Laser-Assisted Dynamics on Metallic Surfaces using
... and high-harmonic generation has opened up a new area of surface science, where these two light sources are the standard tools for the study of ultrafast surface dynamics. Another critical discovery that has made it possible to study high-energy and femtosecond time-scale atomic dynamics is the lase ...
... and high-harmonic generation has opened up a new area of surface science, where these two light sources are the standard tools for the study of ultrafast surface dynamics. Another critical discovery that has made it possible to study high-energy and femtosecond time-scale atomic dynamics is the lase ...
Radial velocity planet detection biases at the stellar rotational period
... We note that the assumption that there is a linear relationship between the activity indicator and the stellar RV signal is a best-case scenario, and typically the relationship is more complex. We then injected planetary RV signals into the stellar activity plus photon noise time series we generated ...
... We note that the assumption that there is a linear relationship between the activity indicator and the stellar RV signal is a best-case scenario, and typically the relationship is more complex. We then injected planetary RV signals into the stellar activity plus photon noise time series we generated ...
Polarimetric technique to study (pre)biological organics in cosmic dust Lev Nagdimunov
... Particles formed via the BCCA model are less compact than those formed via the BPCA model, with typical porosities ranging from 92% to 99.9%. A majority of our simulations utilized the BPCA model because of its larger similarity to Chloroplasts as compared to the BCCA model (Fig. 2). In our study on ...
... Particles formed via the BCCA model are less compact than those formed via the BPCA model, with typical porosities ranging from 92% to 99.9%. A majority of our simulations utilized the BPCA model because of its larger similarity to Chloroplasts as compared to the BCCA model (Fig. 2). In our study on ...
Other photon-lithographies
... White, grey, and black pixels, represented by different deflections of mirror surfaces. • Similar to DMDs (digital micro-mirror devices) that has been widely used in video projectors. • The reflected light pattern is imaged through a de-magnifying optical system onto photo-resist. • Unlike laser dir ...
... White, grey, and black pixels, represented by different deflections of mirror surfaces. • Similar to DMDs (digital micro-mirror devices) that has been widely used in video projectors. • The reflected light pattern is imaged through a de-magnifying optical system onto photo-resist. • Unlike laser dir ...
Asteroseismic Modelling of Solar-like Stars
... through nuclear fusion and emit it in the form of light. Furthermore, most of the elements that the Earth and all the living things are made up of have been produced in the stars. Scientists are in particular interested in understanding what is beyond apparent. However, all the information we have a ...
... through nuclear fusion and emit it in the form of light. Furthermore, most of the elements that the Earth and all the living things are made up of have been produced in the stars. Scientists are in particular interested in understanding what is beyond apparent. However, all the information we have a ...
Physical Optics
... transform and show how this can help in solving difficult diffraction problems. Fourier methods are used very widely in physics and recognise the inter-relation of variables in different dimensions such as “time and frequency” or “space and spatial frequency”. The latter concept will be useful to us ...
... transform and show how this can help in solving difficult diffraction problems. Fourier methods are used very widely in physics and recognise the inter-relation of variables in different dimensions such as “time and frequency” or “space and spatial frequency”. The latter concept will be useful to us ...
Infrared Views of the TW Hya Disk
... A disk w ith silicate grainsofa 1 m icron in size in itssurface layerscan explain thecolorofthescattered lightand theshapeofthem id-infrared spectrum . M uch largergrainsin the disk interiorare necessary to tthe m illim eter-wave spectral energy distribution, and hence grain grow th from an original ...
... A disk w ith silicate grainsofa 1 m icron in size in itssurface layerscan explain thecolorofthescattered lightand theshapeofthem id-infrared spectrum . M uch largergrainsin the disk interiorare necessary to tthe m illim eter-wave spectral energy distribution, and hence grain grow th from an original ...
17 The Atomic Nature of Matter
... bond between atoms to form a molecule. • Two atoms can be held together by the sharing of electrons (a covalent bond). • Atoms also stick to each other when ions of opposite charge are formed, and these ions are held together by simple electric forces (an ionic bond). ...
... bond between atoms to form a molecule. • Two atoms can be held together by the sharing of electrons (a covalent bond). • Atoms also stick to each other when ions of opposite charge are formed, and these ions are held together by simple electric forces (an ionic bond). ...
Measuring the spatiotemporal electric field of
... crossing angle of 0.06 deg; a camera with approximately 106 pixels, each 4.7 m2 in area; a collimating lens with a focal length of 150 mm; and 40 cm long fibers with a mode size of 5.6 m, and we typically build the spectrometer to have a range of 80 nm and a spectral resolution of approximately 0. ...
... crossing angle of 0.06 deg; a camera with approximately 106 pixels, each 4.7 m2 in area; a collimating lens with a focal length of 150 mm; and 40 cm long fibers with a mode size of 5.6 m, and we typically build the spectrometer to have a range of 80 nm and a spectral resolution of approximately 0. ...
The MUSIC of galaxy clusters – I. Baryon properties and scaling
... MultiDark (MD) simulation. We selected all the clusters using criteria based on mass (selecting all the clusters having a total mass larger than 1015 h−1 M ) or on morphology (selecting groups of clusters corresponding to different morphology classes, bullet-like clusters and relaxed clusters). All ...
... MultiDark (MD) simulation. We selected all the clusters using criteria based on mass (selecting all the clusters having a total mass larger than 1015 h−1 M ) or on morphology (selecting groups of clusters corresponding to different morphology classes, bullet-like clusters and relaxed clusters). All ...
