Highly Sensitive Infrared Detector Fabricated with Thin Film of High Tc Y-Ba-Cu-O Superconductor. Phase 1
Abstract
In the phase I study of the project entitled 'Highly Sensitive Infrared Detector Fabricated with Thin Film of High Tc Y-Ba-Cu-O Superconductor using Pulsed Laser'. We have successfully deposited thin films of Y-Ba-Cu-O on MgO/TrO2 substrate by plasma assisted laser deposition (PLD) technique. One great advantage of PLD method is that precisely controlled as-deposited thin film of desired stoichiometry can be prepared at low processing temperature (450 degree C) without the need of any post annealing. High temperature post annealing tends to percolate microcrystals which renders the optical excitation highly inhomogeneous for optical detection studies. In the Phase II study (of this two-phased program), the technical objectives will be: Improvement in the responsivity of the detector, More complete study of temperature dependence of the response, Wavelength dependence of the response in 1-10 micrometers region, High frequency or time dependence of the response, Determination of detector noise level (NEP).
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 28, 1989
- Accession Number
- ADA208775
Entities
People
- Rama Rao