Results 71 to 80 of about 27,564 (284)

Efficient nitrogen-vacancy centers' fluorescence excitation and collection from micrometer-sized diamond by a tapered optical fiber

, 2018
Efficiently excite nitrogen-vacancy (NV) centers in diamond and collect their fluorescence significantly benefit the fiber-optic-based NV sensors.
Arumugam, Sri Ranjini, Balasubramanian, Gopalakrishnan, Chang, Huan-Cheng, Du, Guanxiang, Duan, Dewen, Kavatamane, Vinaya Kumar, Tzeng, Yan-Kai   +6 more
core   +1 more source

Optical humidity sensor based on tapered fiber with multi-walled carbon nanotubes slurry [PDF]

, 2017
We demonstrated performance comparison of optical humidity sensor for bare and Multi-walled carbon nanotubes (MWCNTs) slurry coated tapered optical fiber.
Ahmad, F., Ambran, S., Harun, S. W., Ibrahim, M. H., Irawati, N., Mohamed, H., Rahman, M. A. A.   +6 more
core   +3 more sources

Stepwise fabrication of arbitrary fiber optic tapers

Optics Express, 2012
This work reports a modified flame-brush technique to fabricate fiber tapers with arbitrary waist profiles. The flame-brush approach is used to produce small step reductions in the fiber diameter, or step-tapers, with a constant speed flame brush sweep, while the fiber is uniformly stretched.
Alexandre, Felipe, Guilherme, Espíndola, Hypolito J, Kalinowski, José A S, Lima, Aleksander S, Paterno   +4 more
openaire   +2 more sources

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Nanofiber Fabry-Perot microresonator for non-linear optics and cavity quantum electrodynamics

, 2012
We experimentally realize a Fabry-Perot-type optical microresonator near the cesium D2 line wavelength based on a tapered optical fiber, equipped with two fiber Bragg gratings which enclose a sub-wavelength diameter waist.
A. Rauschenbeutel, C. Wuttke, Colombe, Ding, Fujiwara, Garcia-Fernandez, Goldwin, Le Kien, Le Kien, Le Kien, Le Kien, Le Kien, Liang, Lindner, M. Becker, M. Rothhardt, Morrissey, Nayak, O’Shea, Pöllinger, S. Brückner, Toninelli, Vahala, Vetsch   +23 more
core   +2 more sources

Complete polarization control for a nanofiber waveguide using directional coupling [PDF]

, 2019
Optical nanofiber waveguides are widely used for near-field delivery and measurement of light. Despite their versatility and efficiency, nanofibers have a critical drawback - their inability to maintain light's polarization state on propagation. Here, we
Chormaic, Síle Nic, Lei, Fuchuan, Tkachenko, Georgiy, Ward, Jonathan M.   +3 more
core   +3 more sources

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May, Finn‐Lennard Janthur, Lena Kreie, Michael Müller, Sarah Seffer, Nick Schwarz, Jörg Hermsdorf, Thomas Hassel, Stefan Kaierle, Ludger Overmeyer   +9 more
wiley   +1 more source

Phase shift spectra of a fiber-microsphere system at the single photon level [PDF]

, 2011
We succeeded in measuring phase shift spectra of a microsphere cavity coupled with a tapered fiber using a weak coherent probe light at the single photon level. We utilized a tapered fiber with almost no depolarization and constructed a very stable phase
Agha, Akira Tanaka, Beveratos, Buck, Cai, Chiba, Collot, Dubreuil, Gorodetsky, Griffel, Hideaki Takashima, Hofmann, James, Kiyota Toubaru, Knight, Knight, Knill, Kojima, Konishi, Ladd, Masazumi Fujiwara, Ryo Okamoto, Shigeki Takeuchi, Spillane, Spillane, Takashima, Takashima, Takeshi Asai, Tomita, Totsuka, Turchette, Vollmer   +31 more
core   +2 more sources

Incorporation of Selenium into Sol–Gel‐Derived Bioactive Glass: Influence on Glass Structure, Bioactivity, and its Selective Cytotoxicity

Advanced Engineering Materials, EarlyView.
Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni, Thalita Marcolan Valverde, Talita Martins, Guilherme Mattos Jardim Costa, Alfredo Miranda de Goes, Marcello Rosa Dumont, Eduardo Henrique Martins Nunes, Marivalda de Magalhães Pereira   +7 more
wiley   +1 more source

Observation of simultaneous fast and slow light

, 2008
We present a microresonator-based system capable of simultaneously producing time-advanced and time-delayed pulses. The effect is based on the combination of a sharp spectral feature with two orthogonally-polarized propagating waveguide modes. We include
C. F. Bohren, Chih-Kang Shih, Chris R. Fietz, Gennady Shvets, John W. Robertson, Pablo Bianucci, R. W. Boyd   +6 more
core   +1 more source