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Tunable, high-power, solid-state sources for the blue and
Tunable, high-power, solid-state sources for the blue and

... The configuration of the cw SRO (Fig. 1) is similar to that described in Ref. [9]. The cavity is formed in a ring, comprising two concave reflectors, M1 and M2 (r=50 mm), and two plane mirrors, M3 and M4. Limited by physical constraints, the angle of incidence on M1 and M2 is kept <7.5o to minimize ...
SURFACE ELECTROMAGNETIC WAVES IN FINITE
SURFACE ELECTROMAGNETIC WAVES IN FINITE

... The terahertz (THz) regime is that promising slice of the electromagnetic (EM) spectrum that lies between the microwave and the optical, corresponding to frequencies of about 1012 . . . 1013 hertz. Feature of THz spectrum range is that its inherent wavelength is too long to be used in a well-develop ...
Analysis of Optical Systems I
Analysis of Optical Systems I

Ongoing Research Works
Ongoing Research Works

Lecture 3 -- Electromagnetic Principles
Lecture 3 -- Electromagnetic Principles

Spatial amplitude and phase modulation using commercial twisted
Spatial amplitude and phase modulation using commercial twisted

BMS 631 - Lecture 4
BMS 631 - Lecture 4

... – Direction change of a ray of light passing from one transparent medium to another with different optical density. A ray from less to more dense medium is bent perpendicular to the surface, with greater deviation for shorter wavelengths ...
IOSR Journal of Humanities and Social Science (JHSS)
IOSR Journal of Humanities and Social Science (JHSS)

HeNe The Helium-Neon Laser - University of Toronto Physics
HeNe The Helium-Neon Laser - University of Toronto Physics

... A laser is an optical oscillator and thus consists of an amplifier with positive feedback. The amplification in a He-Ne laser arises in the glow discharge while feedback of the optical radiation is provided by two highly reflecting, well aligned mirrors. The conditions necessary for amplification ar ...
Microsoft Word Format - University of Toronto Physics
Microsoft Word Format - University of Toronto Physics

... A laser is an optical oscillator and thus consists of an amplifier with positive feedback. The amplification in a He-Ne laser arises in the glow discharge while feedback of the optical radiation is provided by two highly reflecting, well aligned mirrors. The conditions necessary for amplification ar ...
Optics of Gaussian Beams
Optics of Gaussian Beams

... with Brewster windows the preferred polarization orientation imposes a directional constraint that forms modes of Cartesian (HG) rather than radial (LG) symmetry. The simplest way to observe the HG modes in the laboratory is to place a thin wire inside the laser cavity. The laser will then choose to ...
FarahWaheedaAhmadWahiddinMFKE2007TTTCHAP1
FarahWaheedaAhmadWahiddinMFKE2007TTTCHAP1

... interferences occurring in the MMI area with a large number of multi-modes. Because of its unique properties, such as low insertion loss, large optical bandwidths, compactness, polarization insensitivity, low crosstalk, and excellent fabrication tolerances, the MMI device has many potential applicat ...
P5 Booklet FINAL - Highfields School, Wolverhampton
P5 Booklet FINAL - Highfields School, Wolverhampton

Development of a simulator of a satellite-to
Development of a simulator of a satellite-to

Document
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... To investigate the ATIR spectra of the surface polaritonsc1s21641we used Hitachi-225 and IKS-16 spectrophotometers with NPVO-1 (ATIR) attachments. The preliminary results were published incg1. Splitting of the surface-polariton line in the ATIR spectrum was observed for the sapphire and rutile cryst ...
this PDF file
this PDF file

... proposed laser power back off based on real-time laser intensity variation monitoring and electronic circuit feedback, so as to correct the variation of interference signal resulted from grating process error or environmental fluctuation. The system stability could be improved effectively. In the en ...
Transfer of Angular Momentum to Matter from Acoustical Vortices in
Transfer of Angular Momentum to Matter from Acoustical Vortices in

Distributed Rayleigh scatter dynamic strain sensing above
Distributed Rayleigh scatter dynamic strain sensing above

Study of energy transfer by electron cyclotron resonance in tokamak
Study of energy transfer by electron cyclotron resonance in tokamak

... electron passes through a layer of resonance at a fixed frequency which depends on the magnetic field. This technique is the principle of additional heating (ECRH) and the generation of non-inductive current drive (ECCD) in modern fusion devices. The power absorbed depends on the optical depth which ...
Absorption-induced trapping in an anisotropic
Absorption-induced trapping in an anisotropic

... of atom-photon interactions, the trap location consists of either the locus of points associated with stable orbits or the locations in which force balance occurs. From this classical picture, it is easy to incorporate the effects of laser beam intensity imbalances in determining where a trap will f ...
Optical bistability in a Vertical-Cavity Semiconductor Optical Amplifier
Optical bistability in a Vertical-Cavity Semiconductor Optical Amplifier

tdlitho
tdlitho

Homework Set #2 Due: 1-25-12 Review problem / tutorial on gratings.
Homework Set #2 Due: 1-25-12 Review problem / tutorial on gratings.

Chapter_7_Electronic_Structure_of_Atoms
Chapter_7_Electronic_Structure_of_Atoms

... This is such a small number as to be of no consequence, that is, there is practically no uncertainty in determining the position of the baseball in the macroscopic world. ...
Chapter_7_Electronic_Structure_of_Atoms
Chapter_7_Electronic_Structure_of_Atoms

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Nonlinear optics

Nonlinear optics (NLO) is the branch of optics that describes the behavior of light in nonlinear media, that is, media in which the dielectric polarization P responds nonlinearly to the electric field E of the light. This nonlinearity is typically only observed at very high light intensities (values of the electric field comparable to interatomic electric fields, typically 108 V/m) such as those provided by lasers. Above the Schwinger limit, the vacuum itself is expected to become nonlinear. In nonlinear optics, the superposition principle no longer holds.Nonlinear optics remained unexplored until the discovery of Second harmonic generation shortly after demonstration of the first laser. (Peter Franken et al. at University of Michigan in 1961)
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