Module Identifier PH22010 Module Title OPTICS Academic Year 2001/2002 Co-ordinator Dr Geraint Thomas Semester Semester 2 Other staff Dr Xing Li Pre-Requisite Core Physics Modules at Level 1 Course delivery Lecture 20 lectures Seminars / Tutorials 3 seminars/workshops/exercise classes; 2 tutorials Assessment Course work /Example Sheets Example Sheets 11,12,13,15,16 & 17 Deadlines are detailed in the Year 3 Example Sheet Schedule distributed by the Department 30% Exam 2 Hours End of Semester Examinations 70%

#### Module description

The aim of the module is to provide students with a basic understanding of the fundamentals of optics. Part of the course is concerned with geometrical or ray optics, from the basic principles of reflection and refraction to the properties of lenses and simple optical instruments. Another section deals with physical or wave optics, concerning interference, Fraunhofer and Fresnel diffraction and leading on to polarisation and the optical properties of birefringent crystals. The course ends with an introduction to the modern topics of holography and non-linear optics.

Video on Optical Interference.

#### Module objectives / Learning outcomes

After taking this module students should be able to:
• Understand the basic principles of geometrical optics and apply them to the design of simple optical instruments.
• Understand optical interference and its uses in optical devices and techniques.
• Understand diffraction and the limits it sets to the resolution of optical instruments.
• Understand the basic principles of polarisation and wave propagation in uniaxial crystals.
• Answer numerical problems in geometrical and wave optics applied to simple systems.

#### Outline syllabus

GEOMETRICAL OPTICS

Reflection and refraction, lenses, aberrations, optical instruments.

PHYSICAL OPTICS

Wave properties of light.
Interference, two-beam interference, then film interference and its applications.
Michelson interferometer, multiple-beam interference, Fabry-Perot etalon.
Diffraction, Fraunhofer, single slit resolution, double slit, diffraction grating, introduction to Fresnel diffraction.
Polarisation, birefringence, uniaxial crystals.

MODERN OPTICS
Introduction to holography and non-linear optics.