# PLaSK User Manual

#### Page Contents

- FreeCarrier3D.Spectrum Class
  - `FreeCarrier3D.Spectrum`
  - Methods
  - Descriptions
    - Method Details
      - `FreeCarrier3D.Spectrum.__call__()`

# FreeCarrier3D.Spectrum Class

class FreeCarrier3D.Spectrum

  Gain spectrum object. You can call it like a function to get gains for different wavelengths.

## Methods

`__call__`(lam) | Get gain at specified wavelength.

## Descriptions

### Method Details

FreeCarrier3D.Spectrum.__call__(lam)

  Get gain at specified wavelength.

  Parameters:

    lam (float) – Wavelength to get the gain at.