Measurement of group refractive indices of glass using a color-selective multi-pulse generated with a spatial light modulator
| Autor: | Kyohhei Shigematsu, Hisanari Takahashi, Hiroshi Satozono, Koyo Watanabe, Takashi Inoue |
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| Rok vydání: | 2021 |
| Předmět: |
Spatial light modulator
Materials science business.industry Pulse (signal processing) 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Sample (graphics) Atomic and Molecular Physics and Optics 010309 optics Optics Group (periodic table) Attenuation coefficient 0103 physical sciences Waveform 0210 nano-technology business Refractive index Group delay and phase delay |
| Zdroj: | Optics letters. 46(7) |
| ISSN: | 1539-4794 |
| Popis: | We demonstrate a method of measuring group refractive indices ( n g ) by using only a temporal waveform of a color-selective multi-pulse (CSMP) generated with a spatial-light-modulator-based optical pulse shaper. Each pulse of the CSMP is characterized by different spectral components. Thus, n g of a sample can be estimated by calculating the group delay of the spectrally different pulses in the CSMP after passing through the sample. As a proof-of-concept, we measured n g of a glass plate by using a CSMP. We confirmed that the measured n g values were in agreement with those derived from Sellmeier’s formula with an accuracy on the order of 1 0 − 4 . |
| Databáze: | OpenAIRE |
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