Quantum dot microscope apparatus comprising a nanoscale semiconductor on the tip of a fiber, a tunneling electrical lead and a capacitive electrical lead on the fiber

US11693024B2 · kind B2 · utility

Assignees

• BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY · US
• Wisconsin Alumni Research Foundation · US

Inventors

• Stuart Tessmer · Okemos, US
• ERIC WILLIAM GOODWIN · Hidden Lake Estates, US
• Oleksandr Igorovich Levchenko · Mississauga, CA

Key dates

• Filing date: Oct 5, 2021
• Grant date: Jul 4, 2023
• Expiry date: Jan 20, 2042

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N21/6458
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A quantum dot microscope apparatus is provided. A further aspect employs a tilted or tapered end or tip on a microscopic probe. Another aspect of the present apparatus employs a probe including a quantum dot with only one tunneling lead connected to a power source. A manufacturing aspect includes creating a tapered or asymmetrically shaped specimen-facing end of a probe where a quantum dot is located on the end. A further manufacturing aspect includes using focused ion-beam milling to create a tip or end of a quantum dot microscope probe.