| CPC G02F 1/353 (2013.01) [C01B 32/182 (2017.08); C01B 32/20 (2017.08); G02F 1/355 (2013.01); B82Y 20/00 (2013.01); G02F 1/0356 (2013.01); G02F 2203/10 (2013.01)] | 4 Claims | 

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               1. A device comprising: 
            memory; and 
                a processor configured to: 
              receive electronic information about a graphene structure; and 
                  determine, based on the electronic information, an amount of microvolts with a microwave input sent to a graphene structure, 
                  wherein: 
                    the amount of microvolts is determined at a cryogenic temperature, 
                      the amount of microvolts is determined at a quantum level, and 
                    the microwave input is transmitted across the graphene structure; 
                  determine, a frequency range for the microwave input, wherein the frequency range is between 1 and 60 gigahertz; 
                  determine two optical fields, with each optical field having a different frequency, wherein the two optical fields are transmitted to the graphene structure; 
                  determine, based on the electronic information, an amount of optical photons at the quantum based on the amount of microvolts; and 
                  determine a conversion rate based on the amount of optical photons and the amount of microvolts. 
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