Physics 280/Jones Week 02 In-Class Problems Fall 2014 1
... the second plate, the voltage is increased to stopping potential so that the electron slows down, comes to a stop, and then accelerates back towards the plate, impacting the plate with the same kinetic energy it had at liberation. Surprise! A photon is released. Electrons in an x-ray tube accelerate ...
... the second plate, the voltage is increased to stopping potential so that the electron slows down, comes to a stop, and then accelerates back towards the plate, impacting the plate with the same kinetic energy it had at liberation. Surprise! A photon is released. Electrons in an x-ray tube accelerate ...
Fan, Shanhui - Quantum Electronics Group
... • Enhance light absorption at the DA interface. • Efficiently extract carriers once they are generated. ...
... • Enhance light absorption at the DA interface. • Efficiently extract carriers once they are generated. ...
Extra Credit
... is the angle of incidence and 2 is the angle of refraction. Know that the index of refraction of a medium is the ratio of the speed of light in a vacuum to the speed of light in the medium: n = c/v. Know what total internal reflection is, what the critical angle is, and how to derive Equation (33-4 ...
... is the angle of incidence and 2 is the angle of refraction. Know that the index of refraction of a medium is the ratio of the speed of light in a vacuum to the speed of light in the medium: n = c/v. Know what total internal reflection is, what the critical angle is, and how to derive Equation (33-4 ...
refraction ppt_2010
... • air - flint glass: 18 degrees • flint glass - water: 22 degrees • water - diamond: 12 degrees • diamond - zirconium: 13 degrees • cubic zirconium - air: 30 degrees ...
... • air - flint glass: 18 degrees • flint glass - water: 22 degrees • water - diamond: 12 degrees • diamond - zirconium: 13 degrees • cubic zirconium - air: 30 degrees ...
Refractive index
... When light is refracted into the optically sparser medium, the refractive angle can be 90 degrees for certain incident angle. This incident angle is called critical and for angles of incidence above the critical angle all light is reflected. Such effect is called the total reflection. The value of t ...
... When light is refracted into the optically sparser medium, the refractive angle can be 90 degrees for certain incident angle. This incident angle is called critical and for angles of incidence above the critical angle all light is reflected. Such effect is called the total reflection. The value of t ...
Theory of Extraordinary Optical Transmission through
... we take the square side as the square root of experimental hole area. We consider the general case in which light impinges from a uniform medium 1, into the perforated metal film (region 2) which lies on a substrate (medium 3), where the light is collected. The dielectric constants are e1 in medium ...
... we take the square side as the square root of experimental hole area. We consider the general case in which light impinges from a uniform medium 1, into the perforated metal film (region 2) which lies on a substrate (medium 3), where the light is collected. The dielectric constants are e1 in medium ...
a collection of problems about light rays, refraction and rainbows
... and rainbows get their colour. (i) Estimate the angular width of a rainbow. (ii) Why is a rainbow darkest just outside the blue band? (b) We have considered a drop in the sky at an angle χm to the direction of the Sun’s rays. Drops anywhere on a circle subtending χm to the eye with the Sun shining p ...
... and rainbows get their colour. (i) Estimate the angular width of a rainbow. (ii) Why is a rainbow darkest just outside the blue band? (b) We have considered a drop in the sky at an angle χm to the direction of the Sun’s rays. Drops anywhere on a circle subtending χm to the eye with the Sun shining p ...
Prof. Lan Yang - Microlasers for Nanoscale
... trajectory and lifetime of photons in a way that can be measured and quantified. I will first present a laser-assisted processing method to create Si-chip based optical microresonators with Q-factors in excess of 100 million. Sol-gel process will be introduced as a convenient and efficient method to ...
... trajectory and lifetime of photons in a way that can be measured and quantified. I will first present a laser-assisted processing method to create Si-chip based optical microresonators with Q-factors in excess of 100 million. Sol-gel process will be introduced as a convenient and efficient method to ...
