High-Harmonic Generation In Amorphous Solids

Abstract

High-harmonic generation in isolated atoms and molecules has been widely utilized in extreme ultraviolet photonics and attosecond pulse metrology. Recently, high-harmonic generation has been observed in solids, which could lead to important applications such as all-optical methods to image valance charge density and reconstruct electronic band structures, as well as compact extreme ultraviolet light sources. So far these studies are confined to crystalline solids; therefore, decoupling the respective roles of long-range periodicity and high density has been challenging. Here we report the observation of high-harmonic generation from amorphous fused silica. We decouple the role of long-range periodicity by comparing harmonics generated from fused silica and crystalline quartz, which contain the same atomic constituents but differ in long-range periodicity. Our results advance current understanding of the strong-field processes leading to high-harmonic generation in solids with implications for the development of robust and compact extreme ultraviolet light sources.

Publication Date

12-1-2017

Publication Title

Nature Communications

Volume

8

Issue

1

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1038/s41467-017-00989-4

Socpus ID

85030099754 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85030099754

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