PROGRAM NAUCZANIA
... Mandatory courses consist of two parts: work with academic teacher during lectures, exercises and laboratories, typically 16 hours, and student’s individual work. b) Principles of evaluation The modes of verification of assumed learning effects depend on type and length of the course. Before laborat ...
... Mandatory courses consist of two parts: work with academic teacher during lectures, exercises and laboratories, typically 16 hours, and student’s individual work. b) Principles of evaluation The modes of verification of assumed learning effects depend on type and length of the course. Before laborat ...
A Laser Coupler for DVD/CD Playback
... The DVD system is now being widely used in playback optical disc systems, such as DVDvideo players and DVD-ROM drives. In the DVD system, it is important that the optical pickup of the system can play back both DVD media and CD media such as CD-DA, CD-ROM and CD-R/RW. But the 650nm laser cannot be u ...
... The DVD system is now being widely used in playback optical disc systems, such as DVDvideo players and DVD-ROM drives. In the DVD system, it is important that the optical pickup of the system can play back both DVD media and CD media such as CD-DA, CD-ROM and CD-R/RW. But the 650nm laser cannot be u ...
PP_SSL_Modeling - LAS
... The round-trip condition delivers a simple quadratic equation for the q parameter. ...
... The round-trip condition delivers a simple quadratic equation for the q parameter. ...
Polymer Based Photonic Crystals
... addition of a third material of interFig. 1. a) Top: Scanning electron microscopy (SEM) image of spherical domains produced in a PS±PI (194/ 197 kg/mol) copolymer swollen with 50 % PS homopolymer. Bottom: Schematic of bcc packed spheres predicted mediate index has been shown to be for low minority b ...
... addition of a third material of interFig. 1. a) Top: Scanning electron microscopy (SEM) image of spherical domains produced in a PS±PI (194/ 197 kg/mol) copolymer swollen with 50 % PS homopolymer. Bottom: Schematic of bcc packed spheres predicted mediate index has been shown to be for low minority b ...
Photoreflectance of Semiconductors
... Defects cause strain on the surface Cracks form Periodicity lost ...
... Defects cause strain on the surface Cracks form Periodicity lost ...
High Energy Electron Current Measurement Techniques for µ10
... The first method we are implementing for the measurement of the high energy electron flux is based on the working principle of VFD displays. Electrons hitting a fluorescent material make it shine with different intensity depending of the voltage difference between cathode and anode. The current expe ...
... The first method we are implementing for the measurement of the high energy electron flux is based on the working principle of VFD displays. Electrons hitting a fluorescent material make it shine with different intensity depending of the voltage difference between cathode and anode. The current expe ...
Opto-acoustic Imaging
... increased by appropriately choosing an interferometer. For example, it was demonstrated that a confocal Fabry-Perot interferometer could reduce the noise by several dB over reference beam interferometer. However, the sensitivity may still be significant lower than that of a conventional piezoelectri ...
... increased by appropriately choosing an interferometer. For example, it was demonstrated that a confocal Fabry-Perot interferometer could reduce the noise by several dB over reference beam interferometer. However, the sensitivity may still be significant lower than that of a conventional piezoelectri ...
Mode-locking of a CW laser 1 Introduction
... That is, we obtain a train of Gaussian pulses of width 1/Ωg at a repetition rate of c/2L as shown in Fig. (1d). Note that the round trip travel time is 2L c : in effect, there is one pulse oscillating back and forth in the laser cavity that is output each time it comes to the output coupler. It was ...
... That is, we obtain a train of Gaussian pulses of width 1/Ωg at a repetition rate of c/2L as shown in Fig. (1d). Note that the round trip travel time is 2L c : in effect, there is one pulse oscillating back and forth in the laser cavity that is output each time it comes to the output coupler. It was ...
Single-frequency blue light generation by single-pass
... power allowing for higher circulating power compared to SHG where the losses are quadratic.14 The increased losses at high single-pass power will increase the coupling into the cavity as the input mirror M1 transmission ideally should match the losses in the cavity. Taking into account the losses in ...
... power allowing for higher circulating power compared to SHG where the losses are quadratic.14 The increased losses at high single-pass power will increase the coupling into the cavity as the input mirror M1 transmission ideally should match the losses in the cavity. Taking into account the losses in ...
Photonic laser thruster
A photonic laser thruster is an amplified laser thruster that generates thrust directly from the laser photon momentum, rather than laser-heating propellant. The concept of single-bounce laser-pushed lightsails that utilize the photon momentum was first developed in the 1960s, however, its conversion of laser power to thrust is highly inefficient, thus has been considered impractical. Over 50 years, there had been numerous theoretical and experimental efforts to increase the conversion efficiency by recycling photons, bouncing them repetitively between two reflective mirrors in an empty optical cavity, without success. In December 2006, Young Bae successfully solved this problem and demonstrated the conversion efficiency enhancement by a factor of 100 and a photon thrust of 35 micronewtons by putting the laser energizing media between the two mirrors as in typical lasers, and the photonic laser thruster was born. In August 2015, the photonic laser thruster was demonstrated to increase the conversion efficiency enhancement by a factor over 1,000 and to achieve a photon thrust of 3.5 millinewtons at Y.K. Bae Corporation. In addition, Propelling, slowing and stopping of a small satellite, 1U CubeSat, in simulated zero-gravity were demonstrated. The photonic laser thruster was initially developed for use in nanometer precision spacecraft formation, for forming ultralarge space telescopes and radars. The photonic laser thruster is currently developed for high-precision and high-speed maneuver of small spacecraft, such as formation flying, orbit adjustments, drag compensation, and rendezvous and docking. The photonic laser thruster can be used for beaming thrust from a conventional heavy resource vehicle to a more expensive & lightweight mission vehicle, similar to tankers in aerial refueling.The practical usage of the photonic laser thruster for main space propulsion would require extremely high laser powers and overcoming technological challenges in achieving the laser power and fabricating the required optics. Photonic laser thrusters have a very high specific impulse, and can permit spacecraft reach much higher speeds than with conventional rockets, which are limited by the Tsiolkovsky rocket equation. If the photonic laser thruster is scalable for the use in such main space propulsion, multiple photonic laser thrusters can be used to construct a 'photonic railway' that has been proposed as a potential permanent transport infrastructure for interplanetary or interstellar commutes, allowing the transport craft themselves to carry very little fuel.