Friday, December 14, 2012

Movie Review: The Loneliest Planet Guides Us to a Land Where ...

Julia Loktev?s The Loneliest Planet follows a young couple trekking across Caucasus Mountains, sampling local food, poking around abandoned?buses? making love in grimy hotels. They hire a guide and set out on a multi-day hike through gorgeous countryside. Interspersed with scenes of playful candor between Nica (Hani Furstenberg) and Alex (Gael Garcia Bernal) are wide-angle shots of the couple and the guide making their way through a dwarfing landscape. And so we have the ?lonely planet? as existential metaphor and hap-tip to the eponymous travel guide, and both meanings of the title end up informing an aspect of the film?s thematic concern. There is a tension in the film between the tourist and the pilgrim, between the person who travels to consume the exotic, and the person for whom the otherness of the exotic locale leaves an indelible mark on the soul.

Loktev?s film starts out slowly, deliberately so. Shot in a candid, handheld manner, we simply watch as these two lovers set out on the journey. And while there is a slight sense of tension in the air ? we never know whether or not to trust their guide, or fear their surroundings ? there also really doesn?t seem to be anything of consequence. This is Loktev?s method, immersing us a familiar sense of travel, while distancing the enough to recognize the arbitrariness of it. Nica and Alex roll around in grass, cross streams on wobbly bridges and fill their canteens from mountain springs. All the while there guide cracks awkward jokes or listens to the still air.

Then there is a sudden twist that sets The Loneliest Planet in motion. It is hardly a moment, followed by an even lesser moment, that nonetheless drives an unexpected rift between the traveling couple. Without giving away this surprise, which is one of the film?s only really moments of action, it only needs to be said that The Loneliest Planet becomes a rumination on love and instinct, on depth of character and how our amorous appetites can be challenged by the simple conformation with something profound.

There is finesse to Loktev?s light touch, and the film is so subtle and quiet you respect the understated craft in it. Credit must also go to Garcia Bernal and Furstenberg, whose natural candor and palpable sensuality support Loktev?s minimalism, while keeping us engaged with romantic banter that feels close. Another thread that holds this delicate movie together is its portrayal of sexuality, both intimate and incessant.?And yet Loktev underplays her hand a little. We spend too long wandering aimlessly before we are drawn in by what the filmmaker is really up to. That dampens the film?s overall effect, and leaves the lingering feeling that what we have is a 40 minute short film drawn-out to feature form.

Source: http://frontrow.dmagazine.com/2012/12/movie-review-the-loneliest-planet-guides-us-to-a-land-where-loves-lost/

real housewives of beverly hills Pink Floyd

Tuesday, December 11, 2012

Electronics: Graphene sheets' growing attractions

Dec. 10, 2012 ? A theoretical and numerical study of graphene sheets reveals a property that may lead to novel opto-electric devices and circuits.

One-atom-thick sheets of carbon -- known as graphene -- have a range of electronic properties that scientists are investigating for potential use in novel devices. Graphene's optical properties are also garnering attention, which may increase further as a result of research from the A*STAR Institute of Materials Research and Engineering (IMRE). Bing Wang of the IMRE and his co-workers have demonstrated that the interactions of single graphene sheets in certain arrays allow efficient control of light at the nanoscale1.

Light squeezed between single graphene sheets can propagate more efficiently than along a single sheet. Wang notes this could have important applications in optical-nanofocusing and in superlens imaging of nanoscale objects. In conventional optical instruments, light can be controlled only by structures that are about the same scale as its wavelength, which for optical light is much greater than the thickness of graphene. By utilizing surface plasmons, which are collective movements of electrons at the surface of electrical conductors such as graphene, scientists can focus light to the size of only a few nanometers.

Wang and his co-workers calculated the theoretical propagation of surface plasmons in structures consisting of single-atomic sheets of graphene, separated by an insulating material. For small separations of around 20 nanometers, they found that the surface plasmons in the graphene sheets interacted such that they became 'coupled' (see image). This theoretical coupling was very strong, unlike that found in other materials, and greatly influenced the propagation of light between the graphene sheets.

The researchers found, for instance, that optical losses were reduced, so light could propagate for longer distances. In addition, under a particular incoming angle for the light, the study predicted that the refraction of the incoming beam would go in the direction opposite to what is normally observed. Such an unusual negative refraction can lead to remarkable effects such as superlensing, which allows imaging with almost limitless resolution.

As graphene is a semiconductor and not a metal, it offers many more possibilities than most other plasmonic devices, comments the IMRE's Jing Hua Teng, who led the research. "These graphene sheet arrays may lead to dynamically controllable devices, thanks to the easier tuning of graphene's properties through external stimuli such as electrical voltages." Graphene also allows for an efficient coupling of the plasmons to other objects nearby, such as molecules that are adsorbed on its surface. Teng therefore says that the next step is to further explore the interesting physics in graphene array structures and look into their immediate applications.

The A*STAR-affiliated researchers contributing to this research are from the Institute of Materials Research and Engineering

Share this story on Facebook, Twitter, and Google:

Other social bookmarking and sharing tools:


Story Source:

The above story is reprinted from materials provided by The Agency for Science, Technology and Research (A*STAR).

Note: Materials may be edited for content and length. For further information, please contact the source cited above.


Journal Reference:

  1. Bing Wang, Xiang Zhang, Francisco Garc?a-Vidal, Xiaocong Yuan, Jinghua Teng. Strong Coupling of Surface Plasmon Polaritons in Monolayer Graphene Sheet Arrays. Physical Review Letters, 2012; 109 (7) DOI: 10.1103/PhysRevLett.109.073901

Note: If no author is given, the source is cited instead.

Disclaimer: Views expressed in this article do not necessarily reflect those of ScienceDaily or its staff.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/matter_energy/electricity/~3/GIkurTSsI8Q/121210080431.htm

Kyla Ross