Posts with the tag optics
If you want to create a gaussian window with Matlab in three dimensions (as you can do in two dimensions with the built-in
gausswin()) you can use the function
gauss3D() found on MATLAB Central:
S = gauss3D(20,20,7); slice(<span...
We use the modules 8752 and 8753.
List of commands
||Read/Display Analog Input||61|
||Load Default Parameters||62|
||Display Diagnostics Byte from Device||62|
||Query State of Digital Inputs||89|
||Lock Out Other Input Devices||63|
||Set/Display Device-to-Joystick Mappings||64|
||Set Digital Output||65|
||Unlock Other Input Devices||66|
||Query Firmware Version||66|
Picomotor Control Commands<table class="table...
You can use the following Python function to convert a photon energy (in electron volts) to the corresponding wavelength (in nano meters):
def wavelength_from_energy ( electron_volts): """Returns a photon wavelength in nm from a photon energy given in eV.""" ...
This is a fancy flat-field focusing, holographic grating as opposed to the previously used Rowland gratings.
- Aberration-corrected Laminar-type Replica Diffraction Gratings for flat-field Polychromators in the range of Extreme Ultra-Violet Light(EUV:13nm). Suitable for the next generation of semiconductor lithography.
- Less high order light due to laminar type grooves configuration, Low...
Estimate the transform limited beam duration of a laser pulse from its spectral width in nm in Python
Here are a couple of Python functions to find the minimum duration of a gaussian pulse with a certain spectral FWHM (measured in nm) at a given central wavelength plus the...
Convert between plus-cylinder and minus-cylinder notation in eyeglass prescription writings using Python
Doctors in Germany usually give out prescriptions with negative values for the cylinder. Some eyeglass manufacturers list their products with plus-cylinder notation so the optometrists have to convert the notations.
If you want to convert your prescription writings, I created this online tool to convert your values: