Refine
Year of publication
- 2024 (12)
- 2023 (40)
- 2022 (230)
- 2021 (162)
- 2020 (246)
- 2019 (312)
- 2018 (312)
- 2017 (281)
- 2016 (258)
- 2015 (295)
- 2014 (239)
- 2013 (189)
- 2012 (218)
- 2011 (187)
- 2010 (90)
- 2009 (115)
- 2008 (29)
- 2007 (89)
- 2006 (177)
- 2005 (193)
- 2004 (208)
- 2003 (101)
- 2002 (139)
- 2001 (160)
- 2000 (162)
- 1999 (208)
- 1998 (174)
- 1997 (155)
- 1996 (123)
- 1995 (178)
- 1994 (87)
- 1993 (10)
- 1992 (8)
- 1991 (2)
- 1989 (1)
- 1972 (1)
Document Type
- Article (4141)
- Doctoral Thesis (780)
- Postprint (137)
- Monograph/Edited Volume (120)
- Other (83)
- Preprint (44)
- Review (35)
- Habilitation Thesis (24)
- Conference Proceeding (15)
- Master's Thesis (11)
Keywords
- diffusion (57)
- stars: massive (54)
- gamma rays: general (47)
- anomalous diffusion (45)
- stars: early-type (44)
- cosmic rays (43)
- stars: winds, outflows (41)
- radiation mechanisms: non-thermal (38)
- Magellanic Clouds (37)
- ISM: supernova remnants (36)
Institute
- Institut für Physik und Astronomie (5393) (remove)
SBS-Phase Conjugation for Thermal Lens Compensation in 100 Watt Average Power Solid-State Lasers
(1994)
Changes of the molecular arrangenemt that can be induced by means of the LB technique in the multilayers of a disc-shaped multialkynyl amphiphile are monitored by means of small angle X-ray diffraction. Studies of the monolayers at the air-water interface reveal "edge-on" orientation of the discs. Specific effects of the counter- ions (Na+, Cd²+, Pb²+, and Ba²+) and sub-solution pH on the monolayer collapse pressure, transfer efficiency and molecular order in the multilayers are found. A correlation between the monolayer properties and the ability for formation of periodic discotic structures in the presence of divalent counterions is established. The discotic molecules retain their "edge-on" arrangement in the highly compressed transferred films with slight irregular interdigtation of the flexible wings and inclination to the substrate normal. The tilt and the inter- digitation are reduced when the discotic monolayers are deposited in alternating LB films with barium arachidate spacer layers.