Sökning: "Grating"
Visar resultat 16 - 20 av 115 avhandlingar innehållade ordet Grating.
16. Application and Design Developments in Diffractive Optics
Sammanfattning : There has been strong development in the field of diffractive optics (DO) in research laboratories over the past two decades. Much progress has been made, both in design and analysis, as well as in manufacturing techniques. However, so far DO have only reached the market in small numbers. LÄS MER
17. Integrated Nanophotonic Devices in Lithium Niobate
Sammanfattning : Lithium niobate (LN) is a ferroelectric crystal offering a broad transparency spectrum, together with excellent electro-optic and nonlinear optical properties. Thanks to them, LN is setting the standard for quantum optics and telecommunications in critical applications such as ultrafast modulation and frequency conversion. LÄS MER
18. Sparse Array Architectures for Wireless Communication and Radar Applications
Sammanfattning : This thesis focuses on sparse array architectures for the next generation of wireless communication, known as fifth-generation (5G), and automotive radar direction-of-arrival (DOA) estimation. For both applications, array spatial resolution plays a critical role to better distinguish multiple users/sources. LÄS MER
19. Wafer-scale Vacuum and Liquid Packaging Concepts for an Optical Thin-film Gas Sensor
Sammanfattning : This thesis treats the development of packaging and integration methods for the cost-efficient encapsulation and packaging of microelectromechanical (MEMS) devices. The packaging of MEMS devices is often more costly than the device itself, partly because the packaging can be crucial for the performance of the device. LÄS MER
20. Waveguide holograms for integrated optics : design and application to fiber coupling
Sammanfattning : .... LÄS MER