scholarly journals CMOS-compatible, piezo-optomechanically tunable photonics for visible wavelengths and cryogenic temperatures

2019 ◽  
Vol 27 (20) ◽  
pp. 28588 ◽  
Author(s):  
P. R. Stanfield ◽  
A. J. Leenheer ◽  
C. P. Michael ◽  
R. Sims ◽  
M. Eichenfield
Keyword(s):  
Cryogenic Temperatures ◽  
Cmos Compatible ◽  
Visible Wavelengths

scholarly journals Silicon nitride CMOS-compatible platform for integrated photonics applications at visible wavelengths

2013 ◽  
Vol 21 (12) ◽  
pp. 14036 ◽  
Author(s):  
Sebastian Romero-García ◽  
Florian Merget ◽  
Frank Zhong ◽  
Hod Finkelstein ◽  
Jeremy Witzens
Keyword(s):  
Silicon Nitride ◽  
Integrated Photonics ◽  
Cmos Compatible ◽  
Visible Wavelengths

CMOS-compatible Si metasurface at visible wavelengths prepared by low-temperature green laser annealing

2018 ◽  
Vol 30 (4) ◽  
pp. 045301
Author(s):  
Jeong Yub Lee ◽  
Yongsung Kim ◽  
Seunghoon Han ◽  
Jaekwan Kim ◽  
Jae Woong Yoon ◽  
...  
Keyword(s):  
Low Temperature ◽  
Laser Annealing ◽  
Green Laser ◽  
Cmos Compatible ◽  
Visible Wavelengths

Detection and Characterization of earth-like Planets

1997 ◽  
Vol 161 ◽  
pp. 299-311 ◽  
Author(s):  
Jean Marie Mariotti ◽  
Alain Léger ◽  
Bertrand Mennesson ◽  
Marc Ollivier
Keyword(s):  
Direct Detection ◽  
Contrast Ratio ◽  
Angular Size ◽  
Physical Nature ◽  
Major Axis ◽  
Infrared Emission ◽  
Space Technology ◽  
Semi Major Axis ◽  
Earth Like Planets ◽  
Visible Wavelengths

AbstractIndirect methods of detection of exo-planets (by radial velocity, astrometry, occultations,...) have revealed recently the first cases of exo-planets, and will in the near future expand our knowledge of these systems. They will provide statistical informations on the dynamical parameters: semi-major axis, eccentricities, inclinations,... But the physical nature of these planets will remain mostly unknown. Only for the larger ones (exo-Jupiters), an estimate of the mass will be accessible. To characterize in more details Earth-like exo-planets, direct detection (i.e., direct observation of photons from the planet) is required. This is a much more challenging observational program. The exo-planets are extremely faint with respect to their star: the contrast ratio is about 10−10at visible wavelengths. Also the angular size of the apparent orbit is small, typically 0.1 second of arc. While the first point calls for observations in the infrared (where the contrast goes up to 10−7) and with a coronograph, the latter implies using an interferometer. Several space projects combining these techniques have been recently proposed. They aim at surveying a few hundreds of nearby single solar-like stars in search for Earth-like planets, and at performing a low resolution spectroscopic analysis of their infrared emission in order to reveal the presence in the atmosphere of the planet of CO H2O and O3. The latter is a good tracer of the presence of oxygen which could be, like on our Earth, released by biological activity. Although extremely ambitious, these projects could be realized using space technology either already available or in development for others missions. They could be built and launched during the first decades on the next century.

