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$Femtosecond Laser Filaments for Use in Sub-Diffraction-Limited Imaging and Remote Sensing$

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Multiwavelength interferometry system for the Orion laser facility.

S Patankar, E T Gumbrell, T S Robinson

|February 3, 2016

Summary

This summary is machine-generated.

A new multiwavelength interferometry system for the Orion laser facility uses specialized prisms and achromatic optics. This system enables high-resolution imaging across UV to visible wavelengths, crucial for laser diagnostics.

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Area of Science:

* Laser-plasma interactions
* Optical diagnostics
* High-energy-density physics

Background:

* The Orion laser facility requires advanced diagnostics for its experiments.
* Existing interferometry systems may lack broadband achromatic capabilities or flexibility.

Purpose of the Study:

* To design and test a novel multiwavelength interferometry system for the Orion laser facility.
* To demonstrate broadband achromatic performance from UV to visible wavelengths.
* To achieve high-resolution imaging of small features.

Main Methods:

* Utilized self-path matching Wollaston prisms for interferometry.
* Incorporated UV-corrected achromatic optics for wavelength flexibility.
* Employed a 1054 nm Nd:glass probe beam and its harmonics.
* Integrated the optics package within a ten-inch manipulator for versatile deployment.

Main Results:

* Demonstrated interferograms at first, second, and fourth harmonics of the probe beam.
* Confirmed broadband achromatic capability from 263 nm (UV) to 527 nm (visible).
* Resolved features as small as 5 μm on 15x10 mm objects.
* Showcased capability at an off-harmonic wavelength for future applications.

Conclusions:

* The developed multiwavelength interferometry system is effective for the Orion laser facility.
* The system offers broadband achromatic imaging and high-resolution capabilities.
* Its compact design allows for flexible deployment within the target chamber.