semiconductor lasers are of considerable concern, as they can lead to single mode instability through spatial hole burning effects ...DFB laser [4], the nonuniformity of ...
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Carrier generation using a dual-frequency distributed feedback waveguide laser for phased array antenna (PAA)
... the laser emission was collected through the 1030 nm port, which also contained an isolator to further prevent optical back-reflections into the laser cavity (shown in ...
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Laser chemosensor with rapid responsivity and inherent memory based on a polymer of intrinsic microporosity
... a laser sensor to detect nitroaromatic-based explosive ...spontaneous emission and variable-angle ellipsometry, ...second-order distributed feedback PIM-1 laser sensor was fabricated ...
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An oligofluorene truxene based distributed feedback laser for biosensing applications
... DFB laser sensors (Lu et ...the laser mode and to an enhancement of the evanescent fi eld interaction with the laser surface and hence ...DFB laser sensor and that the sensor surface is ...
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Random laser action in organic film during the photopolymerization process
... by laser dyes or non linear optical ...a distributed feedback laser [7]. This laser has been achieved in two ...a laser dye to achieve laser ...experiment laser ...
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Titanium doped sapphire crystal excited by diode pumped solid state laser
... Nonlinear optical conversion is commonly used to produce visible radiation from solid state laser operating in the near IR [1], The Potassium Tantalum Phosphate KTP crystal is usually used for the conversion to ...
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Measurement of the emission spectrum of a semiconductor laser using laser-feedback interferometry
... weak laser modes that appear in the LFI spectra (at ...the laser emission ...measuring emission spectra when the laser is operating close to ...
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Laser Ablated Carbon Nanodots for Light Emission
... through laser ablation in solution is limited by a lack of information regarding the correlation of the physical parameters that affects the size and optical ...of laser wavelength and power on the ...
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Distributed Transmit Beamforming without Phase Feedback
... popular distributed space-time code [1] and space- frequency code approaches [2] are mainly focused on the enhancement of reliability but not this kind of large-scale fading occurring over long ...
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Analysis of efficiency and misalignment tolerances in laser diode pigtailing using single ball lens
... 1550nm laser diode to a single mode ...diode laser at the free end of the fibers to determine coupling ...simultaneous laser beams from Nd: YAG ...The laser pulse energy and duration as well ...
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Simon, Thomas (2017): Coherent lifetimes of excitons and plexcitons in organic-inorganic nanostructures. Dissertation, LMU München: Fakultät für Physik
... Zwei unterschiedliche kohärente Prozesse wurden mit den Strukturen untersucht: Bei dem ersten handelte es sich um Rabi Oszillationen zwischen den Anregungen auf dem Farbstoff in Form von Exzitonen und der Polarisation ...
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Spectroscopic and Radiative Properties of Several Nd3+ Ions in Borate Glass System
... the laser medium affected by the concentration of Nd 3+ and glass structure as host matrix which the ion in the host matrix have the transition energy level vary with the Nd 3+ ...
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Lasers – an asset to endodontics!!!
... medium lasers used in dentistry. Others are solid state semiconductor wafers which are made with multiple layers of metals such as indium, gallium, aluminium, and arsenic or solid rods of garnet crystal with various ...
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NONLINEAR ABSORPTION OF RUBY LASER LIGHT BY MOLECULAR POTASSIUM VAPOR
... IN the investigation of the Stark effect in atomic- potassium vapor under the influence of the electric field of ruby-laser radiation, we observed that the laser emission[r] ...
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