Random Semiconductor Lasers: Scattered versus Fabry-Perot Feedback

Kalusniak, Sascha; Wünsche, H.‐J.; Henneberger, F.

doi:10.1103/physrevlett.106.013901

Cited by 24 publications

(30 citation statements)

References 14 publications

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“…The disordered medium in random cavities scatters the electromagnetic field, leading to optical feedback. The constructive interference of the scattered electromagnetic fields appears at particular resonant mode frequencies [12]. The elastic Rayleigh backscattering in optical fibers can provide random distributed optical feedback in random Raman fiber lasers (RFLs) [13,14].…”

Section: Introductionmentioning

confidence: 99%

Raman random laser in one-dimensional system

2014

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The probability of occurrence of random cavities' resonance frequency in the Stokes bandwidth of the Raman active medium can cause Raman laser oscillation in the random structures. Due to the small bandwidth of Raman line shape, the probability of the simultaneous appearance of random cavity resonance frequencies in the cascade Stokes line shapes is small. As a result, the cascade Raman laser oscillation effects on the saturation behavior are negligible. The nonlinear transmission matrix method is employed to determine the statistical behavior of a Raman random laser. Our results showed that the statistical behavior depends on the position of the Stokes line shape relative to the center of the stopband and the edge of the passband of the corresponding nondisorder system.

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Section: Introductionmentioning

confidence: 99%

Raman random laser in one-dimensional system

2014

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“…Afterwards, several basic studies of random lasers (RLs) based on semiconductor powders, polymers containing dyes and metallic particles, liquid crystals mixed with dielectric nanocrystals, fibers doped with rare-earth ions and atomic vapors were reported by various authors. [4][5][6][7][8][9][10][11][12][13][14] On the other hand, several groups reported applications of RLs as remote temperature sensors, coatings on surfaces of arbitrary shapes, medical diagnosis, and laser imaging, among others. 2, [15][16][17][18] One characteristic of the RL demonstrated by Lawandy et al 3 was the bichromatic emission (BCE) that occurs when large dye molecules concentrations are used.…”

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confidence: 99%

Bichromatic random laser from a powder of rhodamine-doped sub-micrometer silica particles

Barbosa-Silva¹,

Silva²,

Brito-Silva³

et al. 2014

Journal of Applied Physics

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Articles you may be interested inTiO2@Silica nanoparticles in a random laser: Strong relationship of silica shell thickness on scattering medium properties and random laser performance Appl. Phys. Lett. 104, 081909 (2014); 10.1063/1.4865092SiO 2 nanoparticles as scatterers for random organic laser action in red fluorescent dye 4-(dicyanomethylene)-2tert-butyl-6(1,1,7,7-tetramethyljulolidyl-9-enyl)-4 H -pyran doped polystyrene films Random lasing emission from a red fluorescent dye doped polystyrene film containing dispersed polystyrene nanoparticles Appl. Phys. Lett. 91, 091115 (2007);We studied the random laser (RL) bichromatic emission (BCE) from a powder consisting of silica particles infiltrated with Rhodamine 640 (Rh640) molecules. The BCE is attributed to Rh640 monomers and dimers. Because of the efficient monomer-dimer energy transfer, we observed RL wavelength switching from % 620 nm to %650 nm and the control of the emitted wavelength was made by changing only the excitation laser intensity. None of external parameters such as excitation laser spot size or radiation detector position was changed as in previous experiments. Two laser thresholds associated either to monomers or dimers were clearly observed. Moreover, an effect analog to frequency-pulling among two coupled oscillators was identified measuring the RL spectra as a function of the excitation laser intensity. A wavelength shift, Dk, was measured between the monomer and dimer resonance wavelengths, changing only the excitation laser intensity. The maximum value of Dk % 16 cm À1 was obtained for laser pulses of 7 ns with 30 lJ. V C 2014 AIP Publishing LLC. [http://dx.doi.org/10.1063/1.4863308] 043515-3Barbosa-Silva et al.

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“…A turnover in this field occurred after the publication by Lawandy et al in 1994 [5], reporting RL emission from a dye solution containing TiO 2 nanoparticles. Since then, RL emission has been observed and studied in different combinations of gain media and scatterers, including, for example, semiconductors [6,7], quantum dots [8], rare earth-doped optical materials [9,10], polymers [11], cold atoms [12], and in biological media such as bone [13] and insect wings [14]. RLs have also been observed in optical fiber geometry, namely, random fiber lasers [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Three-photon excitation of an upconversion random laser in ZnO-on-Si nanostructured films

et al. 2014

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We report the first observation, to our knowledge, of ultraviolet upconversion random laser (RL) emission from ZnO films excited by three near-infrared photons in the femtosecond regime. The nanostructured films of ZnO were fabricated on a silicon substrate using the Plasma Immersion Ion Implantation and Deposition method. The band-to-band excitation process led to RL emission with incoherent feedback, emitting light at ≈390 nm. RL emissions excited by one and two photons were also verified using the same pump geometry. The results are discussed and a comparison with previous studies is presented.

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Random Semiconductor Lasers: Scattered versus Fabry-Perot Feedback

Cited by 24 publications

References 14 publications

Raman random laser in one-dimensional system

Raman random laser in one-dimensional system

Bichromatic random laser from a powder of rhodamine-doped sub-micrometer silica particles

Three-photon excitation of an upconversion random laser in ZnO-on-Si nanostructured films

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