The Proto-Lolo-Burmese and old Burmese sources of written Burmese -AC*

It is a notable fact that some Written Burmese (WrB) morphemes in -ac are rather consistently spelt with -at when the initials are, or are interpretable as, with medial -y-. Thus WrB hrac ‘eight’ is written in some early Pagan inscriptions as hyat or het. Similarly, we find Old Burmese (OB) ñhat for WrB hñac ‘to squeeze’, OB cat for WrB cac ‘to examine, investigate’, OB khyat for WrB khyac ‘to love’ and OB mryat for WrB mrac ‘root’. On the other hand, the majority of the WrB morphemes in -ac are more consistently spelt with -ac or -ec. To give only a few examples, OB phlac, phlec for WrB phrac ‘to be become’, OB tac, tec or even tic for WrB tac or ta- (in composition with classifiers and in some other phrases) ‘one’, OB nhac or nhec for WrB hnac or hna- (in composition with classifiers) ‘two’, OB (Ɂa-)nhac for WrB (Ɂa-) hnac ‘year’, OB nhac for WrB hnac ‘heart’, OB Ɂac- or Ɂec- for WrB Ɂac- (‘older sibling’) in WrB Ɂac-kúi ‘elder brother’ and Ɂac-ma ‘elder sister’. Side by side, with OB hyat or het and OB khyat, however, we encounter variant spellings such as OB rhec and OB khyac. Likewise, phlet and Ɂat- are variant forms of OB phlac ~ phlec and OB Ɂac- ~ Ɂec-. In spite of this, it is not inconceivable that WrB -ac would be the result of merger of two distinct OB finals

Plasmonic Enhancement of Emission from Si-nanocrystals

Plasmonic gratings of different periodicities are fabricated on top of Silicon nanocrystals embedded in Silicon Dioxide. Purcell enhancements of up to 2 were observed, which matches the value from simulations. Plasmonic enhancements are observed for the first three orders of the plasmonic modes, with the peak enhancement wavelength varying with the periodicity. Biharmonic gratings are also fabricated to extract the enhanced emission from the first order plasmonic mode, resulting in enhancements with quality factors of up to 16.Comment: 4 pages, 5 figures added explanation of low purcell enhancement updated figure

Fully inverted single-digit nanometer domains in ferroelectric films

Achieving stable single-digit nanometer inverted domains in ferroelectric thin films is a fundamental issue that has remained a bottleneck for the development of ultrahigh density (>1 Tbit/in.^2) probe-based memory devices using ferroelectric media. Here, we demonstrate that such domains remain stable only if they are fully inverted through the entire ferroelectric film thickness, which is dependent on a critical ratio of electrode size to the film thickness. This understanding enables the formation of stable domains as small as 4 nm in diameter, corresponding to 10 unit cells in size. Such domain size corresponds to 40 Tbit/in.^2 data storage densitie

Photoluminescence from silicon dioxide photonic crystal cavities with embedded silicon nanocrystals

One dimensional nanobeam photonic crystal cavities are fabricated in silicon dioxide with silicon nanocrystals. Quality factors of over 9 x 10^3 are found in experiment, matching theoretical predictions, with mode volumes of 1.5(lambda/n)^3 . Photoluminescence from the cavity modes is observed in the visible wavelength range 600-820 nm. Studies of the lossy characteristics of the cavities are conducted at varying temperatures and pump powers. Free carrier absorption effects are found to be significant at pump powers as low as a few hundred nanowatts.Comment: 13 pages 9 figure