The main results
- It has been demonstrated that a superradiance is more coherent than a laser radiation. It has been shown that a correlation function of the 1st order, defining a measure of the spatial coherence, is close to 1 in the case of superradiance and is equal to 0.2-0.5 for the laser radiation. A supercoherent state is conditioned by the formation of a long-range order in the semiconductor medium at superradiant phase transition
- The ultrashort superradiance pulses in semiconductor lasers based on the quantum GaN / InGaN structures at a wavelength of 407 nm have been experimentally obtained. A minimum length was 1.4 ps at the peak power of about 3 watts
- It is shown that the effective relaxation time of polarization, which determines the interaction coherence of pulses and a medium, strongly depends on its optical gain. It is demonstrated that with a large optical gain the effective coherence time can exceed the transverse relaxation time by more than an order of magnitude
- Femtosecond superradiance pulses with duration of 300-400 fs at a wavelength of 1300 and 1580 nm in semiconductor structures on quantum wells and dots have been experimentally obtained.
- The integrated lighting systems for a compact holographic 3D printer at a wavelength of 472, 531, 655nm with a total diffraction efficiency of about 80% have been developed. The experimental facility for synthesized RGB holograms (up to 140 by 140 mm) recording has been created.
- A new type of 3D display with a continuous angle, created on the basis of the principles of adaptive micro-projectile autostereoscopic display construction has been proposed; the principle of work has been demonstrated and the information processing methods for this type of displays have been studied.
- Methods to construct the integrated virtual holographic display have been examined; several schemes of integrated lighting systems for this type of display have been proposed and patented.