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.
Results
Showing 1 to 20 of 4881 for “"Nm"”.
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Photoresist modeling for 365 nm and 257 nm laser photomask lithography and multi-analyte biosensors indexed through shape recognition
… optical pattern generators operating at 365 nm and new tools being developed at 257 nm. Photoresist modeling and optical lithography simulation has been used to provide a deeper understanding of the effects of exposure, developer concentration and bake conditions on the resolution and process …
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Polymers for KrF 248 nm Nanosecond Laser Micromachining
… introduction to the krypton fluoride (KrF) 248 nm nanosecond laser micromachining. Chapter 2 covers preliminary research into the laser micromachining of eleven different kinds of commercial plastic films with different chemical structures and thermal properties. Chapters 3 and 4 discuss the …
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Sub-10-nm lithography with light-ion beams
… spot sizes. In this thesis, I present sub-10-nm lithography at high exposure efficiency using the gas field ionization source (GFIS) with helium and neon ions. I also present preliminary results using the magnetooptical trap ion source (MOTIS) with lithium ions. This work has also challenged …
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Crime and Immigration in Albuquerque, NM — Real or Misperception?
… of non-immigrant neighborhoods in Albuquerque, NM over a four year time period. In this study immigrant neighborhoods are found to have a null or negative association to crime.
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Physics-based modeling of 850 nm Tunnel Junction VCSELs
L'abstract è presente nell'allegato / the abstract is in the attachment
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Templated self-assembly of sub-10 nm quantum dots
… template. We demonstrate this technique at sub-10nm length scales by spin-coating a solution of organically-capped CdZnS semiconducting quantum dots onto nanopatterned grating structures on silicon substrates. We observe the geometric confinement of the quantum dots via physical templating and …
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Achieving sub-10-nm resolution using scanning electron beam lithography
… demand for feature sizes well into the sub-10-nm domain. While SEBL has the highest resolution of nearly any conventional patterning technique available, reliably defining features at these length scales has been a challenge, as well as an interesting scientific problem. In this work I have …
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Superconducting nanowire single-photon detectors and sub-10-nm lithography
… to current record values of 57% at 1550 nm wavelength. We also improved our understanding of SNSPDs by modeling the electro-thermal response of the detector. This model showed that, beyond the initial formation of a photon-induced resistance across the nanowire, Joule heating results in …
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Mode-locked laser diodes for the 750 – 770 nm spectral region
… mode-locked laser diodes in two wavebands – 750 nm and 760 nm. Both chips were based on an AlGaAs multi-quantum-well structure, with slight differences depending on the target spectral band.<br/>At the 760 nm waveband, the laser diodes were passively mode-locked and generated pulses at around 766 …
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Characterization of third order nonlinearities in TiO₂ waveguides at 1550 nm
… does not support two-photon absorption at 1550 nm, has a high refractive index, and a relatively low loss, which allows for high-index-contrast waveguides. The TiO₂ waveguides studied for this thesis were single-mode, with dimensions 200nm x 900nm, deposited on oxidized silicon and overclad with …
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An injection-locked 674 nm laser for Strontium-88 ion trapping
Energy levels of the valence electron of a single trapped ⁸⁸Sr+ ion can be harnessed as an effective qubit for quantum information processing. The qubit transition to a metastable energy state can be stimulated by a laser at a frequency of 444.779044 THz. A laser beam with higher intensity causes …
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Free-standing 100 nm period gratings produced by achromatic holographic lithography
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1995.
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Carbon nanotube assisted formation of sub-50 nm polymeric nano-structures
… novel processing method was developed for sub-50 nm structures by integrating quantum dots (QDs) on patterned polymer substrates. Poly(styrene-alt-maleic anhydride) (PSMa) was prepared by the initiated chemical vapor deposition (iCVD) method, an alternative to spin-on deposition. The sub-50 nm …
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Device design and process technology for sub-100 nm SOI MOSFET's
… to bulk-silicon MOSFET's in the sub-100 nm gate length regime due to improved performance and/or scalability. The SOI layer thickness in SOI MOSFET's can be sized so that the channel is either partially- or fully-depleted-of majority carriers. Partially-depleted (PD) SOI MOSFET's are …
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Sub 2 nm Particle Characterization in Systems with Aerosol Formation and Growth
… by real time measurement of particles below 2 nm in size. Sub 2 nm particles play important roles by acting as seeds for particle growth, ultimately determining the final properties of the generated particles. Tailoring nanoparticle properties requires a thorough understanding and precise …
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