Abstract
Observation of second-harmonic conical refraction in KTiOPO4 crystal is reported. Two second-harmonic conical patterns, namely forced and free harmonic waves, are identified and registered with exceptional clarity and level of details. The forced second-harmonic wave evolves into the characteristic ring intensity distribution while the free-harmonic wave gives a single ray direction, resulting in a spot.
| Original language | English |
|---|---|
| Pages (from-to) | 9–12 |
| Journal | Applied Physics B-Lasers and Optics |
| Volume | 103 |
| DOIs | |
| Publication status | Published - 7 Apr 2011 |
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