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What is COSMOSS

COSMOSS is Coupled OScillator MOdel Spectrum Simulator

COSMOSS is a Matlab based spectral simulation package. The simulation focuses on vibrational excitations, where each of the locally excited modes is treated as a harmonic oscillator and coupled to each other.

There are three major GUIs of COSMOSS:

1. Main GUI: Spectrum simulation (COSMOSS.m)
2. Model_GUI: Molecule construction (Model_XXX.m)
3. Modes_GUI: Mode Visualization (Plot_Mode.m)

Working flow

• Run COSMOSS.m
• Constructing a model structure
• Adjusting simulation parameters
• Do simulation

A typical working flow starts from initiating COSMOSS.m, which brings up the Main GUI. On the top-left of the Main GUI, one can select a molecule construction model, which will bring up a Model_GUI associated with the selected model. In the Model_GUI one can construct a molecule with some optional parameters. One can also visualize the molecule to confirm the structure. At this point, one can start to simulate spectrum by clicking on the button on the corresponding Model_GUI. If one needs to visualize the vibrational modes, the Modes_GUI can be brought up by clicking the "Plot Modes" button on Model GUI.