Waves

Question 7

A student is tasked with calibrating a new adjustable semiconductor laser diode to determine its emission wavelength, $λ\lambda$ , and optical frequency, $f$ . The student has access to a high-precision calibration diffraction grating marked with a known line density of $NlineN_{\text{line}}$ lines per millimetre.

Describe an experimental procedure to determine $λ\lambda$ and $f$ using this apparatus.

In your description, you must explain:

the experimental setup and the specific measurements that must be recorded,
how to use a graphical method to analyse the collected data to determine both $λ\lambda$ and $f$ (including all relevant equations),
two practical steps to reduce the experimental uncertainty of your measurements.

[7]

Waves

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Question 7

A student is tasked with calibrating a new adjustable semiconductor laser diode to determine its emission wavelength, $λ\lambda$ , and optical frequency, $f$ . The student has access to a high-precision calibration diffraction grating marked with a known line density of $NlineN_{\text{line}}$ lines per millimetre.

Describe an experimental procedure to determine $λ\lambda$ and $f$ using this apparatus.

In your description, you must explain:

the experimental setup and the specific measurements that must be recorded,
how to use a graphical method to analyse the collected data to determine both $λ\lambda$ and $f$ (including all relevant equations),
two practical steps to reduce the experimental uncertainty of your measurements.

[7]

Waves

Question 7

Waves Questions

Waves

Question 7

Waves Questions