Attosecond Transient Absorption Spectroscopy - Max
... Dynamic processes in the microcosm, although generally imperceptible to our senses, affect our every day life. It is, for instance, protein folding, light absorption processes, energy transfer from light-harvesting complexes into the photosynthetic reaction center and a vast variety of chemical reac ...
... Dynamic processes in the microcosm, although generally imperceptible to our senses, affect our every day life. It is, for instance, protein folding, light absorption processes, energy transfer from light-harvesting complexes into the photosynthetic reaction center and a vast variety of chemical reac ...
JOA Vol 1 No. 2 - Apr 2011 - RASNZ Occultation Section
... the early morning. The path covered Poland, Germany, France, Spain and Portugal. The star 2UCAC 39795518 (11.2 mag) was predicted to be occulted for about 6 seconds. The expected drop of 0.9 mag was small but the combined light of asteroid and star (10.6 mag) was detectible for my setup (video camer ...
... the early morning. The path covered Poland, Germany, France, Spain and Portugal. The star 2UCAC 39795518 (11.2 mag) was predicted to be occulted for about 6 seconds. The expected drop of 0.9 mag was small but the combined light of asteroid and star (10.6 mag) was detectible for my setup (video camer ...
Methanol Masers in the NGC6334F Star Forming Region
... • These models suggest the following physical parameters for the masing region : nH2 = 106 cm-3, Tgas = 30K, Tdust = 150K, beaming factor around 10. • These parameters are all very plausible for young highmass star formation regions. • The modeling assumes that the emission from the different transi ...
... • These models suggest the following physical parameters for the masing region : nH2 = 106 cm-3, Tgas = 30K, Tdust = 150K, beaming factor around 10. • These parameters are all very plausible for young highmass star formation regions. • The modeling assumes that the emission from the different transi ...
ANNEX (Manuscrits posteriors a la Comissió de Doctorat de Juliol del...
... Dimethyl substitution of [1]- at the 8, 8’ positions was achieved by B-C cross coupling reaction employing a modified Kumada reaction (Scheme 2). Addition of 5 equivalents of methylmagnesium bromide to a cooled (0°C) solution of Cs[2] in THF, followed by a catalytic amount of [PdCl2(PPh3)2] and CuI ...
... Dimethyl substitution of [1]- at the 8, 8’ positions was achieved by B-C cross coupling reaction employing a modified Kumada reaction (Scheme 2). Addition of 5 equivalents of methylmagnesium bromide to a cooled (0°C) solution of Cs[2] in THF, followed by a catalytic amount of [PdCl2(PPh3)2] and CuI ...
evidence for radiogenic sulfur-32 in type ab presolar
... are J-type carbon stars (Lambert et al. 1986) and born-again AGB stars, such as Sakurai’s object (Asplund et al. 1999). J-type carbon stars, which have low 12 C/13 C ratios, are viable candidate sources of AB grains without enrichments in s-process elements (Hedrosa et al. 2013). Unfortunately, the ...
... are J-type carbon stars (Lambert et al. 1986) and born-again AGB stars, such as Sakurai’s object (Asplund et al. 1999). J-type carbon stars, which have low 12 C/13 C ratios, are viable candidate sources of AB grains without enrichments in s-process elements (Hedrosa et al. 2013). Unfortunately, the ...
High-Q Microresonators as Lasing Elements for Silicon Photonics
... assurance that virtually every single day of my graduate career was well spent in Oskar’s group. I feel privileged to have been one of his first students because of the close friendship that we have formed over the years. Starting our group from empty rooms, each day I tried to pick up as many skills ...
... assurance that virtually every single day of my graduate career was well spent in Oskar’s group. I feel privileged to have been one of his first students because of the close friendship that we have formed over the years. Starting our group from empty rooms, each day I tried to pick up as many skills ...
The Evolution of Protostars - Max-Planck
... How do surveys find protostars and distinguish them from background galaxies, AGB stars, and more evolved star plus disk systems? What is the resulting census of protostars and young stars in nearby molecular clouds? Various identification methods have been employed and are compared in §2, leading t ...