Cryogenic atomic force microscopy

1991 ◽  
Vol 49 ◽  
pp. 54-55
Author(s):  
K. A. Fisher ◽  
M. G. L. Gustafsson ◽  
M. B. Shattuck ◽  
J. Clarke
Keyword(s):  
Room Temperature ◽  
Rapid Freezing ◽  
Cryogenic Temperatures ◽  
Soft Or ◽  
Electrically Conductive ◽  
Force Microscopy ◽  
Flexible Molecules ◽  
Advantages And Disadvantages ◽  
Atomic Force ◽  
Chemical Perturbation

The atomic force microscope (AFM) is capable of imaging electrically conductive and non-conductive surfaces at atomic resolution. When used to image biological samples, however, lateral resolution is often limited to nanometer levels, due primarily to AFM tip/sample interactions. Several approaches to immobilize and stabilize soft or flexible molecules for AFM have been examined, notably, tethering coating, and freezing. Although each approach has its advantages and disadvantages, rapid freezing techniques have the special advantage of avoiding chemical perturbation, and minimizing physical disruption of the sample. Scanning with an AFM at cryogenic temperatures has the potential to image frozen biomolecules at high resolution. We have constructed a force microscope capable of operating immersed in liquid n-pentane and have tested its performance at room temperature with carbon and metal-coated samples, and at 143° K with uncoated ferritin and purple membrane (PM).

Pressure Sensor Monolithically Integrating MEMS and CMOS-LSI with CMOS Compatible “Back-end-of-line MEMS processes”

2010 ◽  
Vol 130 (5) ◽  
pp. 170-175
Author(s):  
Tsukasa Fujimori ◽  
Hideaki Takano ◽  
Yuko Hanaoka ◽  
Yasushi Goto
Keyword(s):  
Pressure Sensor ◽  
Cmos Compatible

SANDMEYER SSC INVAR 36

Alloy Digest ◽  
2012 ◽  
Vol 61 (2) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Coefficient Of Thermal Expansion ◽  
Iron Alloy ◽  
Gas Production ◽  
Liquefied Natural Gas ◽  
Cryogenic Temperatures ◽  
Steel Company ◽  
Nickel Iron ◽  
Composite Tooling ◽  
Nickel Iron Alloy

Abstract SSC Invar 36 was developed for use in applications where dimensional stability is essential. It is a nickel-iron alloy with a very low coefficient of thermal expansion from cryogenic temperatures to 200 deg C (390 deg F). It is utilized in aerospace composite tooling and die applications, as well as laser components, and cryogenic components and piping: liquefied natural gas production, storage, and transportation. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on corrosion resistance as well as forming. Filing Code: Fe-158. Producer or source: Sandmeyer Steel Company. Originally published December 2011, revised February 2012.

INCONEL ALLOY X-750

Alloy Digest ◽  
1966 ◽  
Vol 15 (7) ◽  
Keyword(s):  
Gas Turbines ◽  
Rupture Strength ◽  
Low Cost ◽  
High Strength ◽  
Heat Treating ◽  
Chromium Alloy ◽  
Cryogenic Temperatures ◽  
Inconel Alloy ◽  
Nickel Chromium ◽  
Corrosion And Oxidation

Abstract INCONEL alloy X-750 is an age-hardenable, nickel-chromium alloy used for its corrosion and oxidation resistance and high creep rupture strength at temperature up to 1500 F. It also has excellent properties at cryogenic temperatures. It was originally developed for use in gas turbines, but because of its low cost, high strength and weldability it has become the standards choice for a wide variety of applications. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep and fatigue. It also includes information on forming, heat treating, machining, joining, and surface treatment. Filing Code: Ni-115. Producer or source: Huntington Alloy Products Division, An INCO Company.

USS 18-8S and 18-8L

Alloy Digest ◽  
1975 ◽  
Vol 24 (2) ◽  
Keyword(s):  
Fracture Toughness ◽  
High Strength ◽  
Heat Treating ◽  
Cryogenic Temperatures ◽  
United States Steel Corporation ◽  
Temperature Performance ◽  
Aisi Type ◽  
Shock Resistance ◽  
Type 304 ◽  
Excellent Stability

Abstract USS 18-8S (AISI Type 304) and USS 18-8I (AISI Type 304L) are austenitic chromium-nickel steels that are easy to fabricate and weld. They combine high strength with excellent stability and shock resistance, even at cryogenic temperatures. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness, creep, and fatigue. It also includes information on low temperature performance and corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-305. Producer or source: United States Steel Corporation.

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