10

The N-Slit Laser Interferometer Optical Architecture and Applications

10.1 Introduction

In this chapter, attention is given to one particular optical architecture that integrates several concepts introduced in Chapters 2, 4 and 6 and has various applications in imaging and metrology. That particular optical architecture is that of the N-slit laser interferometer (NSLI). Depending on the application, the NSLI can be configured with a narrow-linewidth tunable laser or a narrow-linewidth fixed-frequency laser.

10.2 Optical Architecture of the NSLI

The NSLI is illustrated in Figure 10.1. In its basic configuration, this interferometer requires the illumination from a laser emitting in a single transverse mode (TEM00) with narrow-linewidth ...

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