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Modal Analysis and Controls Laboratory
Modal Analysis and Controls Laboratory

... Sandia National Labs, was manufactured at TPI composites in Warren, RI. The blade was manufactured in two halves, with the High Pressure (HP) and Low Pressure (LP) sides of the blade mated after cure. Defects were cast from resin prior to lay-up and introduced into the spar cap region of the blade a ...
Metal-dielectric-metal plasmonic waveguide devices for
Metal-dielectric-metal plasmonic waveguide devices for

Untitled
Untitled

... a variety of applications including dispersion compensations and spectral gain control (used in optics communications). In terms of fiber optic sensor applications, in-fiber gratings not only have a very high sensitivity but also provide distributed sensing capability due to the easy implementation of ...
Effect of fluoro-polycarbonates containing aliphatic
Effect of fluoro-polycarbonates containing aliphatic

... State Key Lab on Integrated Opto-electronics, Jilin University Region, Changchun 130012, People's Republic of China ...
OPTO - SPIE
OPTO - SPIE

Final report
Final report

... Figure 7: Both graphs show the diameter change in the spool during reeling from the beginning (1), via the middle (2) to the end (3) in spool A and spool B reeled at respectively 5 and 37mm/s…………………………………………………………………………………………...21 Figure 8: Stress-strain graph of the three fibres of the two spools A ...
PDF
PDF

... laser with spectral broadening in a tapered single mode fiber. The Nd:Glass femtosecond laser is much less expensive (~5 times less) than the Ti:Sapphire femtosecond laser and pump. In addition, the Nd:Glass laser is compact (630mm x 320 mm x 160 mm) and can be more easily integrated into a robust a ...
Graphene nano-ribbon waveguides
Graphene nano-ribbon waveguides

Fluorescence of coumarins and xanthenes after two
Fluorescence of coumarins and xanthenes after two

Chapter 3 How Far Can We Extend the Limits of Human Vision?
Chapter 3 How Far Can We Extend the Limits of Human Vision?

Measurement and correction of aberrations in light and electron
Measurement and correction of aberrations in light and electron

Optical Methods for Tympanic Membrane Characterisation Towards Objective Otoscopy in Otitis Media
Optical Methods for Tympanic Membrane Characterisation Towards Objective Otoscopy in Otitis Media

... membranes (TM) of the patient, usually be means of otoscopy. The general aim of this thesis was to develop optical methods that enable quantification of TM characteristics associated with otitis media. Diffuse reflectance spectroscopy was applied to quantify TM erythema using previously suggested er ...
Semiperiodicity versus periodicity for ultra broadband optical
Semiperiodicity versus periodicity for ultra broadband optical

... In this paper, we propose a solution that lies somewhere between full periodicity and randomness, which we are going to refer as semiperiodicity. Semiperiodic grating structures can theoretically excite several modes and mode groups10,11 that are not as weak and broadband as in random structures alt ...
24_(582-588)(완료)E14120 ed-Jin-Kyu Yang.hwp
24_(582-588)(완료)E14120 ed-Jin-Kyu Yang.hwp

- ePrints Soton
- ePrints Soton

... leaky waveguide modes. The incident light is reflected or transmitted into one of several diffraction orders, which depends on the angle of incidence, and grating characteristics, including the refraction indices of materials surrounding the grating. Theoretically, at the wavelength and angle of inc ...
Influence of heterogeneous refractivity on optical wave
Influence of heterogeneous refractivity on optical wave

... scarce. One popular approach for circumventing the problem of sparse meteorological data is to assume horizontal homogeneity (HH approach) based on an observational profile from a single location (Goldhirsh and Dockery 1998). Of course in many locations, such as remote marine regions, even sparse pr ...
Organic Broadband Terahertz Sources and Sensors
Organic Broadband Terahertz Sources and Sensors

... and subpicoscecond photoconductors (LT-GaAs, ionimplanted GaAs, etc.), micro-lithography (allowing fabrication of smaller radiating devices and consequently higher frequency electromagnetic radiation), and ultrashort lasers providing shorter and shorter pulses (down to ∼12 fs, commercially available ...
NGAO NGS WFS design review - Caltech Optical Observatories
NGAO NGS WFS design review - Caltech Optical Observatories

... What’s the implication for the NGS WFS? • Wavefront error on input beam is 1.15 waves RMS (6 waves P-V) @ 600 nm at the extreme (and worst case) field points. This is mostly astigmatism. • As per KAON 685 we know that this corresponds to (y = ar^2 -> 0.69 *10^(-6) = 25 * a -> a = .276*10^(-7); dy/d ...
sensors Chemical Sensing Using Fiber Cavity Ring-Down Spectroscopy
sensors Chemical Sensing Using Fiber Cavity Ring-Down Spectroscopy

... FBG cavity, the fiber loop cavity is simple, rugged and inexpensive. To decrease the roundtrip loss, the fiber ends may be connected using a fusion splicer or a commercial mechanical connector [19], but it is also possible to leave a gap in the loop where samples can be injected. Fiber couplers with ...
MEASUREMENT AND COMPARISON OF REFRACTIVE INDEX OF
MEASUREMENT AND COMPARISON OF REFRACTIVE INDEX OF

Development of a Tm3+-doped Fluoride Glass - DORAS
Development of a Tm3+-doped Fluoride Glass - DORAS

... The development of a fluoride fibre laser for hydrocarbon gas sensing is discussed. The use of a fibre laser as a source for optical sensing has many advantages including small size and ease of adaptability into industrial systems. The fibre laser constructed in this work has an operating wavelength ...
Optical contrast and clarity of graphene on an
Optical contrast and clarity of graphene on an

... The simplest substrate that gives graphene high contrast is thermal oxide on silicon. The trajectory of r on SiO2 / Si as a function of oxide thickness is a perfect circle as the SiO2 thickness increases. The r circle evolves evenly as the SiO2 thickness grows with a period of 183 nm at a wavelength ...
Color-changing and color-tunable photonic bandgap fiber textiles
Color-changing and color-tunable photonic bandgap fiber textiles

... discovered functionalities we highlight real-time color-changing capability of PBG fiber-based textiles with potential applications in dynamic signage and environmentally adaptive coloration. As it stands from their name, photonic textiles integrate light emitting or light processing elements into m ...
The Sampling Pattern Cube
The Sampling Pattern Cube

... Cameras have changed the way we live today. They are integrated into many devices ranging from tablets and mobile phones to vehicles. Digital cameras have become a part of our everyday life aided by the rapidly developing technology; these handy devices are becoming cheaper and are providing even mo ...
diffraction gratings
diffraction gratings

... where LB is the effective exit focal length in mm and dx is the unit interval in mm. See Fig. 1. In a monochromator, LB is the arm length from the focusing mirror to the exit slit or if the grating is concave, from the grating to the exit slit. Linear dispersion, therefore, varies directly with cos ...
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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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