the Luxembourg National Research Fund(FNR),grant reference C20_MS_14771094(ECLIPSE);For the purpose of open access,the author has applied a Creative Commons Atribution 4.0 International(CC BY 4.0)license to any Author Accepted Manuscript version arising from this submission.Further financial support is gratefully acknowledged from the Office of Naval Research Global(Project LAB'RINTH);the Institute of Advanced Studies of the University of Luxembourg(project TRANSCEND);the European Research Council(ERC,Proof-of-C oncept project VALIDATE,Grant Code 862315).
The seemingly simple step of molding a cholesteric liquid crystal into spherical shape,yielding a Cholesteric Spherical Reflector(CSR),has profound optical consequences that open a range of opportunities for potential...