Optical studies of nanoscale magnets promise access to ultrafast magnetization dynamics but are challenging because of limited spatial resolution. We demonstrate that cavity enhancement of the magnetooptical Kerr effect increases the sensitivity in nanomagnetooptics significantly. Magnetization switching in individual single-domain magnets in both far-field and near-field Kerr microscopy is obs...

iii ACKNOWLEDGEMENTS First and foremost, I need to thank my parents and my sister for always encouraging me throughout my long study. I would like to thank my advisor, Dr. Bruno Frazier, for providing me the opportunity to study under his guidance and encouraging me with patience throughout the years. I would also like to thank Dr. for valuable discussion and help regarding patch clamping and p...

We demonstrate a low-threshold microsphere laser on a silicon chip, fabricated from erbium-doped silica sol–gel film. Single-longitudinal mode lasing emission is observed from a 37 μm diameter microsphere cavity with an erbium ion concentration of 2× 1019 cm−3. The measured lasing threshold of the silica microsphere laser is as low as 4.8 μW. (Some figures may appear in colour only in the onlin...

We demonstrate that single photons can be generated from single InAs/GaAs quantum dots in photolithographically defined pillar microcavities. Pillars with a 1.9 microm diameter cavity show a four fold enhancement in the radiative decay rate due to the Purcell effect and a photon collection efficiency into a lens of up to 10%. Measurements of the second order correlation function reveal a greate...

We investigated the stable polarization-pinning properties of substrate emission InGaAs-based 980 nm multi-mode vertical-cavity surface-emitting lasers (VCSELs). For 40 um diameter aperture VCSELs, we introduced 30 μm wide, 9 depth deep trenches that are 15 away from cavity aperture. The VCSELs with trench structure produced higher transverse-electric (TE) polarized light output power, as compa...

This study aimed to determine the effect and best of storage time for first phase herbal chicken eggs at room temperature an average 29,3°C on decrease in egg weight, air cavity diameter, albumen index. research was conducted 7 October--4 November 2020 Animal Production Laboratory, Department Husbandry, Faculty Agriculture, University Lampung. used a completely randomized design method (CRD) wi...

Optical high-finesse cavities are a well-known means to enhance light-matter interactions. Despite much progress in the realization of strongly coupled systems, controlled positioning single solid emitters cavity modes remains challenge. We pursue idea using nanofibers with subwavelength diameter as substrate for such emitters. This paper addresses question how optical influence modes. analyze ...

Introduction: Successful minimally invasive extraction of a broken intramedullary distal piece the nail is very challenging. We herein report simple and reproducible technique cannulated nails using self-made extractor. Case Presentation: present 48-year-old male patient who was admitted to our hospital for internal implant removal, whose right tibial fracture had healed, retained at 12 years. ...

To create cavities when dissolving rock salt, it is most expedient to supply the solvent through nozzles of a perforated pipe in form submerged jets. This article examines physical dissolution cavity with water from stationary nozzle diameter 0.004 m at two constant velocities cross-section. The efficiency dissolution, which has an almost cylindrical shape semi-cylindrical bottom, was analyzed ...