Abstract: A volume Bragg grating (VBG) containing one or more controlled phase profiles holographically embedded therein that is operable over a broad wavelength range, methods for making such controlled phase profile-embedded VBGs, and applications thereof.

Abstract: A volume Bragg grating (VBG) containing one or more controlled phase profiles holographically embedded therein that is operable over a broad wavelength range, methods for making such controlled phase profile-embedded VBGs, and applications thereof.

Abstract: The present invention provides a method of advertising a product or a service. The method involves distributing an advertisement to a viewer, wherein the advertisement includes an embedded code. In a typical embodiment, the viewer would view the advertisement, take note of the embedded code, and send the code to the advertisers or third-party administrator. In response to receiving the code, the advertiser or third-party administrator would distribute a voucher to the viewer.

Abstract: A collapsible patient supporting carrier configured as either a backboard or a stretcher for being pulled or towed behind a person, animal or vehicle, such as a bicycle, motorcycle, snow mobile or jet ski. The carrier comprises a plurality of support sections interconnected by connecting mechanisms that are configured to selectively place the carrier in a collapsed condition having a support surface for carrying medical supplies or an extended condition for transporting an injured person. Each support section is made up of a frame and one or more support members, such as a rigid plate or a somewhat flexible material, attached to the frame. The forward end of the carrier has a tow connector member to connect to a tow member for towing. Transport members, such as wheels, skis or a floatation member, are operatively connected near the second end of the carrier to facilitate movement over a surface.