The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
It was confirmed that photonic crystals (PhC) have the considerable effect on enhancement of extraction efficiency of light emitting diodes (LED) by minimizing the total internal reflection of the light escaping the LED chip. The enhancement of the extraction efficiency requires a structure design that optimizes the interaction of the guided modes with the PhCs. It strongly depends on the structure...
In this paper we present optical technologies, which can be applicable for fabrication of planar photonic crystals (PhCs). We focus on basic description of interference and near-field scanning optical microscope lithography and direct laser writing process. We also show possibilities and results obtained by application of PhC on light emitting diode surface and their emission properties.
In this paper we present new imprinting process for fabrication of PhC structures on surface of thin PDMS membranes. We used interference lithography in combination with imprinting technique. 2D PhC surface relief structures of period 495 nm were patterned in thin PDMS membranes with depth up to 100 nm. Patterned PDMS membranes placed on different optoelectronic device surface could modify the final...
In this paper, effect of 2D photonic pattern on the emission properties of the GaAs/AlGaAs based light emitting diode (LED) emitting at wavelength of 850 nm is demonstrated. For LED surface patterning, the interference lithography based on a double-exposure process using two-beam interference method was used. The prepared photonic structure pattern in the LED surface was analyzed by atomic force microscope...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.