High-throughput characterization of linear and nonlinear optical properties in composition-spread (Sr,Ca) 2 CuO 3 thin-films

M. Ohtani, T. Makino, K. Yamamoto, Y. Segawa, T. Fukumura, H. Sakurada, J. Nishimura, H. Koinuma, M. Kawasaki

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


We have constructed a high-throughput spectrometer and a nonlinear optical tester used for the characterization of combinatorial thin-film libraries. The optical spectrometer consists of a multi-channel detector and an automated bidimensional translation stage. The transmission spectrum of an area of 0.5 mm × 2 mm can be measured for a wavelength range of 280-900 nm. Our nonlinear optical tester uses a compact mode-locked fiber-laser as an excitation source. The laser beam is focused by a graded index lens, the fundamental light is filtered out, and the third-harmonic (TH) light is detected by a photomultiplier. The data collection and the motion of the stepping motor-driven stage are synchronized. Typical measurement time for a composition-spread thin-film is 5 min. A demonstration is shown for a composition-spread thin-film of one-dimensional cuprate (Sr x Ca 1-x ) 2 CuO 3 with gigantic third-order optical nonlinearity.

Original languageEnglish
Pages (from-to)133-137
Number of pages5
JournalApplied Surface Science
Issue number1-3
Publication statusPublished - 2004 Feb 15


  • Charge-transfer excitation
  • Fiber-optic
  • Thin-films

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films


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