Continuous Alloy-Composition Spatial Grading and Superbroad Wavelength-Tunable Nanowire Lasers on a Single Chip

Nano Letters ◽  
2009 ◽  
Vol 9 (2) ◽  
pp. 784-788 ◽  
Author(s):  
Anlian Pan ◽  
Weichang Zhou ◽  
Eunice S. P. Leong ◽  
Ruibin Liu ◽  
Alan H. Chin ◽  
...  
Keyword(s):  
Alloy Composition ◽  
Single Chip ◽  
Wavelength Tunable ◽  
Nanowire Lasers

Wavelength Tunable CdSe Nanowire Lasers Based on the Absorption-Emission-Absorption Process

2012 ◽  
Vol 25 (6) ◽  
pp. 833-837 ◽  
Author(s):  
Jiabei Li ◽  
Chao Meng ◽  
Ying Liu ◽  
Xiaoqin Wu ◽  
Yize Lu ◽  
...  
Keyword(s):  
Absorption Process ◽  
Wavelength Tunable ◽  
Nanowire Lasers

scholarly journals SGDBR single-chip wavelength tunable lasers for swept source OCT

2008 ◽  
Author(s):  
Dennis Derickson ◽  
Michael Bernacil ◽  
Andrew DeKelaita ◽  
Ben Maher ◽  
Shane O'Connor ◽  
...  
Keyword(s):  
Tunable Lasers ◽  
Single Chip ◽  
Swept Source ◽  
Wavelength Tunable ◽  
Swept Source Oct

scholarly journals Wavelength Tunable CdSe Nanowire Lasers Based on the Absorption-Emission-Absorption Process (Adv. Mater. 6/2013)

2013 ◽  
Vol 25 (6) ◽  
pp. 832-832 ◽  
Author(s):  
Jiabei Li ◽  
Chao Meng ◽  
Ying Liu ◽  
Xiaoqin Wu ◽  
Yize Lu ◽  
...  
Keyword(s):  
Absorption Process ◽  
Wavelength Tunable ◽  
Nanowire Lasers

Wavelength Tunable Single Nanowire Lasers Based on Surface Plasmon Polariton Enhanced Burstein–Moss Effect

Nano Letters ◽  
2013 ◽  
Vol 13 (11) ◽  
pp. 5336-5343 ◽  
Author(s):  
Xinfeng Liu ◽  
Qing Zhang ◽  
Jing Ngei Yip ◽  
Qihua Xiong ◽  
Tze Chien Sum
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polariton ◽  
Single Nanowire ◽  
Wavelength Tunable ◽  
Plasmon Polariton ◽  
Nanowire Lasers ◽  
Moss Effect

Multi-Color Arrays of III-Nitride Photonic Crystal Nanowire Lasers on a Single Chip

CLEO: 2013 ◽  
2013 ◽  
Author(s):  
Jeremy B. Wright ◽  
Sheng Liu ◽  
George T. Wang ◽  
Qiming Li ◽  
Daniel D. Koleske ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Single Chip ◽  
Nanowire Lasers

Chemical partitioning of elements in Ni-base MC-carbide reinforced eutetic superalloys

1983 ◽  
Vol 41 ◽  
pp. 250-251
Author(s):  
E. F. Koch ◽  
E. L. Hall ◽  
S. W. Yang
Keyword(s):  
Alloy Composition ◽  
Volume Fraction ◽  
Lattice Mismatch ◽  
Turbine Blades ◽  
Eutectic Alloys ◽  
Alloy Matrix ◽  
X Ray ◽  
Gas Turbine Blades ◽  
Analytical Electron ◽  
Analytical Electron Microscope

The plane-front solidified eutectic alloys consisting of aligned tantalum monocarbide fibers in a nickel alloy matrix are currently under consideration for future aircraft and gas turbine blades. The MC fibers provide exceptional strength at high temperatures. In these alloys, the Ni matrix is strengthened by the precipitation of the coherent γ' phase (ordered L12 structure, nominally Ni3Al). The mechanical strength of these materials can be sensitively affected by overall alloy composition, and these strength variations can be due to several factors, including changes in solid solution strength of the γ matrix, changes in they γ' size or morphology, changes in the γ-γ' lattice mismatch or interfacial energy, or changes in the MC morphology, volume fraction, thermal stability, and stoichiometry. In order to differentiate between these various mechanisms, it is necessary to determine the partitioning of elemental additions between the γ,γ', and MC phases. This paper describes the results of such a study using energy dispersive X-ray spectroscopy in the analytical electron microscope.

Influence of Heat Treatments on Microstructures in an Fe-Co-V Alloy

1974 ◽  
Vol 32 ◽  
pp. 512-513
Author(s):  
S. Mahajan ◽  
M. R. Pinnel ◽  
J. E. Bennett
Keyword(s):  
Single Phase ◽  
Alloy Composition ◽  
Supersaturated Solid Solution ◽  
Cell Formation ◽  
Heat Treatments ◽  
Air Cooling ◽  
Iced Brine ◽  
Transmission Electron ◽  
The Matrix ◽  
Bcc Structure

The microstructural changes in an Fe-Co-V alloy (composition by wt.%: 2.97 V, 48.70 Co, 47.34 Fe and balance impurities, such as C, P and Ni) resulting from different heat treatments have been evaluated by optical metallography and transmission electron microscopy. Results indicate that, on air cooling or quenching into iced-brine from the high temperature single phase ϒ (fcc) field, vanadium can be retained in a supersaturated solid solution (α2) which has bcc structure. For the range of cooling rates employed, a portion of the material appears to undergo the γ-α2 transformation massively and the remainder martensitically. Figure 1 shows dislocation topology in a region that may have transformed martensitically. Dislocations are homogeneously distributed throughout the matrix, and there is no evidence for cell formation. The majority of the dislocations project along the projections of <111> vectors onto the (111) plane, implying that they are predominantly of screw character.

NiAl precipitation in Fe-12w/o Cr-5w/o Ni-4w/o Al

1983 ◽  
Vol 41 ◽  
pp. 202-203
Author(s):  
L.E. Murr ◽  
J.S. Dunning ◽  
S. Shankar
Keyword(s):  
Solid Solution ◽  
Stainless Steel ◽  
Stainless Steels ◽  
Alloy Composition ◽  
Chromium Content ◽  
Scale Up ◽  
Optical Metallography ◽  
Property Evaluation ◽  
310 Stainless Steel ◽  
Microstructural Studies

Aluminum additions to conventional 18Cr-8Ni austenitic stainless steel compositions impart excellent resistance to high sulfur environments. However, problems are typically encountered with aluminum additions above about 1% due to embrittlement caused by aluminum in solid solution and the precipitation of NiAl. Consequently, little use has been made of aluminum alloy additions to stainless steels for use in sulfur or H2S environments in the chemical industry, energy conversion or generation, and mineral processing, for example.A research program at the Albany Research Center has concentrated on the development of a wrought alloy composition with as low a chromium content as possible, with the idea of developing a low-chromium substitute for 310 stainless steel (25Cr-20Ni) which is often used in high-sulfur environments. On the basis of workability and microstructural studies involving optical metallography on 100g button ingots soaked at 700°C and air-cooled, a low-alloy composition Fe-12Cr-5Ni-4Al (in wt %) was selected for scale up and property evaluation.

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