Antenna-coupled high T[sub c] superconducting microbolometer

Title: Antenna-coupled high T[sub c] superconducting microbolometer

Full Record
Other Related Research

Abstract

A device is provided for measuring radiant energy, the device comprising a substrate; a bolometer formed from a high T[sub c] superconducting material disposed on the substrate in an area that is about 1[times]5 [mu]m[sup 2] and about 0.02 [mu]m in depth; and a planar antenna disposed on the substrate and coupled to receive radiation and to impart the received radiation to the bolometer. 5 figs.

Inventors:: Hu, Q

Issue Date:: 1992-12-15

OSTI Identifier:: 7238506

Patent Number(s):: 5171733

Application Number:: PPN: US 7-625766

Assignee:: Univ. of California, Oakland, CA (United States)

DOE Contract Number:: AC03-76SF00098

Resource Type:: Patent

Resource Relation:: Patent File Date: 4 Dec 1990

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 47 OTHER INSTRUMENTATION; BOLOMETERS; DESIGN; HIGH-TC SUPERCONDUCTORS; SIZE; SUPERCONDUCTING DEVICES; THERMAL RADIATION; ELECTROMAGNETIC RADIATION; MEASURING INSTRUMENTS; RADIATIONS; SUPERCONDUCTORS; 665412* - Superconducting Devices- (1992-); 440500 - Thermal Instrumentation- (1990-)

Citation Formats


                    Hu, Q. Antenna-coupled high T[sub c] superconducting microbolometer.  United States: N. p., 1992. 
        Web.

Copy to clipboard


                    Hu, Q. Antenna-coupled high T[sub c] superconducting microbolometer.  United States.

Copy to clipboard


                    Hu, Q. Tue .  
        "Antenna-coupled high T[sub c] superconducting microbolometer".  United States.

Copy to clipboard


                    
@article{osti_7238506,

  title        = {Antenna-coupled high T[sub c] superconducting microbolometer},

  author       = {Hu, Q},

  abstractNote = {A device is provided for measuring radiant energy, the device comprising a substrate; a bolometer formed from a high T[sub c] superconducting material disposed on the substrate in an area that is about 1[times]5 [mu]m[sup 2] and about 0.02 [mu]m in depth; and a planar antenna disposed on the substrate and coupled to receive radiation and to impart the received radiation to the bolometer. 5 figs.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1992},

  month        = {12}

}

Copy to clipboard

Patent:

Search for the full text at the U.S. Patent and Trademark Office

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE Patents and OSTI.GOV collections:

Antenna-coupled high T.sub.c superconducting microbolometer

Patent Hu, Qing [Boston, MA]

A device is provided for measuring radiant energy, the device comprising a substrate; a bolometer formed from a high T.sub.c superconducting material disposed on the substrate in an area that is about 1.times.5 .mu.m.sup.2 and about 0.02 .mu.m in depth; and a planar antenna disposed on the substrate and coupled to receive radiation and to impart the received radiation to the bolometer.
Full Text Available
Optically activated high T{sub c} superconducting microbolometer.

Conference Yefremenko, V; Gordiyenko, E; Shustakova, G; ... - J. Phys: Conf. Ser.

A laser beam, precisely focused on the patterned superconducting structure, was used to nucleate a resistive area that is sensitive to external thermal effects. The 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) 3 millimeters long and 40 micrometers wide stripe and (ii) 1.25 millimeters long, and 50 micron wide meander-like structure. It is shown experimentally that 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 amore »« less
DOI: https://doi.org/10.1088/1742-6596/43/1/328
Design analysis of a high T sub c superconducting microbolometer

Journal Article Hu, Q., Richards, P.L.; (University of California, Department of Physics and Materials and Chemical Sciences Division, Lawrence Berkeley Laboratory, Berkeley, California 94720 (US)) - Applied Physics Letters; (USA)

We propose an antenna-coupled microbolometer based on the resistive transition of a high {ital T}{sub {ital c}} superconducting film as a detector for far infrared and millimeter waves. Such microbolometers can be mechanically stronger, more easily fabricated, and much faster than conventional bolometric infrared detectors. A design analysis shows that a noise equivalent power of 2.5{times}10{sup {minus}12} W Hz{sup {minus}1/2} is achievable for modulation frequencies up to 10 kHz. The superconducting film must be of high quality with narrow resistive transition and low 1/{ital f} noise.
DOI: https://doi.org/10.1063/1.101998
Fabrication and measurement of high T sub c superconducting microbolometers

Conference Nahum, M; Hu, Qing; Richards, P L [Lawrence Berkeley Lab., CA (USA)]; ...

We have fabricated and measured the performance of antenna-coupled microbolometers based on the resistive transition of a high {Tc} superconducting film for use as detectors of far-infrared and millimeter waves. A planar lithographed antenna (log-periodic or log-spiral) is used to couple the radiation to a thin YBCO film with dimensions ({approx}6 {times} 13 {mu}m{sup 2}) which are smaller than the wavelength to be measured. This film acts both as the resistor to thermalize the rf currents and as a transition edge thermometer to measure the resulting temperature rise. Because of its small size, both the thermal conductance from the filmmore »« less
Full Text Available

Similar Records