Wavelength

The Diffraction and Interference Model: Single and Double Slits shows diffraction and interference patterns from a single slit, double sources and double slits. The user can change the source wavelength, slit width, separation and distance between slit and screen. The Diffraction and... Platforms: Mac

The Single-Slit Diffraction model simulates the diffraction pattern of light as it travels through a slit to a screen. The diffraction pattern is due to the difference in path length of the light from different parts of the slit as the light from the slit travels to the screen. The intensity of... Platforms: Mac

The Stellar Blackbody Radiation Curves model simulates the blackbody radiation curve of stars and how this leads to the observed color and luminosity of the star. If a star can be treated as a blackbody, the blackbody radiation curve of the star, the power density per area (or intensity) per... Platforms: Mac

This applet shows multiple beam interferences from a parallel dielectric thin film. The applet lets you study the evolution of reflection and refraction factors when the index of refraction and the absorption of the film and the substrate are modified. These can be constant or have a wavelength... Platforms: Mac

Talking about a color generally involves describing its hue. Also known as chroma, this characteristic of color is what differentiates a red from a green from a blue. Each specific hue corresponds to a spectral wavelength and will also be represented in the COLORCUBE. These fins are tonal... Platforms: Windows

KOJAC project contains Java libraries and applications for optical raytracing. KOJAC is a set of Java classes implementing optical elements and optics laws in order to build and simulate optical systems. It is also aimed at being a demonstrator of optics for educational purposes. Optical... Platforms: *nix

p3d is a general data-reduction tool that is intended to be used with data of fiber-fed integral field spectrographs (IFSs). This tool can be useful for people who have access to astronomical data of such an instrument. Data-reduction tasks, which are performed by p3d, convert raw data of CCD... Platforms: Windows

p3d is a general data-reduction tool that is intended to be used with data of fiber-fed integral field spectrographs (IFSs). This tool can be useful for people who have access to astronomical data of such an instrument. Data-reduction tasks, which are performed by p3d, convert raw data of CCD... Platforms: Mac, Linux

ColorApplet is designed as a Qt-based applet that can be used for color conversion between different spaces. Among this spaces we can find XYZ, xyz, L*U*V*, LAB (Hunter), L*A*B*, RGB, sRGB, Adobe RGB, YIQ and Y'UV. The program gives the color for a Black Body at a given temperature. ColorApplet... Platforms: Windows

The speed of light is generally rounded down to 186,000 miles per second. In exact terms it is 299,792,458 m/s (meters per second - that is equal to 186, 287.49 miles per second). It takes 8 minutes 17 seconds for light to travel from the Sun's surface to the Earth. Red, green and blue are the... Platforms: Windows

This program can be used to acquire data from Agilent 86141B optical spectrum analyzer using an Agilent 82357A USB/GPIB convertor.The program will require the Primary address of the Optical spectrum analyzer ,start wavelength,stop wavelength,sensitivity and the resolution bandwidth .The acquired... Platforms: Matlab

EZFFT(T,U) plots the power spectrum of the signal U(T) , where T is a 'time' and U is a real signal (T can be considered as a space coordinate as well). If T is a scalar, then it is interpreted as the 'sampling time' of the signal U. If T is a vector, then it is interpreted as the 'time' itself.... Platforms: Matlab

Only in very simple situations can we describe the correlation between two time series as a single number. Often it varies both as a function of time, and of wavelength. Datasets may be uncorrelated on short timescales due to noise, but strongly correlated on larger wavelengths (eg annual).This... Platforms: Matlab

This code computes the complex dielectric constant (i.e. relative permittivity) and the refractive index of various metals using either the Lorentz-Drude (LD) or the Drude model (D) as a function of input light wavelength.Additionally, it may compute the dielectric constant of pure water using a... Platforms: Matlab

The Optics Interference program simulates a ripple tank by showing the intensity of waves produced by a point source. Adding multiple point sources creates easily observable interference patterns showing constructive and destructive interference. Users can add point sources, move them around, and... Platforms: Mac

Java 1.5 (or newer) and Java Web Start are required to run the Exposure Time Calculator (ETC). A relatively fast machine is helpful because a complete model of the instrument will be calculated. Any system supporting Java and Java Web start can be used to run this software. Warning: This... Platforms: Mac

This simulation deals with the standing waves that can be produced on a string, such as on a guitar string. On such a string, the ends of the string are fixed. In the simulation, you can select from the fundamental frequency of the string, or the second, third, fourth, or fifth harmonic.... Platforms: Mac

The Thin Film Interference model investigates reflection and transmission of light through a thin film. The user can change the thickness and index of refraction of the thin film as well as the incident light wavelength. The Thin Film Interference Model was created using the Easy Java... Platforms: Mac