Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"1300 nm"”.
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Nonlinear Dynamics of solitary and optically-injected spin vertical-cavity lasers
… dynamical effects in solitary and injected 1300 nm spin-V(E)CSELs. We report a comprehensive study including theory, based on the Spin Flip Model, and experiments of the stability characteristics of solitary 1300 nm dilute nitride Quantum-Well (QW) spin-VCSELs. Various forms of oscillatory …
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Forward viewing OCT endomicroscopy
… tract. The light source was a MEMS-VCSEL at 1300 nm wavelength running at 300 kHz sweep rate, giving an effective A-line rate of 600 kHz. Data was acquired with a 1.8 GS/s A/D card optically clocked by a maximum fringe frequency of 1 GHz. The optical beam from the probe was scanned by a …
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Development of bismuth doped silica fibres for high power sources & long wavelength generation from ytterbium doped fibre lasers
… fibre lasers at the wavelengths of 915 and 975 nm was examined by measuring excited state absorption in Bi-doped silicate fibres for the wavelength range of 900 -1300 nm. Enhancement in spectroscopic properties of Bi-doped fibre, by H<sub>2</sub>-loading, has been examined.<br/><br/>Bi-doped …
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Endovascular Optical Coherence Tomography Imaging in Cerebrovascular Disease
… light with a wavelength of approximately 1300 nm and excellent spatial resolution of 10µm is achievable. With near histologic resolution, OCT has been described as an optical biopsy modality. The adoption of endovascular OCT imaging in the evolving field of neurointerventional surgery …
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Resonance fluorescence of novel quantum emitters
… The development of light sources emitting around 1300 nm is motivated primarily by the possibility of their use in information communication applications. The results presented in this thesis pave the way towards coherently generated indistinguishable single photons and entangled photon pairs at …
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Practical performance and system capacity of lightwave AM SCM video systems
… as device characteristics improve. For 1550 nm AM SCM systems employing erbium-doped fiber amplifiers (EDFA) operating on the 1300 nm single-mode-fiber of telephone networks, there are additional sources of nonlinear distortion and noise to be considered. The nonlinear distortion produced by …
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Enhancing the Third-Order Nonlinear Optical Properties of Porphyrins and Molecular Wires
… for the characterization of films less than 100 nm thick and applied to ITO films ~25 nm thick. It was found that the third-order nonlinear susceptibility of ITO, χ(3)ITO, is purely electronic at 900 - 1300 nm (11000 - 7700 cm-1) and has a value of (2.16 ± 0.18) x 10-l8 m2 V-2. The χ(3)IT0 value …
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Design and Development of Multiscale Microscopic Imaging Systems for Neuroscience Applications
… microscope utilizing an excitation wavelength of 1300 nm. In a depth comparison study using brain sections, three-photon microscopy showed capability for deep tissue imaging compared to two-photon imaging. We have also designed and developed a mesoscope for in vivo imaging. Mesoscope configuration …
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Seeing the invisible : single molecule microscopy in the shortwave infrared
… lead sulfide (PbS) nanocrystals emitting at 1100 nm and observe fluorescence intermittency (blinking) under continuous excitation. The extracted on/o waiting-time statistics were power-law distributed, with exponents nearly identical to those measured from visible NCs. In addition, we demonstrate …
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Design and optimization of chalcogenide waveguides for supercontinuum generation
… one which can be used for generating a SC with 1300 nm bandwidth pumped at 1550 nm with a low peak power of 25 W. It was observed through successive inclusion of higher-order dispersion coefficients during SC simulations that there is a possibility of obtaining spurious results if the adequate …
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Telecom Wavelength Quantum Devices
… succeeded in interfering O-band (1260—1360 nm) photons from an InAs/GaAs QD with dissimilar photons from a laser, an important mechanism for quantum teleportation. Interference visibilities as high as 60 ± 6 % were recorded, surpassing the 50 % threshold imposed by classical electrodynamics. …