Results 31 to 40 of about 488,564 (288)
A theory of longitudinal modes in semiconductor lasers [PDF]
, 1982 A theory of longitudinal mode lasing spectrum of semiconductor lasers is developed which takes into account the nonuniform carrier and photon distributions and local gain spectrum shifts inside lasers with low end mirror reflectivities.
Lau, Kam Y., Yariv, Amnon
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Scientific Reports, 2022 We propose an efficient method to determine the effective refractive index of step-index optical fibers from the visible to the mid-IR and thus allowing to infer their dispersive properties over a broad spectral range.
Tommy Boilard +2 more
doaj +1 more source
Visible submicron microdisk lasers [PDF]
, 2007 The authors describe the performance of submicron microdisk lasers fabricated within InGaP/InGaAlP quantum well material working at room temperature. The smallest lasers, with diameters of approximately 600 nm, feature ultrasmall mode volumes and exhibit
Hong, Ting +5 more
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Ultrafast Fiber Laser Emitting at 2.8 µm Based on a SESAM and a Broadband FBG
Photonics, 2023 Ultrafast mid-infrared fiber lasers have been intensely studied in the last decade for the generation of high harmonics, molecular spectroscopy, material processing and remote sensing.
Pascal Paradis +4 more
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Suppression of beating noise of narrow-linewidth erbium-doped fiber ring lasers by use of a semiconductor optical amplifier [PDF]
, 2003 Beating noise in narrow-linewidth erbium-doped fiber ring lasers puts severe limitations on applications of the lasers. We demonstrate the suppression of beating noise in fiber ring lasers by using a semiconductor optical amplifier in the laser cavity ...
Baby, Varghese +3 more
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Analysis of Carbon Contents and Heavy Metals in Coal Samples Using Calibration-free LIBS Technique
Journal of Spectroscopy, 2022 We report a compositional analysis of four coal samples collected from different mines in Pakistan and one Chinese brand. The coal samples were pelletized in the form of a disc and irradiated with a focused laser beam of fundamental (1064 nm) and second (
Muhammad Aamir Israr +3 more
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Mode stabilized terrace InGaAsP lasers on semi-insulating InP [PDF]
, 1982 Mode stabilized terrace InGaAsP lasers have been fabricated on semi-insulating InP substrates. The fabrication involves a selective, single-step liquid phase epitaxial growth process, and a lateral Zn diffusion.
Chen, T. R. +5 more
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Nanomaterials, 2021 We present hybrid nanomaterial architectures, consisting of carbon nanowalls (CNW) templates decorated with tungsten oxide nanoparticles, synthesized using a mechanism based on tungsten oxide sublimation, vapor transport, followed by vapor condensation ...
Lavinia Gabriela Carpen +6 more
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Multi-stabilities and symmetry-broken one-colour and two-colour states in closely coupled single-mode lasers [PDF]
, 2014 We theoretically investigate the dynamics of two mutually coupled identical single-mode semi-conductor lasers. For small separation and large coupling between the lasers, symmetry-broken one-colour states are shown to be stable.
Amann, Andreas +2 more
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Seminars in Plastic Surgery, 2007 In a society desiring images of beauty and youthfulness, the world of cutaneous surgery offers the gifts of facial rejuvenation for those determined to combat the signs of aging. With the development of novel laser and plasma technology, pigmentary changes, scarring, and wrinkles can be conquered providing smoother, healthier, younger-looking skin ...
Joseph P, Janik +3 more
openaire +2 more sources