ME 615 Engineering Optics and Optical Techniques
... Nitrogen and oxygen are invisible as they are resonant at UV. Abundant nitrogen oxygen atoms/molecules at high altitude absorb most of UV coming from the outer space including the sun. This will make the survival of living cells on the earth ever possible. … What a God’s trick! The atom or molecul ...
... Nitrogen and oxygen are invisible as they are resonant at UV. Abundant nitrogen oxygen atoms/molecules at high altitude absorb most of UV coming from the outer space including the sun. This will make the survival of living cells on the earth ever possible. … What a God’s trick! The atom or molecul ...
Measurement of the Wavelength by Diffraction Gratings
... weak, in this method the wavelength cannot be measured accurately. By increasing the number of slits to a very large number narrow fringes (lines) of higher intensities can be produced (Fig11). Moreover the fringes are formed far apart from one another. For this purpose Fraunhofer made the first gra ...
... weak, in this method the wavelength cannot be measured accurately. By increasing the number of slits to a very large number narrow fringes (lines) of higher intensities can be produced (Fig11). Moreover the fringes are formed far apart from one another. For this purpose Fraunhofer made the first gra ...
EM Waves and Color
... rainbow. • Sunlight is an example of white light. – White is not a color, but a combination of all colors. ...
... rainbow. • Sunlight is an example of white light. – White is not a color, but a combination of all colors. ...
option a review
... wave along the string. The wave is reflected at the fixed end and as a result a standing wave is set up in the string. The diagram below shows the displacement of the string at time t = 0. The dotted line shows the equilibrium position of the string. ...
... wave along the string. The wave is reflected at the fixed end and as a result a standing wave is set up in the string. The diagram below shows the displacement of the string at time t = 0. The dotted line shows the equilibrium position of the string. ...
Opto-Mechanical Image Quality Degradation of Single Point
... A thorough lens design tolerancing can be done only after a opto-mechanical layout is established. The knife edge method, centered on the mechanical axis, may not provide the correct spot size diameter since the spot could be off by 100 um. To reduce this 100 um offset, a doublet design will reduce ...
... A thorough lens design tolerancing can be done only after a opto-mechanical layout is established. The knife edge method, centered on the mechanical axis, may not provide the correct spot size diameter since the spot could be off by 100 um. To reduce this 100 um offset, a doublet design will reduce ...
Optical Sources
... • Photon striking an excited atom causes emission of a second photon which release two more photons creating an avalanche multiplication. • Amplification &Coherence achieved by (Febry – Perot resonator) • Placing mirrors at either end of the amplifying medium • Providing positive feedback • Amplific ...
... • Photon striking an excited atom causes emission of a second photon which release two more photons creating an avalanche multiplication. • Amplification &Coherence achieved by (Febry – Perot resonator) • Placing mirrors at either end of the amplifying medium • Providing positive feedback • Amplific ...
Unit C POS Checklist
... Knowledge Outcomes: I can: define the photon as a quantum of EMR and calculate its energy. classify the regions of the electromagnetic spectrum by photon energy. describe the photoelectric effect in terms of the intensity and wavelength or frequency of the incident light and surface material. ...
... Knowledge Outcomes: I can: define the photon as a quantum of EMR and calculate its energy. classify the regions of the electromagnetic spectrum by photon energy. describe the photoelectric effect in terms of the intensity and wavelength or frequency of the incident light and surface material. ...
Lab 6: Thin Lenses
... Part 4A: The Human Eye - Focusing an image on the retina (a) Make sure the small plastic lens marked +400 is inside the eye. Put your hand about 50 cm from the eye and illuminate it with a desk lamp. Find the image on the retina. Move your hand until the image is sharp. Describe the image: Is it in ...
... Part 4A: The Human Eye - Focusing an image on the retina (a) Make sure the small plastic lens marked +400 is inside the eye. Put your hand about 50 cm from the eye and illuminate it with a desk lamp. Find the image on the retina. Move your hand until the image is sharp. Describe the image: Is it in ...
Using ray matrices to derive analytical expressions of optical
... not imaged onto a single point. Instead rays at different heights focus at different axial locations. Generalized ray transfer matrices that account for aberration were introduced in Ref. [7]. There, two 2×2 matrices were required, one for the radial component, and another for the azimuthal componen ...
... not imaged onto a single point. Instead rays at different heights focus at different axial locations. Generalized ray transfer matrices that account for aberration were introduced in Ref. [7]. There, two 2×2 matrices were required, one for the radial component, and another for the azimuthal componen ...
Lecture 5
... Fabrication of DNA arrays w. maskless lithography Fabrication of DNA array requires many lithographic steps (equal to number of bp), arrays are made on demand good candidate for maskless lithography ...
... Fabrication of DNA arrays w. maskless lithography Fabrication of DNA array requires many lithographic steps (equal to number of bp), arrays are made on demand good candidate for maskless lithography ...
Retroreflector
A retroreflector (sometimes called a retroflector or cataphote) is a device or surface that reflects light back to its source with a minimum of scattering. In a retroreflector an electromagnetic wavefront is reflected back along a vector that is parallel to but opposite in direction from the wave's source. The angle of incidence at which the device or surface reflects light in this way is greater than zero, unlike a planar mirror, which does this only if the mirror is exactly perpendicular to the wave front, having a zero angle of incidence.