A Hybrid SQUID Gradiometer with 3-Dimensional Thin-Film Pick-Up Coils Fabricated Using an Excimer Laser

Keiji Tsukada, Takanori Komuro, Masanori Higuchi, Akira Adachi, Hisashi Kado

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A compact hybrid superconducting quantum interference device (SQUID) gradiometer consisting of a coaxial pick-up coil with a superconducting Nb thin-film and a square double-washer dc-SQUID is developed. To make the pick-up coils, a 3-dimensional thin-film patterning technique is developed using an excimer laser. The gradiometer operates with flux locked loop electronics, a low-noise amplifier, and a high-speed (1 MHz) phase-sensitive detector. This gradiometer is sensitive to levels as low as 9 fT âœHz.

Original languageEnglish
Pages (from-to)19-21
Number of pages3
JournalIEEE Electron Device Letters
Volume15
Issue number1
DOIs
Publication statusPublished - Jan 1994
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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