| 查看: 1865 | 回复: 17 | |||
| 当前主题已经存档。 | |||
fdtdpc实习版主
|
[交流]
【资源】最新一期(5月21日)nature上的金纳米棒: gold nanorods
|
||
|
Nature 459, 410-413 (21 May 2009) | doi:10.1038/nature08053 http://www.nature.com/nature/jou ... e08053.html?lang=en Five-dimensional optical recording mediated by surface plasmons in gold nanorods Multiplexed optical recording provides an unparalleled approach to increasing the information density beyond 1012 bits per cm3 (1 Tbit cm-3) by storing multiple, individually addressable patterns within the same recording volume. Although wavelength1, 2, 3, polarization4, 5, 6, 7, 8 and spatial dimensions9, 10, 11, 12, 13 have all been exploited for multiplexing, these approaches have never been integrated into a single technique that could ultimately increase the information capacity by orders of magnitude. The major hurdle is the lack of a suitable recording medium that is extremely selective in the domains of wavelength and polarization and in the three spatial domains, so as to provide orthogonality in all five dimensions. Here we show true five-dimensional optical recording by exploiting the unique properties of the longitudinal surface plasmon resonance (SPR) of gold nanorods. The longitudinal SPR exhibits an excellent wavelength and polarization sensitivity, whereas the distinct energy threshold required for the photothermal recording mechanism provides the axial selectivity. The recordings were detected using longitudinal SPR-mediated two-photon luminescence, which we demonstrate to possess an enhanced wavelength and angular selectivity compared to conventional linear detection mechanisms. Combined with the high cross-section of two-photon luminescence, this enabled non-destructive, crosstalk-free readout. This technique can be immediately applied to optical patterning, encryption and data storage, where higher data densities are pursued. [ Last edited by fdtdpc on 2009-5-21 at 10:56 ] |
回复此楼» 猜你喜欢
化工学院（学院正式调剂群+联系方式）
已经有0人回复
-
化工学院（学院官方群）-院士团队招生-学生自由度高-培养模式成熟高效
已经有0人回复
-
无机化学论文润色/翻译怎么收费?
已经有226人回复
-
黑龙江大学分析化学招调剂
已经有0人回复
-
武汉高校国家级人才团队招收材料，化学，纺织等专业硕士调剂生
已经有26人回复
-
纺大化工学院（官方群）-院士团队招生-学生自由度高发展好-培养模式成熟
已经有0人回复
-
温州大学化材学院王娟课题组招生
已经有5人回复
-
学院官方群-院士团队招生-学生自由度高-培养模式成熟已有10余名学生赴985海外深造
已经有0人回复
-
武汉纺织大学化工学院官方群-院士团队招生-学生自由度高-10余名学生赴985海外深造
已经有0人回复
-
南昌航空大学蒋华麟教授课题组招收化学、环境、碳达峰碳中和及相关专业硕士信息
已经有0人回复
-
湖北师范大学复试调剂
已经有0人回复
» 本主题相关商家推荐: (我也要在这里推广)
fdtdpc
版主
- 应助: 8 (幼儿园)
- 金币: 7254.2
- 散金: 78
- 红花: 3
- 帖子: 1983
- 在线: 2407.9小时
- 虫号: 298125
- 注册: 2006-11-19
- 专业: 金属非晶态、准晶和纳米晶
|
谁方便download? http://www.nature.com/nature/jou ... umm/e090521-06.html Digital storage in five dimensions In the cause of cramming more and more data onto optical storage devices, materials scientists have sought to add extra dimensions to recording media, literally. Now a group from Melbourne's Swinburne University of Technology has developed a five-dimensional optical recording technique with the potential to increase storage capacities by several orders of magnitude. The extra dimensions are the wavelength and polarization of light, which integrated with the familiar three spatial dimensions creates true five-dimensional recording within one volume. The result is a theoretical 1.6 terabytes capacity for a DVD-sized disk. The new system makes use of surface plasmon resonance (SPR)-mediated photothermal reshaping of a substrate of gold nanorods immersed in a polymer layer. Crosstalk-free readout is via two-photon luminescence. Immediate applications can be found in security patterning and multiplexed optical storage. Letter: Five-dimensional optical recording mediated by surface plasmons in gold nanorods Peter Zijlstra, James W. M. Chon & Min Gu doi:10.1038/nature08053 First paragraph | Full Text | PDF (927K) | Supplementary information [ Last edited by fdtdpc on 2009-5-21 at 10:00 ] |
2楼2009-05-21 09:52:36
fdtdpc
版主
- 应助: 8 (幼儿园)
- 金币: 7254.2
- 散金: 78
- 红花: 3
- 帖子: 1983
- 在线: 2407.9小时
- 虫号: 298125
- 注册: 2006-11-19
- 专业: 金属非晶态、准晶和纳米晶
3楼2009-05-21 10:56:34
winter_gates
主管区长
生命过客
- 应助: 1 (幼儿园)
- 金币: 1161.8
- 散金: 100
- 红花: 1
- 帖子: 615
- 在线: 20.4小时
- 虫号: 541629
- 注册: 2008-04-08
- 专业: 生物化学
★ ★
gshsheng(金币+2,VIP+0): 5-21 12:23
gshsheng(金币+2,VIP+0): 5-21 12:23
4楼2009-05-21 11:55:02
5楼2009-05-27 18:18:19
kane35
管理员
- 应助: 1 (幼儿园)
- 金币: 5990.3
- 散金: 86
- 红花: 5
- 帖子: 1607
- 在线: 258.9小时
- 虫号: 506682
- 注册: 2008-02-18
- 性别: GG
- 专业: 武术理论与方法
6楼2009-05-28 08:36:40
chenjin
主管区长
- 应助: 3 (幼儿园)
- 金币: 5146.8
- 散金: 133
- 红花: 6
- 帖子: 2033
- 在线: 450.7小时
- 虫号: 102844
- 注册: 2005-11-14
- 专业: 凝聚态物性 II ：电子结构
7楼2009-05-28 11:32:15
8楼2009-05-28 11:35:16
pigfly
超级版主
- 应助: 20 (小学生)
- 金币: 935.8
- 散金: 621
- 红花: 9
- 帖子: 2173
- 在线: 130.7小时
- 虫号: 197401
- 注册: 2006-02-25
- 专业: 波谱分析与成像分析
9楼2009-06-03 00:19:23
10楼2009-06-03 08:50:08
