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Title: Method for detection and imaging over a broad spectral range

Abstract

A method of controlling the coordinate sensitivity in a superconducting microbolometer employs localized light, heating or magnetic field effects to form normal or mixed state regions on a superconducting film and to control the spatial location. Electron beam lithography and wet chemical etching were applied as pattern transfer processes in epitaxial Y--Ba--Cu--O films. Two different sensor designs were tested: (i) a 3 millimeter long and 40 micrometer wide stripe and (ii) a 1.25 millimeters long, and 50 micron wide meandering-like structure. Scanning the laser beam along the stripe leads to physical displacement of the sensitive area, and, therefore, may be used as a basis for imaging over a broad spectral range. Forming the superconducting film as a meandering structure provides the equivalent of a two-dimensional detector array. Advantages of this approach are simplicity of detector fabrication, and simplicity of the read-out process requiring only two electrical terminals.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
915752
Patent Number(s):
7274019
Application Number:
11/190,784
Assignee:
CHO
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01J - MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Yefremenko, Volodymyr, Gordiyenko, Eduard, Pishko, Olga, Novosad, Valentyn, and Pishko, Vitalii. Method for detection and imaging over a broad spectral range. United States: N. p., 2007. Web.
Yefremenko, Volodymyr, Gordiyenko, Eduard, Pishko, Olga, Novosad, Valentyn, & Pishko, Vitalii. Method for detection and imaging over a broad spectral range. United States.
Yefremenko, Volodymyr, Gordiyenko, Eduard, Pishko, Olga, Novosad, Valentyn, and Pishko, Vitalii. Tue . "Method for detection and imaging over a broad spectral range". United States. https://www.osti.gov/servlets/purl/915752.
@article{osti_915752,
title = {Method for detection and imaging over a broad spectral range},
author = {Yefremenko, Volodymyr and Gordiyenko, Eduard and Pishko, Olga and Novosad, Valentyn and Pishko, Vitalii},
abstractNote = {A method of controlling the coordinate sensitivity in a superconducting microbolometer employs localized light, heating or magnetic field effects to form normal or mixed state regions on a superconducting film and to control the spatial location. Electron beam lithography and wet chemical etching were applied as pattern transfer processes in epitaxial Y--Ba--Cu--O films. Two different sensor designs were tested: (i) a 3 millimeter long and 40 micrometer wide stripe and (ii) a 1.25 millimeters long, and 50 micron wide meandering-like structure. Scanning the laser beam along the stripe leads to physical displacement of the sensitive area, and, therefore, may be used as a basis for imaging over a broad spectral range. Forming the superconducting film as a meandering structure provides the equivalent of a two-dimensional detector array. Advantages of this approach are simplicity of detector fabrication, and simplicity of the read-out process requiring only two electrical terminals.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {9}
}

Patent:

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