EXPERIMENT 8. Monolayer Characterization: Contact angles
... indices of thin films. In this technique we reflect polarized light from a surface and measure the resulting changes in polarization. Specifically, one measures the ratio, tan ψ, of the fraction of the E-fields of p- and s-polarized light relected from the surface as well as the induced phaseangle d ...
... indices of thin films. In this technique we reflect polarized light from a surface and measure the resulting changes in polarization. Specifically, one measures the ratio, tan ψ, of the fraction of the E-fields of p- and s-polarized light relected from the surface as well as the induced phaseangle d ...
A list of some commonly used formulas in optics
... Angular Deviation of a Prism Angular deviation of a prism depends on the prism angle α, the refractive index, n, and the angle of incidence θi. Minimum deviation occurs when the ray within the prism is normal to the bisector of the prism angle. For small prism angles (optical wedges), the deviation ...
... Angular Deviation of a Prism Angular deviation of a prism depends on the prism angle α, the refractive index, n, and the angle of incidence θi. Minimum deviation occurs when the ray within the prism is normal to the bisector of the prism angle. For small prism angles (optical wedges), the deviation ...
Chapter 7 – Lecture Example Problems 1. A Wavelength of violet
... 3. It requires 280 kJ per mole of Lithium atoms to remove one mole of electrons from the surface of Lithium metal. What minimum wavelength of light is required to do this? ...
... 3. It requires 280 kJ per mole of Lithium atoms to remove one mole of electrons from the surface of Lithium metal. What minimum wavelength of light is required to do this? ...
CHAPTER 3: Light and Telescopes
... light from the two sources creates an interference pattern of bright and dark regions. This shows that light is a wave. ...
... light from the two sources creates an interference pattern of bright and dark regions. This shows that light is a wave. ...
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
... In a Michelson interferometer 150 fringes cross the field of view when the movable mirror is moved through 0.0442mm. Find the wavelength of the light used. ...
... In a Michelson interferometer 150 fringes cross the field of view when the movable mirror is moved through 0.0442mm. Find the wavelength of the light used. ...
X-Ray and Neutron Reflectivity - Physik der molekularen und
... The reflected intensity is then RF = |r|2 . kz and kz0 are the vertical component of, respectively, the incident and transmitted wave. Close to the critical angle kz0 is strongly affected by refraction effects. We find ...
... The reflected intensity is then RF = |r|2 . kz and kz0 are the vertical component of, respectively, the incident and transmitted wave. Close to the critical angle kz0 is strongly affected by refraction effects. We find ...
Reflection and Refraction
... (e.g. from air to water) it will generally experience both reflection and refraction Reflection is the portion of the light that does not penetrate the second medium but bounces off of the surface Refraction is the bending of the portion of the light that does penetrate the surface ...
... (e.g. from air to water) it will generally experience both reflection and refraction Reflection is the portion of the light that does not penetrate the second medium but bounces off of the surface Refraction is the bending of the portion of the light that does penetrate the surface ...
Surface plasmon resonance microscopy
Surface Plasmon Resonance Microscopy (SPRM) is a label free analytical tool that combines the surface plasmon resonance of metallic surfaces with imaging of the metallic surface.The heterogeneity of the refractive index of the metallic surface imparts high contrast images, caused by the shift in the resonance angle.SPRM can achieve a thickness sensitivity of few tenths of nanometer and lateral resolution achieves values of micrometer scale.SPRM is used to characterize surfaces, self-assembled monolayers, multilayer films, metal nanoparticles, oligonucleotides arrays, binding and reduction reactions.Surface Plasmon polaritons are surface electromagnetic waves coupled to oscillating free electrons of a metallic surface that propagate along a metal/dielectric interface.Since polaritons are highly sensitive to small changes in the refractive index of the metallic material,it can be used as a biosensing tool that does not require labeling. SPRM measurements can be made in real-time.Wang and collaborators studied the binding kinetics of membrane proteins in single cells.The experimental setup of an SPRM can be seen in the Figure 1, where an adherent cell is grown on a gold film and placed in an inverted microscope, p-polarized light was used to create the surface plasmons on the gold film and a CCD camera was used to create the SPR image.