US 11,952,496 B1
Liquid and solid state laser from 7H-pyrano[2,3-B:4,5-B′]diquinoline derivatives using energy transfer mechanism
Abdulrahman I Almansour, Riyad (SA); Saradh Prasad Rajendra, Riyadh (SA); Mohamad Saleh Alsalhi, Riyadh (SA); Natarajan Arumugam, Riyadh (SA); and Raju Suresh Kumar, Riyadh (SA)
Assigned to KING SAUD UNIVERSITY, Riyadh (SA)
Filed by Abdulrahman I Almansour, Riyad (SA); Saradh Prasad Rajendra, Riyadh (SA); Mohamad Saleh Alsalhi, Riyadh (SA); Natarajan Arumugam, Riyadh (SA); and Raju Suresh Kumar, Riyadh (SA)
Filed on May 2, 2023, as Appl. No. 18/142,432.
Int. Cl. C09B 25/00 (2006.01); H01S 3/094 (2006.01); H01S 3/16 (2006.01); H01S 3/213 (2006.01)
CPC C09B 25/00 (2013.01) [H01S 3/094034 (2013.01); H01S 3/168 (2013.01); H01S 3/213 (2013.01)] 6 Claims
 
1. 7H-Pyrano[2,3-b:4,5-b′]diquinoline derivative compounds selected from the group consisting of 10-chloro-7H-pyrano[2,3-17:4,5-b′]diquinoline [(Cl-PD)] and 10-methoxy-7H-pyrano[2,3-b:4,5-b′]diquinoline [(MeO-PD)] having the following structures, respectively:

OG Complex Work Unit Chemistry