The present invention relates to a substrate comprising an ion-implanted layer, for example a cation, wherein the ion implanted layer has a substantially uniform distribution of the implanted ions at a significantly greater depth than previously possible, to a well-defined and sharp boundary within the substrate. The invention further comprises said sub-strate wherein the substrate is a silicon based substrate, such as glass. The invention also comprises the use of said material as a waveguide and the use of said material in measurement devices.

The present invention relates to a substrate comprising an ion-implanted layer, for example a cation, wherein the ion implanted layer has a substantially uniform distribution of the implanted ions at a significantly greater depth than previously possible, to a well-defined and sharp boundary within the substrate. The invention further comprises said sub-strate wherein the substrate is a silicon based substrate, such as glass. The invention also comprises the use of said material as a waveguide and the use of said material in measurement devices.

A glass substrate and a method for manufacturing the glass substrate are provided. The glass substrate may include a base glass including SiO.sub.2, Al.sub.2O.sub.3, and Li.sub.2O, and nanocrystals having an average diameter in a range from about 5 nm to about 10 nm, thereby exhibiting enhanced surface strength properties while maintaining good transmittance properties. The method may include a step of heat-treating a base glass, thereby providing a glass substrate having enhanced strength properties.

A glass substrate and a method for manufacturing the glass substrate are provided. The glass substrate may include a base glass including SiO.sub.2, Al.sub.2O.sub.3, and Li.sub.2O, and nanocrystals having an average diameter in a range from about 5 nm to about 10 nm, thereby exhibiting enhanced surface strength properties while maintaining good transmittance properties. The method may include a step of heat-treating a base glass, thereby providing a glass substrate having enhanced strength properties.

A structure for coupling an optical signal between an integrated circuit photonic structure and an external optical fiber is disclosed as in a method of formation. The coupling structure is sloped relative to a horizontal surface of the photonic structure such that light entering or leaving the photonic structure is substantially normal to its upper surface.

Alkali aluminosilicate glasses that are resistant to damage due to sharp impact and capable of fast ion exchange are provided. The glasses comprise at least 4 mol % P.sub.2O.sub.5 and, when ion exchanged, have a Vickers indentation crack initiation load of at least about 7 kgf.

Chemically strengthened glass articles having at least one deep compressive layer extending from a surface of the article to a depth of layer DOL of about 130 m up to about 175 m or, alternatively, to a depth of compression (DOC) in a range from about 90 m to about 120 m within the article. The compressive layer has a stress profile that includes a first substantially linear portion extending from a relatively shallow depth to the DOL or DOC and a second portion extending from the surface to the shallow depth. The second portion is substantially linear at a depth from 0 m to 5 m and has a steeper slope than that of the first portion of the profile. Methods of achieving such stress profiles are also described.

Chemically strengthened glass articles having at least one deep compressive layer extending from a surface of the article to a depth of layer DOL of about 130 m up to about 175 m or, alternatively, to a depth of compression (DOC) in a range from about 90 m to about 120 m within the article. The compressive layer has a stress profile that includes a first substantially linear portion extending from a relatively shallow depth to the DOL or DOC and a second portion extending from the surface to the shallow depth. The second portion is substantially linear at a depth from 0 m to 5 m and has a steeper slope than that of the first portion of the profile. Methods of achieving such stress profiles are also described.

Disclosed is a glass window having a luminous capability, which is suitable for use in automotive applications, architectural applications, or other applications. Exemplary embodiments of a glass window having a luminous capability include one or more glass sheet layers, a thin film layer having fine particles dispersed in a matrix of a thin film material, and at least one light source for introducing light into the thin film layer. The fine particles scatter the light and generate luminousness of the glass window. Exemplary embodiments of a glass window having luminous capability may further include one or more resinous sheet layers or one or more interlayers such as a plastic film layer.

Disclosed is a glass window having a luminous capability, which is suitable for use in automotive applications, architectural applications, or other applications. Exemplary embodiments of a glass window having a luminous capability include one or more glass sheet layers, a thin film layer having fine particles dispersed in a matrix of a thin film material, and at least one light source for introducing light into the thin film layer. The fine particles scatter the light and generate luminousness of the glass window. Exemplary embodiments of a glass window having luminous capability may further include one or more resinous sheet layers or one or more interlayers such as a plastic film layer.