... How do surveys find protostars and distinguish them from background galaxies, AGB stars, and more evolved star plus disk systems? What is the resulting census of protostars and young stars in nearby molecular clouds? Various identification methods have been employed and are compared in §2, leading t ...
Polarization of Light - University of Hawaii
... • Achromatic retarders: made of 2 different materials with opposite variations of index of refraction as a function of wavelength ...
... • Achromatic retarders: made of 2 different materials with opposite variations of index of refraction as a function of wavelength ...
Fabrication of submicrometer 3D structures by one
... a high numerical aperture objective lens as a function of various working conditions, such as propagation of light through mismatched refractive index and/or absorbing media. We demonstrated that when working with refractive index mismatch-free and very low absorption conditions, the light could be ...
... a high numerical aperture objective lens as a function of various working conditions, such as propagation of light through mismatched refractive index and/or absorbing media. We demonstrated that when working with refractive index mismatch-free and very low absorption conditions, the light could be ...
Retarder Principles
... Precision Retarders are supplied with a broadband antireflection coating. Optical transmittance of a Precision Retarder is typically greater than 97%. The retardance d at a wavelength λ that is different from the center wavelength λc is given by: d ≈ dc(λc / λ) where dc is the retardance at λc. This ...
... Precision Retarders are supplied with a broadband antireflection coating. Optical transmittance of a Precision Retarder is typically greater than 97%. The retardance d at a wavelength λ that is different from the center wavelength λc is given by: d ≈ dc(λc / λ) where dc is the retardance at λc. This ...
Distortion free pulse delay system using a pair of
... H. N. Yum, Y. J. Jang, M. E. Kim, and M. S. Shahriar, “Pulse delay via tunable white light cavities using fiber optic resonators,” http://arxiv.org/abs/1012.5482. E. F. Burmeister, D. J. Blumenthal, and J. E. Bowers, “A comparison of optical buffering technologies,” Opt. Switching Networking 5(1), 1 ...
... H. N. Yum, Y. J. Jang, M. E. Kim, and M. S. Shahriar, “Pulse delay via tunable white light cavities using fiber optic resonators,” http://arxiv.org/abs/1012.5482. E. F. Burmeister, D. J. Blumenthal, and J. E. Bowers, “A comparison of optical buffering technologies,” Opt. Switching Networking 5(1), 1 ...
Observations and Theory of Dynamical Triggers for Star Formation
... M16 (Hester et al. 1996), and M8 (Caulet 1997). Other similar regions have been found in the Sco-Cen association (Bertoldi & Jenkins 1992). Some of these neutral regions may be protostellar disks, as argued in the papers on Orion, but Hester et al. (1996) claims that many are evaporating globules ra ...
... M16 (Hester et al. 1996), and M8 (Caulet 1997). Other similar regions have been found in the Sco-Cen association (Bertoldi & Jenkins 1992). Some of these neutral regions may be protostellar disks, as argued in the papers on Orion, but Hester et al. (1996) claims that many are evaporating globules ra ...
ALMA Presentation
... • The ability to detect spectral line emission from CO or CII in a normal galaxy like the Milky Way at a redshift of 3, in less than 24 hours of observation. • The ability to image the gas kinematics in protostars and protoplanetary disks around young Sun-like stars at a distance of 150 pc, enabling ...
... • The ability to detect spectral line emission from CO or CII in a normal galaxy like the Milky Way at a redshift of 3, in less than 24 hours of observation. • The ability to image the gas kinematics in protostars and protoplanetary disks around young Sun-like stars at a distance of 150 pc, enabling ...
Visibility study of graphene multilayer structures Guoquan Teo and
... substrates: quartz and NiFe (60 nm) coated Si wafer. The graphite flakes obtained by mechanical exfoliation were transferred to the substrates which include SLG, BLG and FLG sheets. Subsequently, the contrast and Raman spectra were measured to identify SLG and BLG sheets. After that, a thin layer (~ ...
