- Conference date: 20–24 July 2009
- Location: Stanford (California)
We report on some efforts to improve a quantum efficiency of titanium‐based optical superconducting transition edge sensors using the multi‐layered absorption structure for maximizing photon absorption in the Ti layer. Using complex refractive index values of each film measured by a Spectroscopic Ellipsometry, we designed and optimized by a simulation code. An absorption measurement of fabricated structure was in good agreement with the design and was higher than 99% at optimized wavelength of 1550 nm.
- Photon absorption
- Optical absorption
- Optical sensors
- Superconducting detectors
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