Merge pull request #38 from invrs-io/mfschubert-patch-1

Update README.md

README.md

@@ -52,7 +52,7 @@ With some plotting (see the [example notebook](notebooks/readme_example.ipynb)),
 ## Challenges
 The current list of challenges is below. Check out the notebooks for ready-to-go examples of each.
 
-- The **ceviche** challenges are jax-wrapped versions of the [Ceviche Challenges](https://github.com/google/ceviche-challenges) open-sourced by Google, with defaults matching [Inverse Design of Photonic Devices with Strict Foundry Fabrication Constraints](https://pubs.acs.org/doi/10.1021/acsphotonics.2c00313) by Schubert et al.
+- The **ceviche** challenges are jax-wrapped versions of the [Ceviche Challenges](https://github.com/google/ceviche-challenges) open-sourced by Google, with defaults matching [Inverse Design of Photonic Devices with Strict Foundry Fabrication Constraints](https://pubs.acs.org/doi/10.1021/acsphotonics.2c00313) by Schubert et al. These were also studied by Ferber et al. in [SurCo: Learning Linear SURrogates for COmbinatorial Nonlinear Optimization Problems](https://proceedings.mlr.press/v202/ferber23a/ferber23a.pdf).
 - The **metagrating** challenge is a re-implementation of the [Metagrating3D](https://github.com/NanoComp/photonics-opt-testbed/tree/main/Metagrating3D) problem using the [fmmax](https://github.com/facebookresearch/fmmax) simulator.
 - The **diffractive splitter** challenge involves designing a non-paraxial diffractive beamsplitter useful for 3D sensing, as discussed in [LightTrans documentation](https://www.lighttrans.com/use-cases/application/design-and-rigorous-analysis-of-non-paraxial-diffractive-beam-splitter.html).
 - The **photon extractor** challenge is based on [Inverse-designed photon extractors for optically addressable defect qubits](https://opg.optica.org/optica/fulltext.cfm?uri=optica-7-12-1805) by Chakravarthi et al., and aims to create structures that increase photon extraction efficiency for quantum applications.