Future Prospects
Optical novelty filters using interferometer-based phase-conjugate mirrors for photothermal refraction should be tested.
The limiter-based apparatus may be useful in photothermal microscopy.
The implicit scattering compensation could be exploited for photothermal imaging in heterogeneous media. (e.g., tissue and other biological samples)
We all could use more money, time, and support for scientific endeavors. Who knows what the future will bring?