... substrates: quartz and NiFe (60 nm) coated Si wafer. The graphite flakes obtained by mechanical exfoliation were transferred to the substrates which include SLG, BLG and FLG sheets. Subsequently, the contrast and Raman spectra were measured to identify SLG and BLG sheets. After that, a thin layer (~ ...
Gas Evolution in Disk Galaxies
... are drifting away from Earth with a velocity, v, proportional to their distance, D, from Earth. Hubble’s results together with the cosmological principle suggests that the Universe has a starting point in spacetime. This concept is now known as the big bang theory (Lemaı̂tre 1927). Galaxies evolve w ...
... are drifting away from Earth with a velocity, v, proportional to their distance, D, from Earth. Hubble’s results together with the cosmological principle suggests that the Universe has a starting point in spacetime. This concept is now known as the big bang theory (Lemaı̂tre 1927). Galaxies evolve w ...
Low-temperature surface formation of NH3 and HNCO
... Metal shutters separate the atom beam lines from the main chamber. The atom beam sources as well as the molecular dosing lines in the main chamber can be operated independently. This versatile design allows for the sequential (pre-deposition) or simultaneous (co-deposition) exposure of selected inte ...
... Metal shutters separate the atom beam lines from the main chamber. The atom beam sources as well as the molecular dosing lines in the main chamber can be operated independently. This versatile design allows for the sequential (pre-deposition) or simultaneous (co-deposition) exposure of selected inte ...
Low-temperature surface formation of NH3 and HNCO
... Metal shutters separate the atom beam lines from the main chamber. The atom beam sources as well as the molecular dosing lines in the main chamber can be operated independently. This versatile design allows for the sequential (pre-deposition) or simultaneous (co-deposition) exposure of selected inte ...
... Metal shutters separate the atom beam lines from the main chamber. The atom beam sources as well as the molecular dosing lines in the main chamber can be operated independently. This versatile design allows for the sequential (pre-deposition) or simultaneous (co-deposition) exposure of selected inte ...
DESIGN, FABRICATION AND CHARACTERIZATION OF GUIDED
... techniques, the structural and optical properties of the films are determined. An order-ofmagnitude reduction of the extinction coefficient is achieved. We show that the optical constants can be tuned for different design requirements by controlling the process parameters. For example, we obtain a r ...
... techniques, the structural and optical properties of the films are determined. An order-ofmagnitude reduction of the extinction coefficient is achieved. We show that the optical constants can be tuned for different design requirements by controlling the process parameters. For example, we obtain a r ...
J. Jhaveri, S. Avasthi, G. Man, W. McClain, K. Nagamatsu, J. Schwartz, A. Kahn, J.C. Sturm, "Hole-blocking Crystalline Silicon/Titanium-Oxide Heterojunction with Very Low Interface Recombination Velocity", Proc. IEEE Photovoltaic Spec. Conf. (PVSC), Paper 912, Tampa, FL (JUN 2013).
... of 458.6 – 459.2 eV, while the Ti 2p3/2 peaks for Ti+2 and Ti0 lie in the ranges 454.9 – 455.2 eV and 453.7 – 454.2 eV respectively [9]. The Ti 2p3/2 peak location in Fig 1(b) is at 459.7 eV, demonstrating it corresponds to Ti4+. Additionally, a Ti 2p1/2 peak location is at 465.3 eV, implying a spin ...
... of 458.6 – 459.2 eV, while the Ti 2p3/2 peaks for Ti+2 and Ti0 lie in the ranges 454.9 – 455.2 eV and 453.7 – 454.2 eV respectively [9]. The Ti 2p3/2 peak location in Fig 1(b) is at 459.7 eV, demonstrating it corresponds to Ti4+. Additionally, a Ti 2p1/2 peak location is at 465.3 eV, implying a spin ...
Astronomical spectroscopy
Astronomical spectroscopy is the study of astronomy using the techniques of spectroscopy to measure the spectrum of electromagnetic radiation, including visible light, which radiates from stars and other hot celestial objects. Spectroscopy can be used to derive many properties of distant stars and galaxies, such as their chemical composition, temperature, density, mass, distance, luminosity, and relative motion using Doppler shift measurements.