Focusing effects on phase front curvature are important in determining the band-width generated in the near vacuum ultraviolet by sum frequency mixing of ultrashort pulses. Noncollinear sum frequency mixing is utilized to produce 6.0 eV fourth harmonic radiation of a passively mode-locked titanium doped sapphire laser operating at a high repetition rate. The spectrum of the generated fourth harmonic radiation is broader than would be predicted if focusing is not taken into account. A method of calculating the bandwidth for sum frequency mixing of short pulses is developed and is experimentally supported.
| Identifer | oai:union.ndltd.org:RICE/oai:scholarship.rice.edu:1911/13886 |
| Date | January 1994 |
| Creators | Reiten, Matthew Thomas |
| Contributors | Halas, Naomi J. |
| Source Sets | Rice University |
| Language | English |
| Detected Language | English |
| Type | Thesis, Text |
| Format | 113 p., application/pdf |
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