Laser emitting material, method for making the same and use thereof

Abstract

A solid-state laser emitting material for use in conjunction with a light source includes a polymer matrix functioning as host materials, containing laser dye of rhodamine 590 or rhodamine 610 as gain materials and nano-submicron particles as scatters therein. The lowest lasing threshold of the laser emitting material is approximately 5 mJ/cm 2 for 585 nm emission and 2 mJ/cm 2 for 630 nm emission.

1 . A solid-state laser emitting material for use in conjunction with a light source, comprising: 
 a polymer matrix functioning as host materials, containing laser dye of rhodamine 590 or rhodamine 610 as gain materials and nano-submicron particles as scatters therein,    wherein the lowest lasing threshold of the laser emitting material is approximately 5 mJ/cm 2  for 585 nm emission and 2 mJ/cm 2  for 630 nm emission.    
     
     
         2 . The laser emitting material of  claim 1 , further comprising a reflector attached to the polymer matrix.  
     
     
         3 . The laser emitting material of  claim 2 , wherein the reflector is designed to be a metal reflective film.  
     
     
         4 . The laser emitting material of  claim 3 , wherein the reflective film is made of aluminum.  
     
     
         5 . The laser emitting material of  claim 1 , wherein the host materials are selected from a group of polycarbonate (PC), polymethyl methacrylate (PMMA), polystyrene (PS) or mixtures thereof.  
     
     
         6 . The laser emitting material of  claim 1 , wherein the light source is designed to be a pump laser of a double-frequency Nd:YAG laser which produced pulses of 8 ns at a repetition rate of 10 Hz.  
     
     
         7 . The laser emitting material of  claim 1 , wherein the scatters are selected from a group of TiO 2  nano-submicron particles, Al 2 O 3  nano-submicron particles, ZnO nano-submicron particles or mixtures thereof.  
     
     
         8 . The laser emitting material of  claim 1 , wherein the laser emitting material is provided as in an article of a fiber.  
     
     
         9 . The laser emitting material of  claim 1 , wherein the laser emitting material is provided as in an article of a film.  
     
     
         10 . The laser emitting material of  claim 9 , wherein the laser emitting film is made by a process comprising the following steps mixing the laser dye of rhodamine 590 or rhodamine 610 and the particles in a dichloromethane resolution until the laser dye is dissolved; 
 adding a dichloromethane resolution of the polymer matrix to the mixture of the laser dye and particles;    after addition of the dichloromethane resolution of the polymer matrix, sonificating the mixture until an at least substantially homogeneous solution is formed; and    cell-casting the solution for forming the film.    
     
     
         11 . The laser emitting material of  claim 10 , wherein the weight ratio of the laser dye to polymer matrix is in a range of approximately 0.46 wt % 0.57 wt %.  
     
     
         12 . The laser emitting material of  claim 10 , wherein the weight ratio of TiO 2  particles to the polymer matrix is approximately 0.57 wt %.  
     
     
         13 . A laser emitting fiber fir use in conjunction with a light source, comprising 
 a polymer matrix functioning as host materials, containing laser dyes of rhodamine 590 or rhodamine 610 as gain materials and nano-submicron particles as scatters therein,    wherein the lowest lasing threshold of the laser emitting device is approximately 5 mJ/cm 2  for 585 nm emission and 2 MJ/cm 2  for 630 nm emission.    
     
     
         14 . The fiber of  claim 13 , wherein the fiber extends in a at least substantially longitudinal direction and terminates at two opposite ends, further comprising at least a reflector positioned at one of said ends.  
     
     
         15 . The fiber of  claim 14 , wherein the reflector is designed to be a metal reflective film.  
     
     
         16 . The fiber of  claim 13 , wherein the fiber extends in a at least substantially longitudinal direction and terminates at two opposite ends, further comprising at least a reflector positioned along at least a portion of a side surface of the fiber along the longitudinal direction.  
     
     
         17 . The fiber of  claim 16 , wherein the reflector is designed to be a metal reflective film.  
     
     
         18 . The fiber of  claim 13 , wherein the fiber extends in a at least substantially longitudinal direction and terminates at two opposite ends, further comprising at least a grating created at one of said ends.  
     
     
         19 . A laser emitting textile woven, knitted, embroided, braided or intermingled by a plurality of laser emitting fibers and for use in conjunction with a light source, wherein each fiber includes a polymer matrix functioning as host materials, containing laser dyes of rhodamine 590 or rhodamine 610 as gain materials and nano-particles as scatters therein, and wherein the lasing threshold of the laser emitting device is approximately 5 mJ/cm 2  for 585 nm emission and 2 mJ/cm 2  for 630 nm emission, the textile further comprising two opposite sides, with one side coated with a reflective film.  
     
     
         20 . The textile of  claim 19 , wherein the reflective film is made of aluminum.  
     
     
         21 . A laser therapy device, comprising a laser emitting material of a laser emitting film, a laser emitting fiber, a laser emitting textile, or a combination thereof and for use in conjunction with a light source, wherein the laser emitting material includes a polymer matrix functioning as host materials, containing laser dyes of rhodamine 590 or rhodamine 610 as gain materials and particles as scatters therein, and wherein the lasing threshold of the laser emitting device is approximately 5 mJ/cm 2  for 585 nm emission and 2 mJ/cm 2  for 630 nm emission.  
     
     
         22 . The therapy device of  claim 21 , wherein the therapy device is provided as of in an article of clothing suitable for wearing.  
     
     
         23 . The therapy device of  claim 21 , wherein the therapy device is designed to be a plaster.  
     
     
         24 . A laser emitting fabrics for use in conjunction with a light source, comprising, normal fabrics coated with laser emitting materials, wherein the laser emitting material includes a polymer matrix functioning as host materials, containing laser dyes of rhodamine 590 and rhodamine 610 as gain materials and submicron-nano particles as scatters therein, and wherein the lowest lasing threshold of the laser emitting device is approximately 5 mJ/cm 2  for 585 nm emission and 2 mJ/cm 2  for 630 nm emission.