Chogyal Namkhai Norbu examines the sprirtual path from the viewpoint of Dzogchen.

Chogyal Namkhai Norbu examines the sprirtual path from the viewpoint of Dzogchen.

Clear explanation of the Dzogchen teachings and practices that reawaken and establish us in our true nature. Copyright © Libri GmbH. All rights reserved.

In many ways the best guide to Dzogchen teachings. Includes explanations that were previously thought too secret to publish.' Tricycle: The Buddhist Review

This book is a kind of treasure trove of practical often secret material that every Buddhist practitioner would love to know.

Since it was first published in 1995, Photonic Crystals has remained the definitive text for both undergraduates and researchers on photonic band-gap materials and their use in controlling the propagation of light. This newly expanded and revised edition covers the latest developments in the field, providing the most up-to-date, concise, and comprehensive book available on these novel materials and their applications. Starting from Maxwell's equations and Fourier analysis, the authors develop the theoretical tools of photonics using principles of linear algebra and symmetry, emphasizing analogies with traditional solid-state physics and quantum theory. They then investigate the unique phenomena that take place within photonic crystals at defect sites and surfaces, from one to three dimensions. This new edition includes entirely new chapters describing important hybrid structures that use band gaps or periodicity only in some directions: periodic waveguides, photonic-crystal slabs, and photonic-crystal fibers. The authors demonstrate how the capabilities of photonic crystals to localize light can be put to work in devices such as filters and splitters. A new appendix provides an overview of computational methods for electromagnetism. Existing chapters have been considerably updated and expanded to include many new three-dimensional photonic crystals, an extensive tutorial on device design using temporal coupled-mode theory, discussions of diffraction and refraction at crystal interfaces, and more. Richly illustrated and accessibly written, Photonic Crystals is an indispensable resource for students and researchers. Extensively revised and expanded Features improved graphics throughout Includes new chapters on photonic-crystal fibers and combined index-and band-gap-guiding Provides an introduction to coupled-mode theory as a powerful tool for device design Covers many new topics, including omnidirectional reflection, anomalous refraction and diffraction, computational photonics, and much more.

Dzogchen, or the "Great Perfection," is considered by many to be the apex of Tibetan Buddhism, and Longchen Rabjam is the most celebrated of all the saints of this remarkable tradition. Natural Perfection presents the radical precepts of Dzogchen, pointing the way to absolute liberation from conceptual fetters and leading the practitioner to a state of pure, natural integration into one's true being. Transcending the Tibetan context or even the confines of Buddhist tradition, Longchen Rabjam delivers a manual full of practical wisdom. Natural Perfection is a shining example of why people have continued to turn to the traditions of Tibet for spiritual and personal transformation and realization. Keith Dowman's illuminating translation of this remarkable work of wisdom provides clear accessibility to the profound path of Dzogchen in the here-and-now.