Fig. 5
![(a) A top view of an SEM image showing the conformal microscale roughness generated over micropillar structures fabricated with UV laser ablation. (b) The vapor cavity and micropillar wick etched into a single substrate with a lithography-free process using laser ablation. Glass frit bond lines are printed around the edge for joining to a condenser substrate. (Reproduced from Liu et al. [47].)](https://asmedc.silverchair-cdn.com/asmedc/content_public/journal/appliedmechanicsreviews/73/1/10.1115_1.4049801/1/amr_073_01_010802_f005.png?Expires=1716924438&Signature=rirgxK-p0YMrURK8AHqWLsO~rKoK3Vxec2e0RimNP4Q~eHBsT9QnGL5H1V-zCZrWdOq0KpXIFSjqHCvettQ76y3T4Boq8UHZ4oZeM6~wqH7cT9mOfLuHib0hGYV59Ng~cpxi7JgvZ-lIfaIzC2CYF9UTpeH1F5z-Ywctm1NdIPkAZMW5c~ZQKok9NJNU~OyqXP61s-~7yNGjK7vsmJeaFPDSPBcfrZsJgA4cHNLhfHvKJHRE5F4PpaVI6Hf5xuaCMSZQ4KZqgyXbnSy2da9ixgTsAxazCTIvpPmQEPgu4sx23U9pV3qQgvbnIUTHRlAOvTqSYllvhYH8Wot~RvdaFA__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
(a) A top view of an SEM image showing the conformal microscale roughness generated over micropillar structures fabricated with UV laser ablation. (b) The vapor cavity and micropillar wick etched into a single substrate with a lithography-free process using laser ablation. Glass frit bond lines are printed around the edge for joining to a condenser substrate. (Reproduced from Liu et al. [47].)