Spectroscopic Aspects of Gradient-Porosity System

Laser-assisted etching process with the illumination of short laser wavelength of 405nm has been used to prepare efficient and thin layers of gradient- porosity porous silicon (GPSi) by employing two techniques; a prepare efficient and thin layers of gradient- porosity porous silicon (GPSi) by employing two techniques; a prepare efficient and thin layers of gradient- porosity porous silicon (GPSi) by employing two techniques; a prepare efficient and thin layers of gradient- porosity porous silicon (GPSi) by employing two techniques; a prepare efficient and thin layers of gradient- porosity porous silicon (GPSi) by employing two techniques; a Laser-assisted etching process with the illumination of short laser wavelength of 405nm has been used to prepare efficient and thin layers of gradient- porosity porous Laser-assisted etching process with the illumination of short laser wavelength of 405nm has been used to prepare efficient and thin layers of gradient- porosity porous Laser-assisted etching process with the illumination of short laser wavelength of 405nm has been used to prepare efficient and thin layers of gradient- porosity porous