Generalized shifts and weak values for polarization components of
... undisturbed by the action of Â; this weak interaction should involve changing the state of a different, pointer state whose motion indicates the weak value, given by Re Aw . We will discuss this connection briefly below; more details of the connection are given in the companion paper to this one, [ ...
... undisturbed by the action of Â; this weak interaction should involve changing the state of a different, pointer state whose motion indicates the weak value, given by Re Aw . We will discuss this connection briefly below; more details of the connection are given in the companion paper to this one, [ ...
A Low Cost Optical Coherence Tomography Machine
... before they hit the mirror. The light hits the spinning mirrors at angle, allowing the different frequencies of light to travel different lengths. The light is then deflected back to the detector and processed (6). The data once again must go through a Fourier transformation as it is processed befor ...
... before they hit the mirror. The light hits the spinning mirrors at angle, allowing the different frequencies of light to travel different lengths. The light is then deflected back to the detector and processed (6). The data once again must go through a Fourier transformation as it is processed befor ...
Project: OBSERVE Handbook 2007
... (stars), a larger light (the Moon), an extremely bright light (the Sun), and a few other wandering lights that did not seem to be fixed on the sphere (the planets). These ancient astronomers believed that this celestial sphere slowly rotated around the Earth and completed one revolution every 24 hou ...
... (stars), a larger light (the Moon), an extremely bright light (the Sun), and a few other wandering lights that did not seem to be fixed on the sphere (the planets). These ancient astronomers believed that this celestial sphere slowly rotated around the Earth and completed one revolution every 24 hou ...
Quantum treatment of neutrino in background matter
... be noted that the total width does not depend on the neutrino energy, meanwhile it is determined by the density of the background matter. The presence of matter can also induce the decay process of the light majoron into the couple of neutrinos (or antineutrinos) [17]: φ → 2ν (or φ → 2ν̃). In a seri ...
... be noted that the total width does not depend on the neutrino energy, meanwhile it is determined by the density of the background matter. The presence of matter can also induce the decay process of the light majoron into the couple of neutrinos (or antineutrinos) [17]: φ → 2ν (or φ → 2ν̃). In a seri ...
How to remove the spurious resonances from ring polymer molecular... Mariana Rossi, Michele Ceriotti, and David E. Manolopoulos
... a combination with a free rotation, the frequency of the stretching peak can even tend to zero as T → 0.42 In this paper, we shall show that both of these problems can be avoided by adopting a method that is halfway between RPMD and CMD. Despite their conceptual differences, practical implementation ...
... a combination with a free rotation, the frequency of the stretching peak can even tend to zero as T → 0.42 In this paper, we shall show that both of these problems can be avoided by adopting a method that is halfway between RPMD and CMD. Despite their conceptual differences, practical implementation ...
chapter 2 photons and atoms
... quantum state of the mode, which is determined by the nature of the light source. Real photon streams often contain numerous propagating modes, each carrying a random number of photons. The probability of detecting a photon in the incremental time interval between t and t + dt is proportional to the ...
... quantum state of the mode, which is determined by the nature of the light source. Real photon streams often contain numerous propagating modes, each carrying a random number of photons. The probability of detecting a photon in the incremental time interval between t and t + dt is proportional to the ...
Fundamentals of Stellar Evolution Theory: Understanding the HRD
... approach the Hayashi line, a convective envelope develops whose base extends inward until it reaches layers in which hydrogen has been converted into helium and carbon into nitrogen via the CNO cycle. As a consequence, the surface abundance of those elements ...
... approach the Hayashi line, a convective envelope develops whose base extends inward until it reaches layers in which hydrogen has been converted into helium and carbon into nitrogen via the CNO cycle. As a consequence, the surface abundance of those elements ...
- Haverford Scholarship
... is provided by the thermal Sunyaev–Zel’dovich (SZ) effect. The SZ effect is the process by which energy is transferred from the hot intracluster medium (ICM) of galaxy clusters to the CMB through inverse Compton scattering (Zel’dovich & Sunyaev 1969; Sunyaev & Zel’dovich 1970). The overall effect is ...
... is provided by the thermal Sunyaev–Zel’dovich (SZ) effect. The SZ effect is the process by which energy is transferred from the hot intracluster medium (ICM) of galaxy clusters to the CMB through inverse Compton scattering (Zel’dovich & Sunyaev 1969; Sunyaev & Zel’dovich 1970). The overall effect is ...
Slide 1
... Plasma: ionized gas, similar to the plasma used for reactive ion etching (RIE). But in regular RIE, only <10% gas molecules are ionized; here all ions are ionized, and to a high ionization state (up to Sn20+). Since the mass of electron is << that of ion, electrons transfer little of its energy to i ...
... Plasma: ionized gas, similar to the plasma used for reactive ion etching (RIE). But in regular RIE, only <10% gas molecules are ionized; here all ions are ionized, and to a high ionization state (up to Sn20+). Since the mass of electron is << that of ion, electrons transfer little of its energy to i ...
Article PDF - IOPscience
... MMT spectrograph with the 300/mm grating and 100 slit, yielding a spectral resolution of 6 8. The slit was aligned along the separation axis of the pairs, as predicted from SDSS imaging by a photometric model consisting of two point sources (see P03), so that the two components were observed simulta ...
... MMT spectrograph with the 300/mm grating and 100 slit, yielding a spectral resolution of 6 8. The slit was aligned along the separation axis of the pairs, as predicted from SDSS imaging by a photometric model consisting of two point sources (see P03), so that the two components were observed simulta ...
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.