2023-03-20 アリゾナ大学
今後、光を利用したエレクトロニクスの発展によって、現在市場で最も高価なハードウェアの1,000,000倍高速に動作するホームコンピューターが業界標準になることが期待されている。光スイッチングにより、超高速なオプティカルトランジスタの樹立が可能となり、超高速オプティカルエレクトロニクスの発展が可能となる。
＜関連情報＞
- https://news.arizona.edu/story/optical-switching-record-speeds-opens-door-ultrafast-light-based-electronics-and-computers
- https://www.science.org/doi/10.1126/sciadv.adf1015
合成光場での超高速光スイッチングとデータ符号化 Ultrafast optical switching and data encoding on synthesized light fields
Dandan Hui ,Husain Alqattan ,Simin Zhang ,Vladimir Pervak,Enam Chowdhury,Mohammed Th. Hassan
Science Advances Published:22 Feb 2023
DOI:https://doi.org/10.1126/sciadv.adf1015
Abstract
Modern electronics are founded on switching the electrical signal by radio frequency electromagnetic fields on the nanosecond time scale, limiting the information processing to the gigahertz speed. Recently, optical switches have been demonstrated using terahertz and ultrafast laser pulses to control the electrical signal and enhance the switching speed to the picosecond and a few hundred femtoseconds time scale. Here, we exploit the reflectivity modulation of the fused silica dielectric system in a strong light field to demonstrate the optical switching (ON/OFF) with attosecond time resolution. Moreover, we present the capability of controlling the optical switching signal with complex synthesized fields of ultrashort laser pulses for data binary encoding. This work paves the way for establishing optical switches and light-based electronics with petahertz speeds, several orders of magnitude faster than the current semiconductor-based electronics, opening a new realm in information technology, optical communications, and photonic processor technologies.
