He also applied general techniques within stochastic theory and signal analysis to develop improved descriptions of noise spectra in nonlinear semiconductor optical amplifiers .
Tromborg took up the field of photonic crystals and initiated and contributed himself to activities within the theory of photonic crystals .
Tromborg also applied general techniques within stochastic theory and signal analysis to develop improved descriptions of noise spectra in nonlinear semiconductor optical amplifiers .
Tromborg took up the field of photonic crystals and initiated and contributed himself to activities within the theory of photonic crystals .